Thermo Scientific TVA2020 Instruction Manual

Thermo Scientific TVA2020 Instruction Manual
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TVA2020
Instruction Manual
Toxic Vapor Analyzer
Part Number 111755-00
21Jan2014
© 2013 Thermo Fisher Scientific Inc. All rights reserved.
Specifications, terms and pricing are subject to change. Not all products are available in all countries. Please
consult your local sales representative for details.
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Franklin, MA 02038
1-508-520-0430
www.thermoscientific.com/aqi
WEEE Compliance
This product is required to comply with the European Union’s Waste
Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is
marked with the following symbol:
Thermo Fisher Scientific has contracted with one or more
recycling/disposal companies in each EU Member State, and this product
should be disposed of or recycled through them. Further information on
Thermo Fisher Scientific’s compliance with these Directives, the recyclers
in your country, and information on Thermo Fisher Scientific products
which may assist the detection of substances subject to the RoHS Directive
are available at: www.thermoscientific.com/WEEERoHS.
Thermo Fisher Scientific
WEEE Compliance
Thermo Fisher Scientific
WEEE Compliance
About This Manual
This manual provides information about installing, maintaining, and
servicing the TVA2020 Toxic Vapor Analyzer (TVA). It also contains
important alerts to ensure safe operation and prevent equipment damage.
The manual is organized into the following chapters and appendices to
provide direct access to specific operation and service information.
Thermo Fisher Scientific
●
Chapter 1 “Introduction” provides an overview of the product,
describes the theory of operations, and product specifications.
●
Chapter 2 “Hardware and Startup” describes the setup and different
instrument configurations, and provides a quick start procedure.
●
Chapter 3 “Display Menus” describes the functions of the instrument
keypad, and the enhanced probe display.
●
Chapter 4 “Calibration” describes the calibration process and provides
procedures for calibrating the instrument.
●
Chapter 5 “Preventive Maintenance” provides maintenance procedures
to ensure reliable and consistent instrument operation.
●
Chapter 6 “Troubleshooting” provides guidelines for diagnosing
analyzer problems, isolating faults, and includes recommended actions
for restoring proper operation.
●
Chapter 7 “Servicing” provides guidelines for diagnosing analyzer
problems, isolating faults, and includes recommended actions for
restoring proper operation.
●
Chapter 8 “Optional Accessories” describes the optional equipment
that can be used with this analyzer.
●
Appendix A “Warranty” is a copy of the warranty statement.
●
Appendix B “Text Data Formats” is a description of the files available
for download from the instrument.
●
Appendix C “Response Factors” describes response factors for
monitoring different compounds and provides a list of the various
gases.
TVA2020 Instruction Manual
i
About This Manual
Safety
Safety
Review the following information carefully before using the instrument.
This manual provides specific information on how to operate the
instrument, however if used in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
Safety and Equipment
Damage Alerts
This manual contains important information to alert you to potential safety
hazards and risks of equipment damage. Refer to the following types of
alerts you may see in this manual.
Safety and Equipment Damage Alert Descriptions
Alert
Description
DANGER
A hazard is present that will result in death or serious
personal injury if the warning is ignored. ▲
WARNING
A hazard is present or an unsafe practice can result in
serious personal injury if the warning is ignored. ▲
CAUTION
The hazard or unsafe practice could result in minor to
moderate personal injury if the warning is ignored. ▲
Equipment Damage
The hazard or unsafe practice could result in property
damage if the warning is ignored. ▲
Safety and Equipment Damage Alerts in this Manual
Alert
Description
WARNING
Do not replace battery in an area classified as hazardous
due to presence of flammable gases or vapors. ▲
Do not operate battery charger in an area classified as
hazardous due to presence of flammable gases or vapors.
▲
Misusing or mishandling the battery packs can lead to
fluid leakage, heat generation, fire or an explosion. ▲
Charger and USB connections are not allowed in an area
classified as hazardous due to presence of flammable
gases or vapors. ▲
To prevent a potential explosion, do not operate the
instrument with the PID compartment open or FID
detector cap removed. ▲
Power down the instrument before performing any
service procedures. ▲
ii
TVA2020 Instruction Manual
Thermo Fisher Scientific
About This Manual
Safety and Equipment Damage Alerts
Alert
Description
Never change an electrical component in an area
classified as hazardous due to presence of flammable
gases or vapors. ▲
Parts replacement and maintenance should not be
performed in areas classified as hazardous due to
presence of flammable gases or vapors. Use only Thermo
Fisher Scientific replacement parts. (Extended Service
Plans are available; contact Thermo Fisher Scientific for
further information.) ▲
A safe refill operation means there are no hydrogen
leaks. Before any valves are opened, use a wrench to
firmly tighten connections to the hydrogen supply tanks
and the tank fill adapter. If escaping hydrogen is heard
during the filling operation, close all valves and correct
the leak before proceeding. Leak test with soapy water or
equivalent. ▲
Remove the hydrogen tank from the instrument before
servicing. ▲
All maintenance procedures must be performed on a
clean surface using clean tools. Avoid touching the
lamp's window as well as the metalized portion of the
cell assembly with your bare fingers. Fingerprints left on
these parts may adversely affect the sensors operation.
Latex gloves are preferred, but if they are not used, your
hands must be clean and free of oils, lotions, etc. It is
acceptable to hold the lamp by its glass body or by the
edges of the window. ▲
CAUTION
If you use multipoint calibration or a gas other than
methane or isobutylene and then apply response
factors/curves (that have been generated with reference
to a single point methane/isobutylene calibration), the
resulting measurements will probably be incorrect. ▲
Do not fill hydrogen tank to a pressure greater than 15.2
MPa (2200 psig). ▲
Observe all hydrogen handling procedures listed below.
▲
Do not allow any contact with the igniter coil during
cleaning. ▲
Equipment Damage
Thermo Fisher Scientific
Do not operate the TVA2020 if its case is damaged or
otherwise compromised. ▲
TVA2020 Instruction Manual
iii
About This Manual
WEEE Symbol
WEEE Symbol
The following symbol and description identify the WEEE marking used on
the instrument and in the associated documentation.
Symbol
Description
Marking of electrical and electronic equipment which applies to electrical and
electronic equipment falling under the Directive 2002/96/EC (WEEE) and the
equipment that has been put on the market after 13 August 2005. ▲
Where to Get Help
Service is available from exclusive distributors worldwide. Contact one of
the phone numbers below for product support and technical information
or visit us on the web at www.thermoscientific.com/aqi.
1-866-282-0430 Toll Free
1-508-520-0430 International
We continue to support our customers with advanced online resources.
Our Air Quality Instruments Online Library allows our customer’s access
to product documents and information on a constant basis.
Available 24-hours a day and seven-days a week, the online library provides
quick access to information regardless of time zone or office hours.
To register for an account or log in, please visit
www.thermoscientific.com/aqilibrary.
iv
TVA2020 Instruction Manual
Thermo Fisher Scientific
Contents
Thermo Fisher Scientific
Chapter 1
Introduction........................................................................................................ 1-1
Flame Ionization Detection (FID)....................................................... 1-2
Benefits of Flame Ionization Detection ............................................ 1-3
Photoionization Detection .................................................................. 1-4
Benefits of Photoionization Detection.............................................. 1-5
Dual Detectors.................................................................................... 1-6
Benefits of Dual Detectors ............................................................... 1-7
Concentration Calculation and Calibration......................................... 1-8
Standard Specifications ....................................................................... 1-9
External Influences............................................................................ 1-11
Product Safety Specifications............................................................. 1-12
Chapter 2
Hardware and Startup...................................................................................... 2-1
Overview............................................................................................. 2-1
Instrument Functions.......................................................................... 2-3
Using the Instrument .......................................................................... 2-4
Startup ................................................................................................ 2-4
Instrument Connections ..................................................................... 2-4
Instrument Sidepack Display............................................................... 2-6
Instrument Sidepack Keypad............................................................... 2-7
Control Menu..................................................................................... 2-9
Quick Start Procedure....................................................................... 2-10
Chapter 3
Display Menus................................................................................................... 3-1
Main Menu Structure ......................................................................... 3-1
Run Mode........................................................................................... 3-4
Accessing the Run Menu.................................................................. 3-5
Run: Log None ............................................................................. 3-5
Run: Log Auto .............................................................................. 3-5
Run: Log VOC ............................................................................. 3-6
Run: Log F.E. ............................................................................... 3-8
Setup Menu ........................................................................................ 3-9
Calibration Settings............................................................................. 3-9
Alarm Levels...................................................................................... 3-10
Accessing the Alarm Menu ............................................................. 3-12
STEL Level Alarm....................................................................... 3-12
Low Ceiling Alarm...................................................................... 3-13
High Ceiling Alarm..................................................................... 3-14
Log Methods..................................................................................... 3-15
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Contents
Accessing the LOG Menu .............................................................. 3-16
Log None.................................................................................... 3-16
Log Auto..................................................................................... 3-17
Log VOC.................................................................................... 3-18
Log F.E. ...................................................................................... 3-19
Log Custom ................................................................................ 3-21
Passcode Protection........................................................................... 3-23
New Passcode................................................................................. 3-23
Enable............................................................................................ 3-23
Disable........................................................................................... 3-24
Other Settings ................................................................................... 3-24
User Identification Number ........................................................... 3-24
Date ............................................................................................... 3-25
Time of Day................................................................................... 3-26
User Options.................................................................................. 3-27
Key Click .................................................................................... 3-28
Display Delay.............................................................................. 3-28
Information Menu ............................................................................ 3-29
Memory ............................................................................................ 3-30
vi
Chapter 4
Calibration ..........................................................................................................4-1
Calibration Scenarios .......................................................................... 4-1
Scenario 1 ........................................................................................ 4-1
Scenario 2 ........................................................................................ 4-1
Scenario 3 ........................................................................................ 4-2
Calibration Configuration................................................................... 4-3
Number Span Pt .............................................................................. 4-4
Defining the Span Gas Concentration(s).......................................... 4-4
Background Correct ......................................................................... 4-6
Defining the Background Correction ............................................ 4-7
RF Calc Mode.................................................................................. 4-8
Cal Accept Mode ............................................................................. 4-8
Cal Save Mode ................................................................................. 4-9
Detector Counts.................................................................................. 4-9
Defining the Response Factor ........................................................... 4-10
Response Factor Multiplier ............................................................ 4-11
Response Curve.............................................................................. 4-11
Zero Reference Point Calibration................................................... 4-14
Span Reference Point(s) ................................................................. 4-16
Flow Calibration ............................................................................... 4-18
Chapter 5
Preventive Maintenance .................................................................................5-1
Safety Precautions ............................................................................... 5-2
Replacement Parts............................................................................... 5-2
Battery and Battery Charger ................................................................ 5-2
TVA2020 Instruction Manual
Thermo Fisher Scientific
Contents
Battery Warnings and Precautions.................................................... 5-2
Safety Test Criteria........................................................................... 5-4
Hydrogen Gas Tank............................................................................ 5-4
Precautions in Handling and Storage ............................................... 5-5
Fuel Refilling Procedure................................................................... 5-6
Cleaning an FID Cartridge ................................................................. 5-7
Cleaning the FID Detector Cap .......................................................... 5-9
Cleaning the FID Detector Cavities .................................................. 5-10
Replacing Water Trap Probe Filter and O-Rings............................... 5-11
Replacing the O-Rings ................................................................... 5-12
Cleaning or Replacing a Sintered Metal Filter Cup ........................... 5-13
Replacing the Charcoal Filter ............................................................ 5-14
Thermo Fisher Scientific
Chapter 6
Troubleshooting ................................................................................................ 6-1
Troubleshooting Guide ....................................................................... 6-2
Warning Messages............................................................................... 6-6
Service Locations................................................................................. 6-7
Chapter 7
Servicing............................................................................................................. 7-1
Replacement Parts List ........................................................................ 7-2
Opening the Instrument ..................................................................... 7-5
Replacing the Battery .......................................................................... 7-6
Hydrogen Gas Tank............................................................................ 7-6
Precautions in Handling and Storage ............................................... 7-7
Fuel Refilling Procedure................................................................... 7-7
Cleaning the PID Lamp ...................................................................... 7-9
Replacing the FID End Cap.............................................................. 7-14
Flow Tests......................................................................................... 7-14
Leak Check ....................................................................................... 7-16
Flow Check....................................................................................... 7-17
Flow Calibration ............................................................................... 7-17
Servicing the Pump ........................................................................... 7-19
Removing the Pump Assembly....................................................... 7-19
Accessing the Orifice ...................................................................... 7-20
Replacing the Pump ....................................................................... 7-21
Replacing the Pump Valve ............................................................. 7-21
Replacing the Sample Line in Enhanced Probe ................................. 7-23
Replacing Sample Line in Sample Probe ........................................... 7-25
Replacing the Connector Access Door............................................... 7-26
Replacing the Internal Battery Charger Connector Cable.................. 7-27
Replacing the Internal Probe Connector Cable ................................. 7-28
Chapter 8
Optional Accessories....................................................................................... 8-1
Sample Probe Option.......................................................................... 8-1
Enhanced Probe Option...................................................................... 8-2
TVA2020 Instruction Manual
vii
Contents
Enhanced Probe Display .................................................................. 8-3
Enhanced Probe Keys.................................................................... 8-4
The Enhanced Probe and the RUN Mode ....................................... 8-4
Auto Logging with the Enhanced Probe........................................... 8-5
VOC Logging with the Enhanced Probe.......................................... 8-6
FE Logging with the Enhanced Probe .............................................. 8-7
Route Entry Response Factor ........................................................ 8-7
Navigating the Route File ............................................................. 8-8
Logging Data ................................................................................ 8-8
Repair Menus................................................................................ 8-9
Additional Component Information .............................................. 8-10
Telescoping Extension Option .......................................................... 8-11
Activated Charcoal Filter Adapter ..................................................... 8-12
Bluetooth Communications .............................................................. 8-13
Bluetooth Commands .................................................................... 8-13
Digital Data Logging (Bluetooth) .................................................. 8-15
GPS .................................................................................................. 8-16
viii
Appendix A
Warranty.............................................................................................................A-1
Appendix B
Text Data Formats ............................................................................................B-1
Route Database ...................................................................................B-2
Route List ...........................................................................................B-6
Configuration .....................................................................................B-8
Calibration........................................................................................B-11
Factory..............................................................................................B-13
Calibration History ...........................................................................B-15
Logged Data......................................................................................B-17
Appendix C
Response Factors ............................................................................................. C-1
TVA2020 Instruction Manual
Thermo Fisher Scientific
Figures
Figure 1–1. Typical Flame Ionization Detector................................................... 1-3
Figure 1–2. Typical Photoionization Detector .................................................... 1-5
Figure 1–3. TVA2020 Dual Detector Configuration ........................................... 1-7
Figure 1–4. Interconnection Control Drawing .................................................. 1-12
Figure 2–1. Instrument Sidepack Display........................................................... 2-2
Figure 2–2. TVA2020 Instrument Connections................................................... 2-5
Figure 2–3. Keypad ............................................................................................. 2-7
Figure 3–1. TVA2020 Menu Structure................................................................ 3-3
Figure 5–1. Replacing the FID Cartridge ............................................................ 5-7
Figure 5–2. Removing the FID Cartridge ............................................................ 5-8
Figure 5–3. Cleaning the FID Detector Cap........................................................ 5-9
Figure 5–4. Water Trap Probe Assembly - Filter and O-Ring Replacing ......... 5-11
Figure 5–5. Water Trap Probe Assembly - Filter and O-Ring Replacing ......... 5-12
Figure 5–6. Sintered Metal Filter - Cleaning or Replacing .............................. 5-13
Figure 5–7. Activated Charcoal Filter Adapter................................................. 5-14
Figure 7–1. TVA2020 Component Layout........................................................... 7-4
Figure 7–2. Hardware ......................................................................................... 7-5
Figure 7–3. Removing the PID Sensor................................................................ 7-9
Figure 7–4. Removing the Filter Cap ................................................................ 7-10
Figure 7–5. Removing the Filter Media............................................................ 7-10
Figure 7–6. Removing the Spacer .................................................................... 7-10
Figure 7–7. Removing the Cell Assembly......................................................... 7-11
Figure 7–8. Removing the PID Lamp ................................................................ 7-11
Figure 7–9. Cleaning the PID Lamp .................................................................. 7-11
Figure 7–10. Installing the Lamp into the Sensor ............................................ 7-12
Figure 7–11. Pressing Down the PID Lamp ...................................................... 7-12
Figure 7–12. Installing the Cell Assembly........................................................ 7-12
Figure 7–13. Placing the Spacer....................................................................... 7-13
Figure 7–14. Placing the Filter Media .............................................................. 7-13
Figure 7–15. Aligning the Cap Key ................................................................... 7-13
Figure 7–16. Sample Flow Troubleshooting Flowchart ................................... 7-15
Figure 7–17. Removing the Pump..................................................................... 7-19
Figure 7–18. Replacing the Pump..................................................................... 7-20
Figure 7–19. Exploded View of Pump Head ..................................................... 7-22
Figure 7–20. Replacing Sample Line in Enhanced Probe................................. 7-24
Thermo Fisher Scientific
TVA2020 Instruction Manual
ix
Figures
Figure 7–21. Replacing the Sample Line in Simple Probe ...............................7-25
Figure 7–22. Replacing the Connector Access Door ........................................7-26
Figure 7–23. Replacing the Internal Battery Charger Connector Cable...........7-27
Figure 7–24. Replacing the Internal Probe Connector Cable ...........................7-28
Figure 8–1. Sample Probe Option .......................................................................8-1
Figure 8–2. Enhanced Probe Option....................................................................8-2
Figure 8–3. Enhanced Probe Option Display ......................................................8-3
Figure 8–4. Telescoping Extension Option .......................................................8-11
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Tables
Table 1–1. TVA2020 Product Specifications ...................................................... 1-9
Table 1–2. TVA2020 External Influences ......................................................... 1-11
Table 1–3. TVA2020 Product Safety Specifications ........................................ 1-12
Table 2–1. Keys and Functions ........................................................................... 2-8
Table 3–1. Main Menu Selection and Functions ............................................... 3-2
Table 3–2. Alarm Configurations...................................................................... 3-11
Table 3–3. Available Log Data Types............................................................... 3-15
Table 4–1. Gas Concentration Units................................................................... 4-6
Table 4–2. Detector Counts .............................................................................. 4-10
Table 6–1. Troubleshooting ................................................................................ 6-2
Table 6–2. Warning Messages........................................................................... 6-6
Table 7–1. TVA2020 Replacement Parts............................................................ 7-2
Table 8–1. Enhanced Probe Keys and Functions................................................ 8-4
Table 8–2. Enhanced Probe Menu...................................................................... 8-5
Table 8–3. Bluetooth Commands ..................................................................... 8-13
Thermo Fisher Scientific
TVA2020 Instruction Manual
xi
Tables
xii
TVA2020 Instruction Manual
Thermo Fisher Scientific
Chapter 1
Introduction
The Thermo Scientific™ TVA2020 Toxic Vapor Analyzer, is an advanceddesign, portable, organic/inorganic vapor monitor for the gas survey
industry. The analyzer uses either a flame ionization detector (FID), or
both an FID and a photoionization detector (PID).
For details of the instrument’s theory of operation and product
specifications, see the following topics:
●
“Flame Ionization Detection (FID)” on page 1-2
●
“Photoionization Detection” on page 1-4
●
“Dual Detectors” on page 1-6
●
“Concentration Calculation and Calibration” on page 1-8
●
“Standard Specifications” on page 1-9
●
“External Influences” on page 1-11
●
“Product Safety Specifications” on page 1-12
Thermo Fisher Scientific is pleased to supply this portable survey
instrument. We are committed to the manufacture of instruments
exhibiting high standards of quality, performance, and workmanship.
Service personnel are available for assistance with any questions or
problems that may arise in the use of this instrument. For more
information on servicing, see Chapter 7, “Servicing”.
Thermo Fisher Scientific
TVA2020 Instruction Manual
1-1
Introduction
Flame Ionization Detection (FID)
Flame Ionization
Detection (FID)
A Flame Ionization Detector (FID) measures organic compounds by
utilizing a flame produced by the combustion of hydrogen and air (see
Figure 1–1). When hydrocarbons in the sample are introduced to the
detection zone, ions are produced by the following reaction:
RH + O → RHO+ + e– → H2O + CO2
where:
R = carbon compound
A collector electrode with a polarizing voltage is also located within the
detector chamber, and the ions produced by this reaction are attracted to it.
As the ions migrate towards the collector, a current is produced which is
directly proportional to the concentration of hydrocarbons introduced to
the flame. This current is then amplified and sent to a microprocessor.
The FID has a wide dynamic range. The effective dynamic range can be
further expanded by use of a dilutor kit which reduces very high volatile
organic compound (VOC) concentrations to within the dynamic range (or
even linear range) of the analyzer. The dilutor kit can also be used to enrich
oxygen deficient samples by adding ambient air that is rich in oxygen
(20.9% usually). Low oxygen can affect the characteristics of the hydrogen
flame, causing readings to be artificially elevated and possibly extinguishing
the flame. As a general rule of thumb, greater than 16% oxygen is required
to support the flame. If underground gases or samples in gas bags are to be
measured by an FID, it is advised that a dilutor be used to combat the
problem.
1-2
TVA2020 Instruction Manual
Thermo Fisher Scientific
Introduction
Flame Ionization Detection (FID)
EXHAUST
METER
IGNITION
FILAMENT
COLLECTOR
ELECTRODE
JET
AIR SAMPLE
FUEL (H2)
Figure 1–1. Typical Flame Ionization Detector
Benefits of Flame
Ionization Detection
Thermo Fisher Scientific
Benefits of Flame Ionization Detection include:
●
Wide dynamic and linear range
●
High sensitivity to hydrocarbon vapors (including methane)
●
Very stable and repeatable response
●
Virtually unaffected by ambient levels of CO, CO2, and water vapor
TVA2020 Instruction Manual
1-3
Introduction
Photoionization Detection
Photoionization
Detection
A Photoionization Detector (PID) consists of an ultraviolet (UV) lamp of a
specific energy and an ionization chamber (see Figure 1–2). Compounds
passing through the chamber are excited by photons of UV energy and
ionized according to the following equation:
R + hυ → R+ + e–
where:
R = most organic/inorganic compounds
These ions are attracted to a collecting electrode, producing a current
proportional to the concentration of the compound.
Whether or not a compound can be detected by a PID depends upon the
energy required to remove an electron from the compound (its ionization
potential). If the lamp energy is greater than the compound’s ionization
potential, the PID will detect it. The lamp in the TVA2020 is 10.6 eV.
Because of its smaller dynamic range (0-2000 ppm), the PID is not the
detector of choice for measuring high concentrations of vapors. A PID is
also more susceptible to interference from water vapor than a FID.
However, as a PID does not require hydrogen or oxygen, it is the detector
of choice when fuel is limited or unavailable, or when ambient oxygen
concentrations are low. The PID is also very sensitive to aromatic and
chlorinated compounds, and can even measure some inorganic compounds
that the FID does not detect at all (ammonia, carbon disulfide, carbon
tetrachloride, chloroform, ethylamine, formaldehyde, and hydrogen sulfide,
to name a few).
1-4
TVA2020 Instruction Manual
Thermo Fisher Scientific
Introduction
Photoionization Detection
UV SOURCE
LAMP
IONIZATION CHAMBER
WINDOW
METER
SAMPLE OUT
SAMPLE IN
COLLECTING
ELECTRODE
Figure 1–2. Typical Photoionization Detector
Benefits of
Photoionization
Detection
Thermo Fisher Scientific
Benefits of Photoionization Detection:
●
High sensitivity to aromatics, unsaturated hydrocarbons and
chlorinated hydrocarbons
●
Ability to measure some inorganic gases
●
Very simple operation
●
No support gases required
●
Non-destructive detector allows sample to be recovered
TVA2020 Instruction Manual
1-5
Introduction
Dual Detectors
Dual Detectors
The benefits of each individual detector are very clear: both the FID and
the PID have their advantages and disadvantages. However, with either
detector alone, the number of organic and inorganic vapors that one can
detect is limited by the measurement capabilities of that detector.
With the TVA2020, users can obtain more complete information about
organic and inorganic vapors more quickly and easily than with single
detector technology alone.
Since both detectors may be displayed and logged simultaneously, the
relative response of the two detectors may give some clues about the
identity of the compound being measured (see Figure 1–3). For instance,
the PID does not respond to methane at all, but the FID responds very
well. A high FID reading with virtually no PID response might indicate the
presence of methane. Consequently, PIDs respond very well to some
inorganic gases that FIDs cannot detect. A high PID reading with no FID
reading might suggest the presence of an inorganic compound. With
readings from both detectors readily available, the TVA2020 can help a
user make decisions about the type of compound present and which
detector reading to use.
1-6
TVA2020 Instruction Manual
Thermo Fisher Scientific
Introduction
Dual Detectors
PID 00000 PPM
FID 00000 PPM
%
AMPLIFIER
METER
EXHAUST
F LAME ARRESTOR
F ID
TVA2020
COLLECTOR
ELECTRODE
PID
IGNITION
FILAMENT
JET
LAMP
VENT
AIR SAMPL E OUT
COLLECTOR
ELECTRODE
AIR SAMPLE IN
AIR SAMPLE IN
HYDROGEN SUPPLY
Figure 1–3. TVA2020 Dual Detector Configuration
Benefits of Dual
Detectors
Thermo Fisher Scientific
Benefits of Dual Detectors:
●
Cost-effective packaging
●
Detector response ratios can help characterize compounds
●
Enhanced analytical capability derived from simultaneous detection
TVA2020 Instruction Manual
1-7
Introduction
Concentration Calculation and Calibration
Concentration
Calculation and
Calibration
The concentration calculation is defined as the process that transforms a
detector count into a displayed final concentration. The process is as
follows:
DETECTOR COUNT TRANSLAT ED INTO A STANDARD DET ECT OR CONCENT RAT ION
USING A DET ECT OR COUN T VS. DETECTOR CONCENTRATION CALIBRATION CURVE.
STANDARD DETECTOR CONCENTRATION IS CORRECTED TO A SPECIFIC GAS USING
T HE INSTRUMENT RESPON SE FACTOR.
SPECIFIC GAS CONCENT RAT ION IS BACKGROUN D C ORRECTED (IF ENABLED)
INSTRUMENT RESPONSE FACTOR AND BACKGROUND CORRECTED C ONCENTRAT ION IS RF CORRECTED USING THE CURRENT ROUTE ENTR Y RF (IF ANY)
FINAL CONC ENTR ATION READING
1-8
TVA2020 Instruction Manual
Thermo Fisher Scientific
Introduction
Standard Specifications
Standard
Specifications
Thermo Fisher Scientific
Table 1–1 lists the standard specifications for the TVA2020.
Table 1–1. TVA2020 Product Specifications
Item
Description
Accuracy
PID Instrument—±20 % of reading or ±0.5 ppm, whichever is
greater, from 0.5 to 2,000 ppm. Accuracy listed is achieved
using isobutylene with a 1-point calibration at 1,000 ppm
(including drift) at the temperature and humidity of the
calibration.
FID Instrument—±10% of reading or ±1.0 ppm, whichever is
greater, from 1.0 to 10,000 ppm. Accuracy listed is achieved
using methane with a 1-point calibration in the range from 100
to 500 ppm (including drift) at the temperature and humidity of
the calibration.
±10% of reading from 3,000 to 30,000 ppm with a 1-point
methane calibration at 15,000 ppm.
Repeatability
PID Instrument—1% at 100 ppm of isobutylene
FID Instrument—2% at 500 ppm of methane
Dynamic range
PID Instrument—0.5 to 2,000 ppm of isobutylene
FID Instrument—1.0 to 30,000 ppm of methane
Linear range
PID Instrument—0.5 to 2,000 ppm of isobutylene
FID Instrument—1.0 to 30,000 ppm of methane
Minimum detectable level
The minimum detectable level is defined as seven times the
standard deviation of the peak-to-peak noise.
PID Instrument—0.5 ppm of isobutylene
FID Instrument—0.5 ppm of methane
Response time using close
area sampler
PID Instrument—Less than 3.5 seconds for 90% of final value,
using 500 ppm of isobutylene
FID Instrument—Less than 3.5 seconds for 90% of final value,
using 10,000 ppm of methane
Recovery time using close
area sampler
PID Instrument—Less than 4.5 seconds to return to 10% of
base line from 500 ppm of isobutylene
FID Instrument—Less than 4.5 seconds to return to 10% of
base line, using 10,000 ppm of methane
Response time using
charcoal filter adapter
PID Instrument—Less than 15 seconds for 90% of final value,
using 500 ppm of isobutylene
FID Instrument—Less than 15 seconds for 90% of final value
from 10,000 ppm of methane
Recovery time using
charcoal filter adapter
PID Instrument—Less than 20 seconds to return to 10% of
original value, using 500 ppm of isobutylene
FID Instrument—Less than 20 seconds to return to 10% of
original value, using 10,000 ppm of methane
TVA2020 Instruction Manual
1-9
Introduction
Standard Specifications
1-10
TVA2020 Instruction Manual
Data storage interval
Auto Mode—1 per second to 1 per 999 minutes, user
selectable VOC or FE Mode - 2 to 30 seconds, user-selectable
Item
Description
Sample flow rate
1 liter/minute, nominal, at sample probe inlet
Battery
The battery can be fully charged in less than 10 hours. The
battery operating time is 10 hours minimum at 0 °C (32 °F). Use
of the backlight on the probe display shortens battery life. The
battery is replaceable by accessing the inside of the instrument.
WARNING: Do not replace battery in an area classified as
hazardous due to presence of flammable gases or vapors.
Battery charger
The battery charger is a separate unit capable of operating the
analyzer while simultaneously charging the internal battery. An
adapter cable is provided to charge the battery separate from
the analyzer. The charger can charge a fully discharged battery
in a maximum of 10 hours. Charging takes 14 hours if
performed while the instrument is operating. Charger capable
of operation from 90 Vac to 260 Vac, 50/60Hz, with regional
plugs.
WARNING: Do not operate battery charger in an area
classified as hazardous due to presence of flammable gases or
vapors.
PID lamp life
Greater than 2000 hours, with normal cleaning
FID life
Greater than 5000 hours
Audio output level
Greater than 90 dB at 3 feet
Gas cylinder capacity
Pressure—15.3 MPa at 25 °C (2200 psi at 77 °F) maximum
Empty—85 cc (5.19in3)
Hydrogen supply operating
time
10 hours of continuous operation, starting from a cylinder
charged up to 15.3 MPa (2200 psi)
Instrument Enclosure
Description
The analyzer enclosure and front panel are made from a
chemically resistant thermoplastic material or equivalent. Can
be decontaminated (10% chlorine solution)
Electrical/communication
connections
Probe connections are weather-tight.
WARNING: Charger and USB connections are not allowed in
an area classified as hazardous due to presence of flammable
gases or vapors.
Mechanical connections
A quick connect fitting is used for the sample line connection.
Portability
A removable shoulder strap is provided with the instrument.
Tool kit
An accessory tool kit is provided with each instrument. The kit
contains special tools for accessing the FID and PID
compartments and special flow restrictors for calibrating the
pump flow.
Approximate mass
Analyzer: FID only—9.2 lb Dual—9.4 lb)
Probe Assembly: Standard Probe—0.5 lb Enhanced Probe—1.5
lb
Thermo Fisher Scientific
Introduction
External Influences
Bluetooth
Wireless communications module certified to Bluetooth® ver2.0
Support for SPP (Serial Port Profile)
Transit Class 2 (typical range of 6’)
GPS
External
Influences
Frequency
1575 MHz
Channels
up to 12 simultaneously
Update rate
1 Hz
This product is intended for use in indoor and outdoor environments as a
portable instrument carried by a user, as specified in Table 1–2. The same
environmental conditions also apply to the sample stream being monitored.
Table 1–2. TVA2020 External Influences
External Influences
Reference Operating
Conditions
Normal Operating
Conditions
Operative Limits
Transportation and
Storage Limits
Ambient temperature
23 ± 2 °C
-10 to +45 °C
-10 and +45 °C
-20 to +60 °C
-4 and 140 °F
Ambient pressure
860 to 1060 mbar
70 to 108 kPa
Relative humidity
50% ± 10%
FID: 20 to 95%
PID: 20 to 70%
noncondensing
Radiated Susceptibility
None
20 to 108 kPa
15 and 95%
noncondensing
0 to 100%
3 V/m
80 to 2700 MHz
Conducted susceptibility
Not applicable, battery operated
Conducted emission
Not applicable, battery operated
Radiated emission
Use FCC/Bluetooth
requirement
ESD Sensitivity
>6000 Volts
Battery charger supply
voltage
120 or 230 ±1% Vac
100 to 240 Vac
100 to 240 Vac
Not applicable
Battery Charger supply
frequency
50/60 Hz
±0.5 Hz
50/60 Hz
50/60 Hz
Not applicable
Thermo Fisher Scientific
TVA2020 Instruction Manual
1-11
Introduction
Product Safety Specifications
Product Safety
Specifications
Table 1–3 lists the specifications for the TVA2020. Refer to Figure 1–4 for
Interconnection Control Drawing.
Table 1–3. TVA2020 Product Safety Specifications
Testing Laboratory, Types of Protection,
and Area Classification
Conditions of Classification
FM: intrinsically safe for Class I, Division 1,
Groups A, B, C, and D
Temperature Class T4
Figure 1–4. Interconnection Control Drawing
1-12
TVA2020 Instruction Manual
Thermo Fisher Scientific
Chapter 2
Hardware and Startup
For a description of the instrument functions, instrument connections, and
how to start the instrument, see the following topics:
Overview
●
“Overview” on page 2-1
●
“Instrument Functions” on page 2-3
●
“Using the Instrument” on page 2-4
●
“Instrument Connections” on page 2-4
●
“Instrument Sidepack Display” on page 2-6
●
“Instrument Sidepack Keypad” on page 2-7
●
“Control Menu” on page 2-9
●
“Quick Start Procedure” on page 2-10
The vapor concentration may be read immediately on either of two
displays—one mounted directly on the optional enhanced sample probe
and the other on the instrument sidepack itself (see Figure 2–1). Vapor
concentration can be displayed on both displays in parts per million (ppm)
or percent concentration (%). The data displayed may also be collected and
saved in analyzer memory and downloaded to a personal computer for
analysis. The optional Bluetooth device will continuously output the
concentration data for use with a third party hand-held device.
Through the sidepack keyboard, choose the mode of operation, select
concentration units for the display, set alarm thresholds, select data
collection mode, and change setup (configuration) parameters.
This unit is shipped with the battery installed. The unit is ready for
operation upon completion of setup, calibration, and charging.
Thermo Fisher Scientific
TVA2020 Instruction Manual
2-1
Hardware and Startup
Overview
Figure 2–1. Instrument Sidepack Display
2-2
TVA2020 Instruction Manual
Thermo Fisher Scientific
Hardware and Startup
Instrument Functions
Instrument
Functions
This analyzer functions in any of four modes:
●
RUN
●
SETUP
●
INFO
●
MEMORY
In the RUN mode, the instrument automatically displays its measured
values in units of ppm or %. The RUN mode may be operated either as
survey only, in which the instrument displays measured values but does not
store any data, or survey and log, in which the instrument displays
measured values and also stores the information in memory.
In SETUP mode, you can enter or select operational parameters, such as
calibration values, alarm levels, operator ID, datalogging method and
interval, date, and time. This may be performed locally by using the
analyzer keypad or remotely by using the USB connection to a personal
computer (PC).
In INFO mode, you can review operational parameters entered or selected
in SETUP mode as well as instrument serial number, Bluetooth friendly
name, battery status, GPS coordinates, etc.
In MEMORY mode, you can download data stored within the TVA2020
to a PC for analysis and printing, upload route list, calibration, and
configuration parameters from a PC to the TVA2020, clear data memory,
and update instrument firmware.
Each of the four modes is explained in detail later in Chapter 3, “Display
Menus”.
Thermo Fisher Scientific
TVA2020 Instruction Manual
2-3
Hardware and Startup
Using the Instrument
Using the
Instrument
While operating this instrument in the field, you normally carry the
TVA2020 at your side using the shoulder strap or in a backpack (not
supplied). With the pump on, detector(s) on, and the unit warmed up, you
monitor the area of concern. As soon as the instrument analyzes a sample,
the sidepack displays concentration of the vapor. The display on the
optional enhanced probe duplicates the vapor concentration on the
sidepack display. Using the enhanced probe, you can toggle the display
between detector types by pressing the SELECT button on the probe,
configure to log the survey data by pressing the MENU button, and
backlight the LCD display by pressing the lamp button. The concentration
data is also streamed out from the optional Bluetooth device, if installed
and turned on.
WARNING Charger and USB connections are not allowed in an area
classified as hazardous due to presence of flammable gases or vapors. ▲
WARNING To prevent a potential explosion, do not operate the
instrument with the PID compartment open or FID detector cap
removed. ▲
Startup
To place the TVA2020 in Startup mode, press and hold the ON key for 2
seconds until you hear a beep. The instrument will display a Please Wait
message, shortly after, the MAIN MENU screen is displayed. In this screen
you may scroll to the various different menu selections.
MAIN
MENU
1=Run
2=Setup
3=Info
4=Memory
Instrument
Connections
There are four external instrument connections on the TVA2020, as shown
in Figure 2–2. The umbilical attached to the probe consists of two
connections, an electrical cable with locking connector and a sample line
with locking fitting.
Two additional connections—battery charger input and USB interface—
are located on the bottom of the unit, below the keypad. All mechanical
connections are keyed for easy orientation.
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Hardware and Startup
Instrument Connections
Carrying Strap
Connection
Press probe lines into groove to
secure after making connections
to instrument.
Panel
Probe Sample Connection
FID Cap
Probe
Electrical
Connection
Charger
Connection
USB Connection
Figure 2–2. TVA2020 Instrument Connections
WARNING Charger and USB connections are not allowed in an area
classified as hazardous due to presence of flammable gases or vapors. ▲
WARNING To prevent a potential explosion, do not operate the
instrument with the PID compartment open or FID detector cap
removed. ▲
Thermo Fisher Scientific
TVA2020 Instruction Manual
2-5
Hardware and Startup
Instrument Sidepack Display
Instrument
Sidepack
Display
The liquid crystal display (LCD), in the instrument sidepack, has four 16character lines for three types of displays (MENU, ENTRY, and RUN). In
menu displays, the whole screen is normally dedicated to the menu. In entry
displays, the screen provides prompts and instructions for inputting new
data. The normal run display consists of the live measurement data on lines
1 and 2 and menu items on lines 3 and 4. Other display information
appears as you page through various menus.
●
In Menu Display, the whole screen is normally dedicated to the menu.
MAIN
MENU
1=Run
2=Setup
3=Info
4=Memory
●
In Entry Display, the screen provides prompts and instructions for
entering new data.
Enter High Ceil:
P&F: 005000ppm
Up/Dn=Next unit
Enter=Accept
●
The normal Run Display consists of the live measurement data in Lines
1 and 2 and menu items on lines 3 and 4.
PID:
450ppm
FID:
500ppm
BLD___________________
Press char key
Other display information appears as you page through various menus.
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Hardware and Startup
Instrument Sidepack Keypad
Instrument
Sidepack
Keypad
The keypad, as shown in Figure 2–3, has 19 keys, some of which are dual
function. When you press a key, the screen displays the selection. When
you make a selection that creates or changes a parameter, you must then
press the ENTER key. The left/right arrow keys move the character entry
position. The up/down keys make page selections or switch from ppm or
% to another reading. Table 2–1 shows the functions of all keys.
Figure 2–3. Keypad
Note To turn the instrument ON, press and hold the on ON key until the
speaker sounds and display flashes. ▲
Note To activate OFF, CONTROL, EXIT, and ENTER functions, press
and HOLD the key for approximately 1/2 second. ▲
Thermo Fisher Scientific
TVA2020 Instruction Manual
2-7
Hardware and Startup
Instrument Sidepack Keypad
Table 2–1. Keys and Functions
2-8
TVA2020 Instruction Manual
Key
Function
ON
The ON key enables power from the battery to the instrument.
OFF
The OFF key disables power from the battery to the instrument.
CONTROL
The CONTROL key is multi-function and is used to turn the pump, PID,
and FID, Bluetooth and GPS on or off, and to ignite the FID.
Note: Value displayed is opposite of existing status. If pump displays
“OFF”, you would press the 1 key to turn it off.
EXIT
The EXIT key clears any entry made in error or bypasses information
that you do not want to change, and clears error or warning screens.
ENTER
The ENTER key has three functions:
1. Press ENTER if you have typed one or more characters and
wish to keep that information.
2. Press ENTER to respond to a menu question.
3. Press ENTER instead of entering the logging mode from the
enhanced probe to initiate logging.
Left/Right Arrows
The left and right arrow keys move character entry positions.
Up/Down Arrows
The up and down arrow keys make page selections or scroll through
options in SETUP entry screens and info screen.
Alphanumeric
The alphanumeric keys enable you to type letters or numbers into
various menus. If a display asks for a number only, simply press the
desired key. Two steps are required to type an alphanumeric character.
First, press the key with the desired letter or number. The screen then
displays a selection prompt at the bottom in which 1 = first letter, 2 =
second letter, 3 = third letter, and 0 = number. Press the appropriate
key to execute the selection. Three uses:
• Select menu options
• Enter numbers, 0-9, using single keystroke
• Enter alphanumeric data, A-Z, 0-9, SPACE, using 2
keystrokes per character
Thermo Fisher Scientific
Hardware and Startup
Control Menu
Control Menu
The Control Menu is used for turning the sampling pump on and off,
turning the PID lamp and FID on and off, for initiating gas ignition of
FID, and Bluetooth and GPS options.
CONTROL MENU
1=Pump on
2=FID on
3=Ignt
4=PID on
5=More
The CONTROL MENU screen has five options:
1. Turn Pump ON/OFF
2. Turn FID ON/OFF
3. Ignite FID
4. Turn PID OFF/ON
5. More (Bluetooth and GPS)
Selecting Option 1 toggles the pump on or off.
Selecting Option 2 toggles the FID on or off. In the RUN mode, when the
FID is off, dashes will appear instead of a reading and all FID alarms are
overridden.
Selecting Option 3 initiates the FID flame ignition sequence, which
momentarily turns on the ignite coil and simultaneously reduces the pump
flow.
Selecting Option 4 toggles the PID on or off. In the RUN mode, when the
PID is off, dashes will appear instead of a reading, and all PID alarms are
overridden.
Selecting Option 5 toggles the next screen, if Bluetooth or GPS are
installed. If neither is installed, option 5 does not display.
Thermo Fisher Scientific
TVA2020 Instruction Manual
2-9
Hardware and Startup
Quick Start Procedure
CONTROL MENU
1=BT off
2=GPS off
3=More
After running the initial startup diagnostic, the Control menu can be
accessed at any time.
Quick Start
Procedure
Before starting the unit, perform the following steps:
1. Charge battery.
2. Connect sample probe.
3. Fill/install hydrogen tank (which starts hydrogen flowing).
To start the unit, execute the following procedure:
4. Press ON until the speaker sounds and the display flashes
(approximately 1 second).
5. Press CONTROL.
6. Press 3 to ignite.
7. Press 2 = Setup.
8. Press 1 = Calibrate.
9. Press 6 = Configure.
10. Press 2 = Span Concentration.
11. Enter Span Concentration for calibration gas being used and press
ENTER to accept.
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Hardware and Startup
Quick Start Procedure
Note If FID only, enter concentration of methane. If dual, enter
concentration of both gases. ▲
12. Press 1 = Zero.
13. Press 1 = Both.
14. Press ENTER = start.
15. Challenge analyzer with zero gas sample.
16. Wait to stabilize.
17. Press ENTER to accept.
18. Press 2 = Span.
19. (PID 1st) Press 2 = PID.
20. Press ENTER = start.
21. Challenge analyzer with isobutylene span gas and wait for readings to
stabilize.
22. Press ENTER to accept.
23. Press 2 = Span.
24. Press 3 = FID.
25. Press ENTER = Start.
26. Challenge analyzer with methane span gas and wait for readings to
stabilize.
27. Press ENTER = Accept.
Thermo Fisher Scientific
TVA2020 Instruction Manual
2-11
Hardware and Startup
Quick Start Procedure
28. Press 4 = Response Factor.
29. Confirm that Response Factor says “RF0:DEFAULT”
30. Press EXIT 3 times to main menu.
31. Press 1 = Run.
You are now in the survey mode.
Note To perform more sophisticated operations, you will need to read the
rest of the manual. ▲
To power down this instrument, simply press the OFF key. You must also
unscrew the hydrogen tank to avoid depleting the tank supply.
2-12
TVA2020 Instruction Manual
Thermo Fisher Scientific
Chapter 3
Display Menus
This chapter describes the main menu display and menu-driven software.
For more detail, see the following topics:
Main Menu
Structure
●
“Main Menu Structure” on page 3-1
●
“Run Mode” on page 3-4
●
“Setup Menu” on page 3-9
●
“Calibration Settings” on page 3-9
●
“Alarm Levels” on page 3-10
●
“Log Methods” on page 3-15
●
“Passcode Protection” on page 3-23
●
“Other Settings” on page 3-24
●
“Information Menu” on page 3-29
●
“Memory” on page 3-30
The display on the TVA2020 analyzer is a menu-driven device. The various
menus prompt you to select or enter information. With various key strokes,
you can accomplish all necessary setup (configuration) and operational
tasks. For more detail, see the following topics:
MAIN
MENU
1=Run
2=Setup
3=Info
4=Memory
Thermo Fisher Scientific
TVA2020 Instruction Manual
3-1
Display Menus
Main Menu Structure
Whenever you turn on the TVA2020, a power-up self test is performed
and warning screens are displayed if any errors are found. Please refer to
“Warning Messages” on page 6-6. If errors are detected, use the EXIT key
to clear error message, then MAIN MENU is displayed. When you press
the corresponding number key, as described in Table 3–1, the desired
menu and the associated display or menu appear automatically.
Table 3–1. Main Menu Selection and Functions
Key
3-2
TVA2020 Instruction Manual
Function
1 = RUN
Use this selection to assign tags to specific surveys and to view/log
analysis of organic/inorganic compounds. If the optional Bluetooth
module is active, the instrument must be in RUN mode to send
commands and capture data. (See “Bluetooth Communications” in the
Options section of this manual.)
2 = SETUP
This menu contains configuration procedures and menu structure for
performing calibrations, entering ID numbers, setting alarm levels,
selecting log modes, entering response multipliers and setting
time/date.
3 = INFO
This is a view-only menu structure that displays various instrument
diagnostic information.
4 = MEMORY
Use this menu to put instrument into USB memory device mode to
download/upload information to/from a personal computer, to perform
a remote setup from a personal computer, to clear memory, or to
update firmware.
Thermo Fisher Scientific
Display Menus
Main Menu Structure
Once you are familiar with the various menus and know where to enter
specific information, you may want to use a short cut method of tracking
the menu structure. The following figure shows the complete menu
structure for the TVA2020 Analyzer.
RUN
SETUP
INFO
1. CALIBRATION
1. ZERO
2. SPAN
3. BACKGROUND
4. RF (response factors)
5. FLOW
1. FLOW 1
2. FLOW 2
3. FLOW 3
4. CALC COEF
6. CONFIGURE
1. NUMBER OF SPAN POINTS
2. SPAN CONCENTRATION
▼(down arrow)
1. BACKGROUND CORRECT
2. RF CALC MODE
▼(down arrow)
1. ACCEPT MODE
2. SAVE MODE
2. ALARM
1. STEL
2. LOW CEILING
3. HIGH CEILING
3. LOG
1. NONE
2. AUTO
3. VOC/FE
4. CUSTOM
4. PASSCODE
1. NEW PASSCODE
2. ENABLE
3. DISABLE
5. OTHER
1. USER ID
2. DATE
3. TIME
4. USER OPTIONS
1. KEY CLICK
2. DISPLAY DELAY
MEMORY
1. USB MODE
2. CLEAR LOGGING MEMORY
3. UPDATE FIRMWARE
1. CONNECT USB
2. COPY FILE
3. WAIT REBOOT
Figure 3–1. TVA2020 Menu Structure
Thermo Fisher Scientific
TVA2020 Instruction Manual
3-3
Display Menus
Run Mode
Run Mode
How the instrument functions in the RUN mode is governed by the
selection made in the SETUP/Log menu. The LOG menu selects how data
is stored in the instrument memory. There are four possible choices in the
LOG mode as defined in “Log Methods” on page 3-15. In addition, if the
optional Bluetooth module is active, data automatically streams out
continuously from the instrument. Data will only stream out of the
instrument while in the RUN mode. The data will always stream at in the
same format independent of the log configuration. (See “Bluetooth
Communications” in the Options section for more information.)
The TVA2020 performs accurately only after it has been properly set up
(configured).
The RUN mode displays (as governed by the LOG Selection) are:
FID-NONE
FID:
1376ppm
Exit=Stop
FID-AUTO, VOC, or F.E.
FID:
1376ppm
Sampling:
3sec
Exit=Stop
PID/FID-NONE
PID:
FID:
1042ppm
1376ppm
Exit=Stop
PID/FID-AUTO, VOC, or F.E.
PID:
1042ppm
FID:
1376ppm
Sampling:
3sec
Exit=Stop
You should install the hydrogen tank and wait 2-3 minutes before entering
the RUN mode. Upon entering the RUN mode, the pump will
automatically turn ON and the FID will ignite.
Note For best performance, the instrument must be ON and warmed up
for approximately 30 minutes with the FID flame ignited throughout the
warmup period. If the instrument is PID equipped and the PID is to be
used, the lamp must be ON throughout the warmup period. ▲
3-4
TVA2020 Instruction Manual
Thermo Fisher Scientific
Display Menus
Run Mode
Accessing the Run
Menu
Run: Log None
From the MAIN MENU display, press 1=Run.
Whenever the TVA2020 is in the RUN mode with Log None as the
logging selection, the instrument operates as a survey tool only. The
readings on the probe display and instrument display show the live reading
for the samples at that time. No logging action is taking place. Any alarms
that are set will function normally.
FID
FID: 24950ppm
Exit=Stop
Run: Log Auto
PID/FID
PID:
FID:
1.1ppm
2.49%
Exit=Stop
Whenever the TVA2020 is in the RUN Mode with Log Auto as the
logging selection, the instrument operates as an automatic survey tool that
logs its readings into memory at an interval selected in the Setup Menu.
After the 1=Run key is pressed, the first screen viewed is the one shown:
FID
FID: 24950ppm
---------------Press char key
PID/FID
PID:
1.1ppm
FID:
2.49%
---------------Press char key
The tag information should be typed in before starting. Enter the tag
information in the space provided (up to 16 characters).The tag may be left
blank if desired.
Thermo Fisher Scientific
TVA2020 Instruction Manual
3-5
Display Menus
Run Mode
FID
FID: 24950ppm
A--------------0=1
1=A 2=B 3=C
PID/FID
PID:
1.1ppm
FID:
2.49%
A--------------0=1
1=A 2=B 3=C
Once the tag information is entered, press the ENTER key. The screen
then changes to the next display. The instrument is now ready to start
logging. The screen displays live readings and the tag name. However, no
logging takes place until you enter the logging mode from the enhanced
probe or press the ENTER key on the instrument.
FID
FID: 24950ppm
BLD01SITE5
Enter=Start log
PID/FID
PID:
1.1ppm
FID:
2.49%
BLD01SITE5
Enter=Start log
Press ENTER or initiate the logging mode from the enhanced probe to
start the automatic logging. The instrument counts down from the time
selected in the SETUP/Log menu and stores the reading at the end of the
count down. For instance, if 12 seconds was selected as the logging time,
the instrument will count down from 12 and display
11,10,9,8,7,6,5,4,3,2,1,STORE. The instrument logs into memory either
the highest, average, or last reading during the countdown, as configured in
the SETUP/Log menu.
FID
FID: 24950ppm
Sampling:
3sec
Exit=Cancel
PID/FID
PID:
1.1ppm
FID:
2.49%
Sampling:
3sec
Exit=Cancel
This action continues until the instrument shuts down due to low battery,
or the EXIT key is pressed, or the log memory is full.
Run: Log VOC
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TVA2020 Instruction Manual
Whenever the TVA2020 is in the RUN mode with Log VOC as the
logging selection, the instrument operates as a manual survey tool that logs
its readings into memory whenever you initiate logging. When the 1=Run
Thermo Fisher Scientific
Display Menus
Run Mode
key is pressed, the first screen viewed is the one shown below. The tag
information should be typed. The tag may be left blank if desired.
Note Tag information can only be entered using the sidepack keypad. ▲
FID
FID: 24950ppm
---------------Press char key
PID/FID
PID:
1.1ppm
FID:
2.49%
---------------Press char key
The tag information should be typed in before starting. Enter the tag
information in the space provided (up to 10 characters).The tag may be left
blank if desired.
FID
FID: 24950ppm
TA-------------0=3
1=G 2=H 3=I
PID/FID
PID:
1.1ppm
FID:
2.49%
TA-------------0=3
1=G 2=H 3=I
Once the tag information is entered, press the ENTER key. The screen
then changes to the next display. The instrument is now ready to start
logging. The screen displays live readings and the tag name but no logging
takes place until you either enter the logging mode from the enhanced
probe or press the ENTER key again on the instrument.
FID
FID: 24950ppm
TAG
Enter=Start log
Thermo Fisher Scientific
PID/FID
PID:
1.1ppm
FID:
2.49%
TAG
Enter=Start log
TVA2020 Instruction Manual
3-7
Display Menus
Run Mode
FID
FID: 24950ppm
SAMPLING:
3 SEC
Exit=Cancel
PID/FID
PID:
1.1ppm
FID: 24950ppm
SAMPLING:
3 SEC
Exit=Cancel
Press ENTER or initiate the logging mode from the enhanced probe to
start the VOC logging sequence. After the instrument counts down for the
time selected in the SETUP/Log menu, the word Save appears. When
confirmed, the instrument logs into memory either the highest average or
last reading achieved during the countdown sample. After the information
is stored into memory, the display returns to live measurements and
prompts for a new tag. Each VOC log must be done manually and
individually.
FID
FID: 24950ppm
Save above smp1?
1=Yes
2=Again
Run: Log F.E.
PID/FID
PID:
1.1ppm
FID:
2.49%
Save above smp1?
1=Yes
2=Again
The operation of the Log F.E. mode is menu driven from the hand-held
probe display and requires the use of the optional TVA2020 Enhanced
Probe. Whenever the TVA2020 is in the RUN mode with Log F.E. as the
logging selection, the instrument logs its readings based on a preconfigured route file.
Use the following procedure for use with Fugitive Emissions monitoring.
1. Create a monitoring route using a Fugitive Emissions personal
computer software program as described in Appendix B, “Text Data
Formats”.
2. Copy the route file to the TVA2020 by overwriting the ROUTE.TXT
file in the instrument flash with the one created. It must be named
ROUTE.TXT for the instrument to recognize it. After exiting the USB
mode, the instrument reads the properly named files from flash into the
processor memory.
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Setup Menu
3. Log readings by following the monitoring route shown on the
TVA2020 display.
4. At the end of the monitoring route, copy the logged readings to the
personal computer.
Setup Menu
The Setup Menu (configuration) of the TVA2020 is the most important
step in obtaining accurate gas measurements. The Setup Menu contains
configuration procedures and menu structure for performing calibrations,
entering ID numbers, setting alarm levels, selecting log modes, entering
response multipliers and setting time/date.
From the MAIN MENU display, press 1=Run.
SETUP MENU
1=Calib
2=Alarm
3=Log 4=Passcode
5=Other
During instrument setup, you must set parameters as follows:
5. Calibration Settings
6. Alarm Levels
7. Datalogging Setup
8. Passcode
9. Other
Calibration
Settings
The Calibration Menu is used to calibrate the instrument. For more
detailed information on calibration, see Chapter 4, “Calibration”.
From the MAIN MENU display, press 2-Setup.
From the SETUP MENU display, press 1=Calib.
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Alarm Levels
CALIB MENU
1=Zero
2=Span
3=Backgnd 4=RF
5=Flow
6=Cfg
1. Zero the instrument
2. Calibrate the reference point(s) using known span gas
3. Take background reading
Note For most monitoring, background is set to zero. Use if regulations or
permits require/allow background elimination. ▲
4. Set instrument response factors if necessary
5. Calibrate the flow sensor
6. Configure
a. Calibrate the reference point(s) using known span gases. The
TVA2020 can be configured for as many as nine different span gas
values (2=Span).
Alarm Levels
The TVA2020 is supplied with three user-configurable alarms — STEL
(short term exposure limit), Low Ceiling, and High Ceiling. When any of
these alarms is exceeded, an alarm message appears on the sidepack display
and probe display and an alarm tone is generated. Press EXIT to
acknowledge the alarm message and sounder. Once acknowledged, the
display returns to the live measurement with an upper case letter
representing the alarm or alarm combination appearing to the right of the
display.
ALARM LEVELS
1=STEL
2=Low Ceiling
3=High Ceiling
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Alarm Levels
The three types of user configurable alarms are:
Table 3–2. Alarm Configurations
Alarm Type
Description
STEL:
The Short Term Exposure Limit alarm indicates that measurements
averaged over a running 15-minute interval have exceeded the set
alarm limit. Once this alarm is acknowledged, the letter S appears to
the right of the live measurement for the appropriate detector.
Low Ceiling:
This alarm is a warning that a lowest level threshold has been
exceeded. Once acknowledged, the letter L appears to the right of the
live measurement for the appropriate detector.
High Ceiling:
This alarm is a warning that a second, higher level, threshold has been
exceeded. Once this alarm is acknowledged, the letter H appears to
the right of the live measurement for the appropriate detector. The FID
maximum setting is 30000 ppm.
The three alarm messages appear on the instrument display as follows:
==== ALARM! ====
STEL alarm level
alarm exceeded!
Exit=Clr
PID:
FID:
==== ALARM! ====
Low ceiling
alarm exceeded!
Exit=Clr
PID:
FID:
==== ALARM! ====
High ceiling
alarm exceeded!
Exit=Clr
PID:
FID:
1039ppm
2180ppm
S
S
Press char key
1039ppm L
2180ppm L
Press char key
1039ppm H
2180ppm H
Press char key
Note To display and change the alarm menus, the instrument must be ON
but does not have to be warmed up. ▲
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Alarm Levels
Accessing the
Alarm Menu
Use the following procedure to access the alarm menu.
1. From the MAIN MENU display, press 2=Setup.
2. From the SETUP MENU display, press 2=Alarm and follow the
procedures for the appropriate alarm settings.
STEL Level Alarm
Use the following procedure to access the STEL level alarm.
1. From the ALARM LEVELS display, press 1=STEL. The previous alarm
settings for STEL alarm are displayed.
FID
FID: 100.0ppm
STEL Alarm
Enter=New Value
PID/FID
PID: 100.0ppm
FID: 100.0ppm
STEL:
1=Both
2=PID
3=FID
2. To change the alarm level to a new value, press ENTER on a single
detector instrument or 1, 2, or 3 on a dual detector instrument.
FID
PID/FID
Enter STEL:
FID: 100.0ppm
Up/Dn=Next Unit
Enter=Accept
Enter STEL:
P&F: 100.0ppm
Up/Dn=Next Unit
Enter=Accept
Use the up and down arrow keys to select ppm or %, and decimal point
position, then type the numeric value for the alarm level desired.
3. Press ENTER to store new values into instrument memory.
4. Press EXIT to return to the ALARM LEVELS without making a
change.
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Alarm Levels
Low Ceiling Alarm
Use the following procedure to access the low ceiling alarm.
1. From the ALARM LEVELS display, press 2=Low Ceiling. The
previous alarm settings for the Low Ceiling alarm are displayed.
FID
FID:
100ppm
Low Ceiling Alrm
Enter=New Value
PID/FID
PID:
100ppm
FID:
100ppm
Low Ceil: 1=Both
2=PID
3=FID
2. To change the alarm level to a new value, press ENTER on a single
detector instrument or 1, 2, or 3 on a dual detector instrument.
FID
PID/FID
Enter low ceil:
FID: 000500ppm
Up/Dn=Next Unit
Enter=Accept
Enter Low ceil:
P&F: 000500ppm
Up/Dn=Next Unit
Enter=Accept
Use the up and down arrow keys to select ppm or %, and decimal point
position, and then type the numeric value for the alarm level desired.
3. Press ENTER to store the new values into instrument memory.
4. Press EXIT to return to the ALARM LEVELS without making a
change.
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Alarm Levels
High Ceiling Alarm
Use the following procedure to access the high ceiling alarm.
1. From the ALARM LEVELS display, press 3=High Ceiling. The
previous alarm settings for the High Ceiling alarm are displayed.
FID
FID:
250ppm
High Ceiling Alm
Enter=New Value
PID/FID
PID:
250ppm
FID:
250ppm
High Ceil:1=Both
2=PID
3=FID
2. To change the alarm level to a new value, press ENTER on a single
detector instrument or 1, 2, or 3 on a dual detector instrument.
FID
Enter high ceil:
FID: 001000ppm
Up/Dn=Next Unit
Enter=Accept
PID/FID
Enter high ceil:
P&F: 001000ppm
Up/Dn=Next Unit
Enter=Accept
Use the up and down arrow keys to select ppm or %, and decimal point
position, and then type the numeric value for the alarm level desired.
3. Press ENTER to store the new values into instrument memory.
4. Press EXIT to return to the ALARM LEVELS display without making
a change.
Note The high ceiling alarm cannot be set higher then 30,000 ppm or
3%. ▲
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Log Methods
Log Methods
Selecting the LOG mode not only identifies the way in which data is stored
in instrument memory but also governs the way the RUN mode works.
Four possible choices in the LOG mode are available, None, Auto,
VOC/FE, and Custom.
Table 3–3. Available Log Data Types
Thermo Fisher Scientific
Option
Description
1. None:
Selecting None means that no logging action takes place at all. When the
instrument is in the RUN mode, you can only display readings.
2. Auto
When you select and configure the AUTO method, the RUN mode functions
automatically once an action is initiated. You choose an automatic logging
rate between 1 second and 999 minutes, type a tag identifier, and start the
instrument. You initiate automatic sampling by either pressing the LOG key
on the probe or the ENTER key on the instrument. From that point on, the
instrument automatically logs the reading of the sample at the end of each
countdown and continues to do so until the battery goes low, you press the
EXIT key, or the logging memory is full.
3A. VOC
The VOC method of sampling is a manual means of triggering a sample/log.
Once configured for VOC, the RUN mode prompts you to type a tag
identifier. After you enter the tag, the instrument stands ready until you
initiate the logging mode with with the enhanced probe or press the ENTER
key on the instrument. Once LOG is initiated, the instrument counts down.
Samples are taken over that count down and the highest reading achieved,
or average (or last) reading is logged in memory and displayed on both
displays. The stored values are cleared by pressing either the SELECT key
on the enhanced probe or the ENTER key on the instrument. Each VOC log
must be done manually and individually.
3B. F.E.
The F.E. method of sampling is a manual means of triggering a sample/log
using a pre-configured monitor route file which has been downloaded and
stored in instrument memory. The F.E. method requires use of the enhanced
probe. You choose a sample time of between 2 and 30 seconds and you
choose to log either the highest reading or average (or last) reading
achieved during the sample time. Once configured for F.E. and the RUN
mode entered, the FE probe menu screen guides you through the monitor
route, displaying each pre-configured tag identifier in sequential order. A
SEARCH function is available at the probe menu to allow you to find tags
that are out of order. The probe display prompts you to confirm the tag
identifier, after which the instrument stands ready until you either select
LOG from the probe or press the ENTER key on the instrument. Once
initiated, the instrument begins a count down, sampling over the configured
sample time. The reading sampled during the countdown is displayed on
both displays and you are given the option to save the reading in memory or
to select LOG again. The stored values are cleared by selecting LOG on the
probe display or by pressing ENTER on the instrument. Each F.E. log must
be done individually and manually.
4. Custom
The Custom mode allows the user to configure all the logging parameters.
Refer to the Log Custom section for a more complete description.
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Log Methods
The RUN mode displays (as governed by the LOG selection) are:
FID-NONE
FID:
1376ppm
PID/FID-NONE
PID:
FID:
Exit=Stop
FID-AUTO, VOC, or F.E.
FID:
1376ppm
Sampling:
3sec
Exit=Stop
1042ppm
1376ppm
Exit=Stop
PID/FID-AUTO, VOC, or F.E.
PID:
1042ppm
FID:
1376ppm
Sampling:
3sec
Exit=Stop
Note To display and change the log menu, the instrument must be ON
but does not have to be warmed up. ▲
Accessing the LOG
Menu
Use the following procedure to access the log menu.
1. From the MAIN MENU display, press 2=Setup.
2. From the SETUP MENU display, press 3=Log.
LOG MODE
None
1=None 2=Auto
3=VOC/FE 4=Custm
The previous log selection is displayed on the second line. Follow the
procedure below to set the log mode.
Log None
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From the LOG MODE menu, press 1=None to display this message
briefly. The screen then returns to the SETUP MENU.
Thermo Fisher Scientific
Display Menus
Log Methods
None
-ACCEPTED-
Log Auto
Use the following procedure to access the auto log.
1. From the LOG MODE display, press 2=Auto. The previous log
selection is displayed on the second line of the screen.
Enter log rate:
Auto,rate=000sec
Up/Dn=Sec<->Min
Enter=Accept
2. Use the up and down arrow to select minutes (min) or seconds (sec).
Then, type the appropriate time interval desired for the automatic
sampling.
3. Press ENTER and, after a brief message of acceptance, the automatic
sampling is ready to be used in the Run mode.
Note To allow for STEL calculations, the log rate value must be less than
90 seconds. If a log rate greater than 90 seconds is selected, a warning
message will appear. Press EXIT to bypass this message and proceed. ▲
In the LOG Auto mode, data is logged in the format described below:
Thermo Fisher Scientific
●
Every time logging is initiated in the Run mode, a new header is
created.
●
Data is logged periodically, at the user-entered log rate, in the following
format:
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Log Methods
●
Log VOC
Approximately 9500 data samples may be taken with a single header.
Use the following procedure to access the VOC Log.
1. From the LOG MODE display, press 3=VOC/FE. The previous log
selection is displayed on the second line of the screen.
LOG MODE
None
1=VOC
2=FE
2. Press 1=VOC. The previous log selection is displayed on the second
line of the screen.
Enter sampling:
VOC,time=03s,Max
Up/Dn=Next type
Enter=Accept
3. Press the Up/Dn arrow keys to choose the type of sampling to be used
(Max, Avg, Smp).
a. Max=the maximum reading obtained during the log interval.
b. Avg=the average reading obtained during the log interval.
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Log Methods
c. Smp=the last reading obtained during the log interval.
4. Type the appropriate time interval desired for VOC sampling.
5. Press ENTER and, after a brief message of acceptance, the VOC
method of logging is now ready to be used in the Run mode.
Note The allowable Sample Time range is 2–30 seconds. If a Sample Time
of less than 2 seconds or greater than 30 seconds is selected, a warning
message will appear and you will be required to re-enter the Sample
Time. ▲
In the LOG VOC mode, data is logged in the format described below:
Log F.E.
●
Every time the user initiates logging, the instrument will countdown by
a defined interval and will prompt the user to save the captured value.
The user will need to re-initialize the logging sequence, including tag,
for successive samples. Data will fall under the same heading.
●
Data is logged in the following format whenever you press the LOG
button:
●
Approximately 4500 data samples may be taken.
Use the following procedure to access the F.E. Log.
Note The F.E. method requires use of the enhanced probe. ▲
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Log Methods
1. From the LOG MODE menu, press 3=VOC/F.E. The previous log
selection is displayed on the second line of the screen.
LOG MODE
Auto,rate= 10sec
1=VOC
2=FE
Press 2=FE to display this message.
Enter sampling:
FE,time=00s,Max
Up/Dn=Next type
Enter=Accept
2. Press the Up/Dn arrow keys to choose the type of sampling to be used
(Max, Avg, Smp).
a. Max = the maximum reading obtained during the log interval.
b. Avg = the average reading obtained during the log interval.
c. Smp = the last reading obtained during the log interval.
3. Type the appropriate time interval desired for F.E. sampling.
4. Press Enter, and, after a brief message of acceptance, the F.E. method
of logging is now ready to be used in the RUN mode.
Note The allowable Sample Time range is 2-30 seconds. If a Sample Time
of less than 2 seconds or greater than 30 seconds is selected, a warning
message will appear and you will be required to re-enter the Sample
Time. ▲
Note If dual option, the user must use the enhanced probe to change
detector type. ▲
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Log Methods
●
Log Custom
Approximately 2900 data samples may be taken.
The TVA2020 has several pre-designed logging methods. However, if you
find that you would prefer to log data in a different fashion, you can use
Custom logging to create your own log type. The TVA2020 will prompt
you through a series of questions which will assist you in setting the various
logging options. The end result is a logging method which collects data the
way you want it to.
The following variable settings can be configured when designing a Custom
log method.
1. Log data type
This setting allows you to choose the format in which data will be saved.
The choices are as follows:
a. None.
b. Auto – Data stored in a fashion similar to Auto logging (tag,
calibration information, Detector Counts, time/date, alarms).
c. VOC – Data stored in a fashion similar to VOC logging (Tag,
Calibration Information, Detector Counts, time/date, alarms).
d. FE – Data stored in a fashion similar to FE logging.
2. Sample time
This setting allows you to adjust the sampling interval.
3. Log time units
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Log Methods
This setting allows you to choose the units for the sample interval (seconds
or minutes).
4. Log sample type
This setting allows you to choose the way in which sample readings are
collected over the sample rate or interval. The choices are as follows:
a. Last sample — the last reading obtained within the sample interval
is stored
b. Max — the maximum reading obtained within the sample interval
is stored
c. Avg — the average reading obtained over the sample interval is
stored
5. Log unit lock
This setting allows you to decide whether to enable auto-ranging or lock
the TVA2020 units to either ppm or %.
6. Log auto repeat
This setting allows you to determine whether the TVA2020 should
automatically cycle through logging events (auto repeat ON) or pause for a
user command before logging (auto repeat OFF).
7. Log save accept
This setting determines whether the TVA2020 prompts the user before
saving a logged reading (Manual) or automatically saves the reading
without a user prompt (Auto).
8. Tag active
This setting determines whether or not you want to assign tags to logged
readings. If you wish to assign tags, choose ON. If you wish to skip
tagging, choose OFF.
9. Route active
This setting determines whether the logging should follow a pre-loaded
route list of tags. If you wish to upload a list of tags to the TVA2020 and
follow that list while logging, choose ON. If you do not wish to use
routing, choose OFF.
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Passcode Protection
Passcode
Protection
The TVA2020 Setup Menu can be passcode protected. This option allows
you to protect the setup parameters from anyone who is not familiar with
your 6-digit passcode. If this feature is enabled, you need to enter your
passcode each time you choose to display the SETUP menu.
1. From the MAIN MENU display, press 2-Setup.
2. From the SETUP MENU display, press 4=Passcode.
3. Press ENTER to accept passcode.
PASSCODE MENU
Disabled
1=New Passcode
2=Enabl 3=Disabl
New Passcode
New Passcode allows you to enter and/or change the 6-digit calibration
passcode. You may use any characters from the alphanumeric keypad in
your passcode. You must then verify the passcode to make sure you have
entered it properly.
From the PASSCODE MENU display, press 1=New Passcode.
Enter passcode:
THER___
1=S 2=T 3=U
Enable
Thermo Fisher Scientific
0=7
Enable allows you to activate the passcode protection feature. Once this
feature is activated, you must enter your passcode whenever you request
access to the SETUP MNEU. Once passcode protection has been enabled
and you exit the SETUP MENU, the option can only be disabled by
entering the passcode to gain access to the SETUP MENU again.
REMEMBER YOUR PASSCODE!
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Other Settings
Disable
Disable allows you to deactivate the passcode protection feature. Once this
feature is deactivated, you have unlimited access to the SETUP MENU
without entering a passcode.
Note In the event you inadvertently forget your passcode, contact Thermo
Fisher Scientific for assistance. ▲
Other Settings
Other Settings include:
OTHER SETTINGS
1=User ID
2=Date
3=Time
4=User Options
●
1=User Identification Number
●
2=Date
●
3=Time
●
4=User Options
Note Time may be set only if the date is within the valid range of 1980 to
2037. ▲
User Identification
Number
Use the following procedure to set the user identification number.
Note To set the User ID number, the instrument must be ON but does
not have to be warmed up. ▲
1. From the MAIN MENU display, press 2=Setup.
2. From the SETUP MENU display, press 5=Other.
3. From the OTHER SETTINGS menu, press 1=User ID.
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Other Settings
User ID:
USERID
Enter=Change
4. From the User ID prompt, press ENTER.
5. Use the keypad to type your user ID.
Enter user ID:
---------Press char key
6. Press ENTER to store the user ID into memory.
Date
Use the following procedure to set the date.
Note To set the correct date, the instrument must be ON but does not
have to be warmed up. Date entries earlier than Jan. 1, 1980 or later than
2037 are invalid. ▲
1. From the MAIN menu display, press 2=Setup.
2. From the SETUP menu display, press 5=Other.
3. From the OTHER SETTINGS menu, press 2=Date.
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Other Settings
Enter date:
--/--/-Enter=Accept
4. The next screen reads the current date. If OK, press EXIT or ENTER
to change. EXIT returns to the OTHER SETTINGS menu. ENTER
prompts you to type the correct date. Do so by typing month/day/year.
Date:
05/10/12
Enter=Change
5. Press ENTER to store the date in memory. The display then returns to
OTHER SETTINGS.
Time of Day
Use the following procedure to set the time of day.
Note To set the correct time, the instrument must be ON but does not
have to be warmed up. The date must be within the valid range of 1980 to
2037. ▲
1. From the MAIN MENU display, press 2=Setup.
2. From the SETUP MENU display, press 5=Other.
3. From the OTHER SETTINGS menu, press 3=Time.
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Other Settings
Time:
05:26:16
Enter=Change
4. The next screen reads the current time. If it is OK, press EXIT or
ENTER to change. EXIT returns to the OTHER SETTINGS Menu,
ENTER prompts you to type the correct time. Do so by typing
hour/minute/second.
Enter time:
--:--:-Enter=Accept
5. Then press ENTER to store the time in memory. The display then
returns to OTHER SETTINGS.
User Options
This menu contains user settable options to customize the features
described below.
1. From the MAIN MENU display, press 2-Setup.
2. From the SETUP MENU display, press 5=Other.
3. From the OTHER MENU display, press 4=User Options.
USER OPTIONS
1=Key Click
2=Display Delay
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Other Settings
User Options include:
Key Click
●
1=Key Click
●
2=Display Delay
If the key click is on, a chirp is heard every time a key is pressed.
Note To select key click on/off, the instrument must be ON but does not
have to be warmed up. ▲
1. From the MAIN MENU display, press 2=Setup.
2. From the SETUP MENU display, press 5=Other.
3. From the OTHER SETTINGS menu, press 4=User Options.
4. From the USER OPTIONS menu, press 1=Key Click.
Key click:
Off
1=On
2=Off
5. From the Key click Menu, press 1=On or 2=Off. The screen displays
the previous selection. When a new selection is made, the display
returns to USER OPTIONS.
Display Delay
This function determines the length of time that temporary messages
remain on the screen.
Note To select the display delay, the instrument must be ON but does not
have to be warmed up. ▲
1. From the MAIN MENU display, press 2=Setup.
2. From the SETUP MENU display, press 5=Other.
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Information Menu
3. From the OTHER SETTINGS menu, press 4=User Options.
4. From the USER OPTIONS menu, press 2=Display Delay.
Display delay:
Medium
1=Short
2=Medium
3=Long
5. From the Display delay menu, press 1=Short, 2=Medium or 3=Long.
The screen displays the previous selection. When a new selection is
made, the display returns to USER OPTIONS.
Note “Short” is approximately 0.5 sec, “Medium” is approximately 1.5
seconds, and “Long” is approximately 3.5 seconds. ▲
Information
Menu
The information menu is a view-only list of 14 items/parameters existing in
the instrument. No changes may be made in this menu. Enter the INFO
Menu from the MAIN menu by pressing 3=Info. Use the up/down keys to
page through the list.
The parameters/items you may view are:
Thermo Fisher Scientific
●
Model: TVA2020
●
S/N DDDDDDDDDDDD
●
Date
●
Time
●
Det: PID, FID, or both
●
Pump: On or Off and %
●
Bat: Battery voltage listed, OK or low
●
Memory: how much is free to use
●
Ver: Current Software Version No.
●
Optional Bluetooth status
●
Optional GPS status
●
PID zero calibration: Date and time of last calibration
●
FID zero calibration: Date and time of last calibration
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Memory
●
PID span calibration: Date and time of last calibration
●
FID span calibration: Date and time of last calibration
Note To view calibration information, you must return to the calibration
menu in SETUP. Press EXIT to return to MAIN menu. ▲
Memory
This menu allows you to link the TVA2020 to a personal computer (PC)
through the USB port to copy files from and into the instrument, clear data
memory, and update instrument firmware.
Note The Flash memory device is erased prior to the file creation process
to ensure sufficient memory exists to create the data files. Do not store any
files on the instrument Flash drive as they will be lost. ▲
WARNING Charger and USB connections are not allowed in an area
classified as hazardous due to presence of flammable gases or vapors. ▲
To enter the MEMORY menu from the MAIN menu, press
4=MEMORY. The following display will appear:
MEMORY
1=USB Mode
2=Clear Log Mem
3=UpdateFirmware
Choosing 1 = After choosing 1 the display will show “Creating Files Please
wait” as shown below. The file creation can take up to one minute,
depending on the size of the log file.
Creating Files
Please Wait
Do not connect the USB cable to the instrument until the instrument
displays the screen below.
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Memory
USB MODE
Exit=Cancel
The USB barrier device must be connected in line between the computer
and the instrument. Two standard USB cables are provided to make this
connection. If the barrier device in not used, the following message will be
displayed.
=== WARNING! ===
Incorrect USB
cable detected
Exit=Clr
When first connected to a PC the TVA2020 will send the correct driver
files to the computer. Administrator privileges may be needed to allow the
proper files to be transferred to the PC.
Once connection has been established the files listed below will be
displayed in a newly opened TVA2020 window. These files can be dragged
and dropped into any user folder or directory. If the TVA2020 window
does not appear, try disconnecting and reconnecting the USB cable from
the PC or open Explorer and look for the TVA2020 device.
The Flash files can also be deleted without any adverse affect on the
instrument. These files are backed up inside the instrument memory.
The instrument keypad is disabled while the instrument is connected to the
PC via the USB cable. To resume keypad control, close the TVA2020
dialog window and eject the TVA2020 memory device using the PC
controls. The following information can be saved from the TVA2020 to
the PC:
a. ROUTE.TXT (Route List)
b. CONFIG.TXT (TVA2020 Configuration)
c. CAL.TXT (TVA2020 Calibration Parameters)
d. FACTORY.TXT (TVA2020 Factory Calibration)
e. LOG.TXT (Logged Data)
f. CAL_HIST.TXT (Calibration History)
The following information can be saved from a PC to the TVA2020:
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TVA2020 Instruction Manual
3-31
Display Menus
Memory
a. ROUTE.TXT (Route List)
b. CONFIG.TXT (TVA2020 Configuration)
c. CAL.TXT (TVA2020 Calibration Parameters)
d. FACTORY.TXT (TVA2020 Factory Calibration)
Note TVA2020 only recognizes the above naming format, otherwise the
file will be deleted. ▲
Upon exiting the USB MODE screen, any files that have changed will be
loaded into the instrument memory. If the file format is incorrect, the
following message will appear.
=== WARNING! ===
File read error:
check err file!
Exit=Clr
If you choose Exit to clear, the following displays:
Error in files
1=USB mode to
fix files
2=Revert to old
If you choose to fix the files, re-establish the PC USB connection and open
the error file that was created to identify the line(s) of text in error.
If you choose to revert to the existing files, your changes will be lost unless
they were saved on your PC. The following screen appears:
Reverting
Please wait
Text File Formats
Messages to be uploaded and downloaded must be written in straight
ASCII text and must contain blank spaces between text, not tabs.
For more information, See Appendix B, “Text Data Formats”.
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Thermo Fisher Scientific
Display Menus
Memory
Choosing 2 = Clear Logging Memory will erase any loaded logged data
stored in TVA2020 memory. A warning that “You are about to clear all
memory” will appear and must be acknowledged before the TVA2020 will
clear its memory. Be absolutely sure that you wish to clear memory before
choosing this action. Once memory is cleared, it cannot be retrieved.
Choosing 3 = Update Firmware allows the user to update instrument
firmware upon new releases.
IMPORTANT Do not perform this procedure unless you have a new
firmware image. Confirm that the new firmware image is stored locally on
your hard drive. The instrument firmware will be deleted and if a new file
is not available the instrument will be rendered inoperative. Make sure the
battery is fully charged or the instrument in plugged into the charger
during this process. DO NOT turn off the instrument while uploading the
instrument. Failure to follow these procedures will render the instrument
inoperative. If the display contains two black lines or does not display the
main menu, the instrument will need to be returned to the Thermo Fisher
Scientific service department. ▲
1. Confirm that the new firmware image is stored locally on your hard
drive.
2. Before uploading the new firmware back up all the instrument files as
detailed in the USB mode section. These files will remain unchanged in
the instrument during the upload but a back up is recommended.
3. Press 3=UpdateFirmware.
4. Press ENTER at the first warning screen.
=== WARNING! ===
Press Enter to
Start fw update
Exit=Cancel
5. Press ENTER at the second warning screen. Please note that pressing
‘Enter’ will delete the current firmware installed in the instrument.
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TVA2020 Instruction Manual
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Display Menus
Memory
=== WARNING! ===
Continuing will
Erase the FW
Exit=Cancel
6. Follow the steps listed on the display.
FW
1.
2.
3.
UPDATE STEPS
Connect USB
Copy File
Wait Reboot
7. After connecting the USB cable the following window will open.
8. Drag and Drop or Copy and Paste the new firmware file into this
‘Removable Disk’ window.
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Display Menus
Memory
9. The copying window should appear while the file transfers.
10. After transfer, the ‘Removable Disk’ window will close and the
instrument will automatically reboot to the main menu.
11. Confirm that the calibrations (gas and flow) are still valid. If needed,
they can be transferred back into the instrument using the
Memory/USB Mode functions.
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TVA2020 Instruction Manual
3-35
Chapter 4
Calibration
This chapter describes procedures for performing a calibration on the
TVA2020. For details, see the following:
Thermo Fisher Scientific
●
“Calibration Scenarios” on page 4-1
●
“Calibration Configuration” on page 4-3
●
“Detector Counts” on page 4-9
●
“Defining the Response Factor” on page 4-10
●
“Flow Calibration” on page 4-18
Calibration
Scenarios
The use of multipoint calibration and multiple response factors/curves with
the TVA2020 must be fully understood before employing these features.
To help explain these TVA2020 capabilities, three scenarios follow:
Scenario 1
To maximize standard accuracy, it is highly recommended that you
calibrate with methane for the flame ionization detector and isobutylene for
the photoionization detector. Almost all published response factors for
FIDs and PIDs are based upon methane and isobutylene, respectively. By
employing a multipoint calibration for these compounds, you will improve
the accuracy of each detector over the entire dynamic range. Response
factors/curves can then be employed for correcting the detector’s response
to different compounds. However, once a multipoint calibration has been
employed, any response curve must characterize only the relative response
at each concentration, excluding curvature of the calibrated compound.
Thus, use of both multipoint calibration and response curves at the same
time is difficult, and is not recommended.
Scenario 2
If, for example, you want to measure several different compounds over
wide concentration ranges, it is best to use a single-point calibration and
then enter response curves for each specific compound (up to 9 response
factors/curves can be entered into the analyzer).
TVA2020 Instruction Manual
4-1
Calibration
Calibration Scenarios
Scenario 3
If, instead, you want to measure in direct readings (response factor = 1) for
one specific compound with maximum accuracy over a wide range of
concentrations, perform a multipoint calibration with the specific
compound. Up to 9 span points (plus zero) can be entered for each
detector. The use of a response curve is thus unnecessary as the detector is
already reading the direct ppm for that specific compound.
CAUTION If you use multipoint calibration or a gas other than methane or
isobutylene and then apply response factors/curves (that have been
generated with reference to a single point methane/isobutylene calibration),
the resulting measurements will probably be incorrect. ▲
To provide the specified accuracy, the instrument must be calibrated at the
beginning of each workday.
●
From the Main Menu, choose 2 = Setup > 1 = Calib.
When you reach the CALIBRATION menu, you will see the following
selections:
CALIB MENU
1=Zero
2=Span
3=Backgnd 4=RF
5=Flow
6=Cfg
The steps involved in calibrating the TVA2020 are as follows:
1. Configure the calibration variables (6=Cfg):
●
Number or span points (1-9)
●
Span concentration
●
Background correction (None, PID, FID, Both)
●
Response factor calculation mode (Multiplication factor or Curve)
●
Accept mode (Manual or Auto)
●
Save mode (Manual or Auto)
2. Zero the instrument using either a zero gas or clean ambient air
(1=Zero).
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Calibration
Calibration Configuration
3. Calibrate the reference point(s) using known span gases. The TVA2020
can be configured for as many as nine different span gas values
(2=Span).
4. Optional: Set instrument response factors if necessary (4=RF).
5. Optional: Take background reading (3=Backgnd).
6. Optional: Calibrate the flow sensor (5=Flow).
Note Prior to performing calibration, the instrument must be on and
warmed up for approximately 30 minutes. The pump must be ON, the
PID lamp must be ON, and the FID must be ignited throughout the
warm-up period. ▲
Calibration
Configuration
Before you calibrate the TVA2020 for the first time, you may want to
customize certain calibration settings. Once you have configured these
settings, you don’t need to set them again every time you calibrate unless
you want to change one.
In order to set your calibration options from the CALIBRATION menu,
from the CALIB MENU display, choose menu selection #6 (Cfg). This
will produce the following CAL CONFIG MENUs which can be scrolled
through by using the Up and Down arrows:
CAL CONFIG MENU
1=Number span pt
2=Span concs
Up/Dn=More
CAL CONFIG MENU
1=Backgnd corrct
2=RF calc mode
Up/Dn=More
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TVA2020 Instruction Manual
4-3
Calibration
Calibration Configuration
CAL CONFIG MENU
1=Accept Mode
2=Save mode
Up/Dn=More
Number Span Pt
The Number Span Pt screen is used to determine the number of span
points that will be used to calibrate your TVA2020. Choosing this selection
will produce the following screen:
FID
FID:
3
Span Gas Points
Enter=New Value
PID/FID
PID:
5
FID:
3
Span Pts: 1=Both
2=PID
3=FID
From this screen, you may choose which detector you wish to set the
number of span points for. Choosing one of these selections produces the
following screens:
FID
PID/FID (Both option)
Number span pts:
FID:
3
Number Span Pts:
P&F:
5 & 3
Select: 1 to 9
Select: 1 to 9
From these screens, press the number of span points that you wish to use.
Both detectors can have up to 9 span points each, and they do not
necessarily need to have the same number of span points. When Both
option is chosen, a single value will be applied to both PID and FID.
Defining the Span Gas
Concentration(s)
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TVA2020 Instruction Manual
The span gas concentration is the known concentration of the gas standards
used to calibrate your TVA2020. Methane in air is the recommended
calibration standard for the FID, and Isobutylene in air is the
recommended calibration standard for the PID. Other gases may be used if
desired.
Thermo Fisher Scientific
Calibration
Calibration Configuration
Note If your instrument is equipped with dual detectors, you may choose
to calibrate the FID separately or PID/FID together. ▲
Note If your instrument is configured for multiple span points, be sure to
set the concentration for ALL span points. ▲
1. From the CAL CONFIG MENU (Page 1) display, press 2=Span concs.
The upper display (or two displays if the unit is a dual detector version)
will display the concentration value of your span gas (expressed as ppm
or %) as of the last calibration:
FID
FID:
500ppm
Span Gas Concent
Enter=New conc
PID/FID
PID:
100ppm
FID:
500ppm
Span Conc:1=Both
2=PID
3=FID
If the TVA2020 is configured for multiple calibration points, the span gas
concentration values for Point #3 will be displayed. The Up and Down
arrow keys can be used to scroll through the span gas concentration values
for other points:
FID
FID:
500ppm
Span Pt3 (Up/Dn)
Enter=New conc
PID/FID
PID:
100ppm
FID:
500ppm
Span Pt3 (Up/dn)
1=Both 2Pid 3Fid
2. To change a span gas concentration value, choose the detector(s) of
interest if using a dual detector analyzer, or press ENTER if using a
single detector analyzer. The following display will appear:
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TVA2020 Instruction Manual
4-5
Calibration
Calibration Configuration
FID
PID/FID
Enter span conc:
FID:
500ppm
Up/Dn=Next unit
Enter=Accept
Enter span conc:
P&F:
100.0ppm
Up/Dn=Next unit
Enter=Accept
Use the up and down arrow keys to select the measurement units (ppm or
%) and the decimal point position. There are 3 selections to choose from:
Table 4–1. Gas Concentration Units
Range
Display
Units
3
DD.DD
%
2
DDDDDD
ppm
1
DDDD.D
ppm
The range of the instrument is determined by your selection of
measurement units and decimal point placement. In the run mode, the
instrument will auto range upward only to select the optimum range for
displaying measurement information. For example, if you entered a value
in Range 1 and the measured value changes to a high value, the instrument
will automatically switch to range 2. If it increases further, it will switch to
Range 3.
After you have selected the measurement units and decimal point
placement, use the keypad to enter the concentration value. Press ENTER
to accept this value and store it in the TVA’s memory.
3. If your TVA2020 is a dual detector analyzer, you may repeat the
procedure for the second detector. If your TVA2020 is configured for
more than one span point, you may use the Up/Dn arrow keys to select
the next span point and repeat the procedure.
4. When the last gas concentration value has been entered, you can return
to the CALIBRATION menu, by pressing the EXIT key.
Background Correct
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TVA2020 Instruction Manual
This selection allows you to choose whether or not to apply background
correction to the detector readings displayed and logged in memory. If you
choose to apply background correction, the last background reading stored
in memory will be subtracted from the measured reading. This corrected
Thermo Fisher Scientific
Calibration
Calibration Configuration
reading will be the value displayed and the value logged. Choosing this
selection from the CAL CONFIG MENU produces the following display:
FID
Backgnd correct:
ON
1=ON
2=None
PID/FID
Backgnd correct:
PID
1=Both
2=None
3=PID
4=FID
The second line of the display shows what option is currently selected. You
can change this option by choosing any one of the menu selections in dual
detector instruments. You may choose to apply correction to FID, PID or
both detectors.
Defining the Background
Correction
From the CALIB MENU display, press 3=Backgnd.
FID
FID:
0.0ppm
Background conc
1=Update
2=Zero
PID/FID
PID:
0.0ppm
FID:
0.0ppm
Background conc
1=Update
2=Zero
Press 1=Update to read live values of ambient air.
FID
PID/FID
Please wait...
Please wait...
Sampling backgnd
Enter=Accept
Sampling backgnd
Enter=Accept
FID
FID:
0.3ppm
Sampling backgnd
Enter=Accept
PID/FID
PID:
0.2ppm
FID:
0.3ppm
Sampling backgnd
Enter=Accept
Press ENTER.
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TVA2020 Instruction Manual
4-7
Calibration
Calibration Configuration
FID
FID:
0.3ppm
PID/FID
PID:
FID:
-ACCEPTED-
0.2ppm
0.3ppm
-ACCEPTED-
Note A default background value of 0 is stored in memory until a
background reading is taken. ▲
Note The background correction is reset to zero when the unit is powered
up and when the user exits the USB Mode screen. ▲
RF Calc Mode
This selection allows you to choose how response factor correction will be
applied to the reading. Choosing this selection from the CAL CONFIG
MENU produces the following display:
RF calc Mode:
Factor
1=Factor 2=Curve
The second line of the display shows what option is currently selected. If
“Factor” is chosen, the TVA2020 will use a single constant response factor
which is multiplied by the reading. If “Curve” is chosen, the TVA2020 will
use a two constant equation. For more information, refer to the section of
the manual on “Response Factors.”
Cal Accept Mode
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TVA2020 Instruction Manual
This selection allows you to choose whether or not calibrations will be
automatically accepted. Choosing this selection from the CAL CONFIG
MENU produces the following display:
Thermo Fisher Scientific
Calibration
Detector Counts
Cal accept mode:
Manual
1=Manual
2=Auto
The second line of the display shows what option is currently selected. If
“Manual” is chosen, the instrument will display the detector count during
calibration and prompt the user to decide when to accept the calibration
value. If “Auto” is chosen, the instrument will automatically determine the
value to be stored and when to do it.
Cal Save Mode
This selection allows you to choose whether or not the TVA2020 will
automatically save an accepted calibration. Choosing this selection from the
CAL CONFIG MENU produces the following display:
Cal save mode:
Manual
1=Manual
2=Auto
The second line of the display shows what option is currently selected. If
“Manual” is chosen, after a calibration value has been accepted the
instrument will prompt the user to decide whether to save the calibration
value or repeat the calibration (1 = Yes or 2 = Again?). If “Auto” is chosen,
the instrument will automatically store the accepted calibration value
without prompting the user.
Detector Counts
Detector counts are the raw, unscaled detector output values associated
with a gas measurement performed by the FID or the PID. Before a
detector reading is displayed or recorded, the detector signal is converted
from analog to digital. The result is a raw number, or A/D counts.
When a detector is calibrated, the detector counts for the zero gas and each
of the span gases are saved in memory. These detector counts are then used
as reference points for calculating the concentration values to be displayed
or stored.
When calibrating the TVA2020 in the “Manual” accept mode, the counts
from the last calibration (Zero or Span) are displayed before the calibration
process is initiated. Once the calibration process is initiated, the live
detector counts are then displayed. You can refer to these counts as an
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TVA2020 Instruction Manual
4-9
Calibration
Defining the Response Factor
indication of when the reading has stabilized, or as a means of tracking the
repeatability of your calibrations.
You can also use these counts as an indication of the success of a
calibration. The “zero” counts are the counts expected when a zero gas is
applied to the detector. The span counts are the counts expected when a
span gas of known concentration is applied to the detector. Finally, the
detector sensitivity can be calculated by subtracting the zero counts from
the span counts and dividing by the span gas concentration. Use the
following general observations as a guideline:
Table 4–2. Detector Counts
Detector
Zero Counts
Detector Sensitivity
FID
<6000
160-260 counts/ppm Methane
PID (10.6 eV lamp)
1000-2000
10-35 counts/ppm Isobutylene
Example: A TVA2020 FID is calibrated with zero air and a 100 ppm
Methane in air span gas. The counts observed for the zero are 2895 and the
counts observed for the span are 27395. The span sensitivity is thus 245
counts/ppm [(27395-2750)/100 ppm]. Since both of these values (2895
zero counts and 245 detector sensitivity) are within the acceptable range,
the calibration is a good calibration. Examples of a bad calibration include
unusually high zero counts, or unusually low detector sensitivity. These
problems can often be attributed to poor calibration gases, contaminated
sampling accessories, a faulty detector capsule, or failure to follow the
proper calibration procedure. For more information, consult the
“Troubleshooting” chapter in this manual or contact Thermo Fisher
Scientific for assistance.
Defining the
Response Factor
Although the FID and PID are calibrated with span gases of known
concentration (usually Methane and Isobutylene, respectively), both
detectors respond to many different compounds with differing levels of
sensitivity. In order to adjust the analyzer reading from “ppm of Methane”
or “ppm of Isobutylene” to ppm of the compound of interest, a correction
factor must be applied to the reading. This correction factor is also known
as a Response Factor. You can choose from up to nine (9) user-defined
response factors, or use the default response factor of 1.00. Each response
factor can be assigned a 9-character alphanumeric name.
The TVA2020 uses one of two different response factor formats: a
Multiplier or a Curve.
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Calibration
Defining the Response Factor
Response Factor
Multiplier
A response factor multiplier is defined as follows:
Response Factor
=
Actual Concentration
----------------------------------------------------------Measured Concentration
Example: If 100 ppm of a compound produces an FID response of 50 ppm
on an analyzer calibrated with Methane, then the FID response factor
would be 2.00 (100/50).
When using a response factor multiplier to correct a TVA2020 reading, the
analyzer multiplies the reading by the response factor and displays the
corrected reading. As in the example give above, if a 50 ppm reading is
obtained by the TVA2020, the analyzer would automatically multiply 50
times 2.00 to get the actual concentration of 100 ppm.
Response Curve
Response factors can change as concentration changes. The response factor
for a compound determined at 500 ppm may not be the same as the
response factor determined at 10,000 ppm. By using a response curve, you
can characterize a compounds response over a broader range of
concentrations. If the actual concentration is plotted as Y vs. X (measured
concentration), the resulting curve can be represented by the rational
equation
AX
Y = -----------------------------------------BX
⎛ 1 + --------------------------⎞
10000ppm⎠
⎝
When using the RF Calc Mode “curve”, the terms A and B are entered into
the TVA2020. A represents the response factor multiplier at very low
concentrations and B represents a change to the response for every percent
concentration increase.
The curve can only be defined by collecting response data at several
different concentrations and using a xy math spreadsheet to calculate the
“best-fit” polynomial expression.
Note Once the response curve has been fit, the calibration gas
concentrations and number of span points should not be changed without
readjusting the curve fit. ▲
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TVA2020 Instruction Manual
4-11
Calibration
Defining the Response Factor
To define and/or choose a response factor, choose 4=RF from the CALIB
MENU. The following display will appear:
RF0: Default
Up/Dn=Next RF
Enter=Accept
The top line shows the currently active response factor. If no response
factor is applied, the currently active response factor will be the factory
DEFAULT (1.00 for FID methane and 1.00 for PID isobutylene). The
name and value of the default response factor cannot be changed. You can
scroll through the other response factors by using the Up and Down arrow
keys. The other response factor names will show as you scroll through
them:
RF3: PROPANE
Up/Dn=Next RF
1=Change
Enter=Accept
If you would like to activate a different response factor, press
ENTER=Accept. The TVA2020 will show an ACCEPTED message. If
you would like to modify the response factor name or numbers, press
1=Change:
FID
RF3: PROPANE
FID:
1.50
1=Name 2=Numbers
PID/FID
RF3: PROPANE
PID:
1.50
FID:
1.50
1=Name 2=Numbers
If you would like to change the name assigned to the response factor, press
1=Name. If you would like to change the response factor value, press
2=Numbers. If you choose 1=Name, the following display will appear:
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Thermo Fisher Scientific
Calibration
Defining the Response Factor
Enter name:
RF3: Hexa_________
Press char key
Use the alphanumeric keypad to enter a compound name for the response
factor. Press enter when you are finished.
If you choose 2=Numbers, the following display will appear:
FID
Enter RF3:
FID:01.50
Enter=Accept
PID/FID
Enter RF3:
P&F:01.50
Enter=Accept
Use the keypad to enter a new response factor and press ENTER to store it
in instrument memory.
Note The TVA2020 will not accept a response factor of 00.00. ▲
Note If a response curve is used, the TVA2020 will prompt you to enter
two numbers. ▲
FID
RF3: PROPANE
FID: 1.25
1.50
1=Name 2=Numbers
PID/FID
RF3: PROPANE
PID: 1.25
1.50
FID: 1.25
1.50
1=Name 2=Numbers
Press 2=Numbers
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TVA2020 Instruction Manual
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Calibration
Defining the Response Factor
FID
PID/FID
Enter RF3 fact1:
FID:01.25
Enter RF3 fact1:
P&F:01.25
Enter=Accept
Enter=Accept
Press ENTER.
FID
Enter RF3 fact2:
FID: 1.25 +01.50
Up/Dn=+/Enter=Accept
Zero Reference
Point Calibration
PID/FID
Enter RF3 fact2:
P&F: 1.25 +01.50
Up/Dn=+/Enter=Accept
Use the following procedure to zero the instrument.
1. From the CALIB MENU display, press 1=Zero.
Note The following sequence shows the procedure when the TVA2020 is
configured with both Cal Accept mode and Cal Save mode = Auto. If
either mode is Manual, an extra confirmation is required at the appropriate
step. ▲
Note If your instrument is a dual detector type (PID and FID), you can
zero the PID and FID separately, both together, or one in zero gas and one
in clean ambient air. To do so, follow the same procedure. However, it is
suggested that you zero both detectors together. ▲
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Thermo Fisher Scientific
Calibration
Defining the Response Factor
If you press 1=Zero, the display will show:
FID
FID:
PID/FID
3500
Zero Calib Value
Enter=New Calib
PID:
1350
FID:
3500
Zero Cal: 1=Both
2=PID
3=FID
2. To perform the actual ZERO procedure:
●
FID-only: Press ENTER
●
PID/FID: Press 1, 2, or 3
FID
PID/FID
Apply zero gas
at sample inlet
Apply zero gas
at sample inlet
Enter=Start
Enter=Start
3. Apply the zero gas to the probe at ambient pressure (using a clean and
labeled gas sampling bag) and then press ENTER.
FID
FID:
PID/FID
3500
Wait for zero...
Exit=Cancel
PID:
1350
FID:
3500
Wait for zero...
Exit=Cancel
The instrument analyzes the zero sample.
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TVA2020 Instruction Manual
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Calibration
Defining the Response Factor
FID
FID:
PID/FID
3500
-ACCEPTED-
PID:
FID:
1350
3500
-ACCEPTED-
The ACCEPTED message appears for a short time and is then replaced by
the normal CALIBRATION menu.
When the ACCEPTED message disappears and the CALIB MENU
appears, the ZERO reference value is stored. This value is stored in nonvolatile memory until the next calibration is performed. The date and time
of this calibration are stored and can be accessed through the INFO menu.
Note For optimum accuracy, re-zero the FID every time the hydrogen
supply is turned on. ▲
Span Reference
Point(s)
To set the span reference point, execute the procedure described below.
Note that the procedure is the same as that for setting the zero reference
except that a span gas is used instead of a zero gas. The procedure is:
1. From the CALIB MENU display, press 2=Span.
Note The following sequence shows the procedure when the TVA2020 is
configured with both Cal mode and Cal Save mode = Auto. If either mode
is Manual, an extra confirmation is required at the appropriate step. ▲
Note If your instrument is a dual detector type (PID and FID), you can set
the span reference for the PID and FID separately, both together, or one in
one type of calibration gas and one in another type of gas. To do so, follow
the same procedure. ▲
Note The FID and PID span concentrations must be the same for both
span reference point selections, otherwise an error screen will be
displayed. ▲
Note If multiple span points are used, repeat the following procedure for
each and every span point. ▲
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Thermo Fisher Scientific
Calibration
Defining the Response Factor
When you press 2=Span, the display will show:
FID
FID:
44750
Span Pt1 (Up/Dn)
Enter=New calib
PID/FID
PID:
4000
FID:
44750
Span Pt1 (Up/Dn)
1=Both 2Pid 3Fid
If more than one reference span gas concentration has been configured,
pressing the Up/Dn keys will allow you to scroll through all defined
reference gas concentration points.
2. To perform the actual SPAN calibration (for example at 100 ppm
isobutylene):
●
FID-only: Press ENTER
●
PID/FID: Press 1, 2, or 3
FID
PID/FID
Apply span gas1
100.0ppm
Apply span gas1
100.0ppm
Enter=Start
Enter=Start
3. Apply the appropriate span gas to the probe at ambient pressure (using
a clean and labeled gas sampling bag) and then press ENTER.
FID
FID:
44750
Wait for span...
Exit=Cancel
PID/FID
PID:
4000
FID:
44750
Wait for span...
Exit=Cancel
The instrument analyzes the span sample.
When only one reference span gas concentration is used, the ACCEPTED
message appears for a short time and is then replaced by the normal
CALIBRATION menu.
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TVA2020 Instruction Manual
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Calibration
Flow Calibration
FID
FID:
44750
-ACCEPTED-
PID/FID
PID:
FID:
4000
44750
-ACCEPTED-
When the ACCEPTED message disappears and the CALIBRATION
menu appears, the SPAN reference value is stored. This value is stored in
non-volatile memory until the next calibration is performed. The date and
time of this calibration are stored and can be accessed through the INFO
menu.
4. If more than one reference span gas concentration has been defined, the
span calibration display returns. Move to the next concentration point
(Up/Dn keys) and repeat steps 2-3 above until each reference gas
concentration point has been calibrated.
Flow Calibration
Use the following procedure to perform a flow calibration.
1. Confirm that the instrument passes the Leak Check on page 7-16 prior
to performing this calibration. A new water trap filter and a new or
clean sintered metal filter should be installed prior to performing this
calibration.
2. From the SETUP MENU, choose 1=Calib > 5=Flow.
3. Establish the 1 ±.01 LPM flow at the probe inlet.
a. Typical values are 50-60% power with 28K-30K counts.
4. Press Enter=Accept to save the Flow 1 values.
5. Attach one of the red flow restrictors between the probe inlet and the
flow meter.
6. Press “2” for the second flow calibration point.
7. Adjust the pump power with the up and down arrows for a reading of 1
±.01 LPM at the probe inlet.
4-18
TVA2020 Instruction Manual
Thermo Fisher Scientific
Calibration
Flow Calibration
a. Typical values are 65-75% power with 29K-31K counts
8. Press Enter=Accept to save the Flow 2 values.
9. Attach a second red flow restrictor, in line with the first, between the
probe inlet and flow meter.
10. Press “3” for the third flow calibration point.
11. Adjust the pump power with the up and down arrows for a reading of 1
±.01 LPM at the probe inlet.
a. Typical values are 85-95% power with 31K-33K counts.
12. Press Enter=Accept to save the Flow 3 values.
13. Press 4= calc coef to calculate the flow calibration values.
Note The flow calibration values are stored in a file called
FACTORY.TXT. This file can be saved to a computer and reloaded to the
instrument if the flow calibration were to become corrupted. See the
section on flash file transfers. ▲
Thermo Fisher Scientific
TVA2020 Instruction Manual
4-19
Chapter 5
Preventive Maintenance
This chapter describes the periodic maintenance procedures that should be
performed on the instrument to ensure proper operation. Since usage and
environmental conditions vary greatly, the components should be inspected
frequently until an appropriate maintenance schedule is determined.
Thermo Fisher Scientific suggests that you return the entire instrument to
the factory or an authorized service center once a year for cleaning, testing,
and calibration.
This chapter includes the following maintenance information and
replacement procedures:
Thermo Fisher Scientific
●
“Safety Precautions” on page 5-2
●
“Replacement Parts” on page 5-2
●
“Battery and Battery Charger” on page 5-2
●
“Hydrogen Gas Tank” on page 5-4
●
“Cleaning the PID Lamp” on page 7-9
●
“Cleaning an FID Cartridge” on page 5-7
●
“Cleaning the FID Detector Cap” on page 5-9
●
“Cleaning the FID Detector Cavities” on page 5-10
●
“Replacing Water Trap Probe Filter and O-Rings” on page 5-11
●
“Cleaning or Replacing a Sintered Metal Filter Cup” on page 5-13
●
“Replacing the Charcoal Filter” on page 5-14
TVA2020 Instruction Manual
5-1
Preventive Maintenance
Safety Precautions
Safety
Precautions
Read the safety precautions before beginning any procedures in this
chapter.
WARNING Never change an electrical component in an area classified as
hazardous due to presence of flammable gases or vapors. ▲
WARNING Parts replacement and maintenance should not be performed
in areas classified as hazardous due to presence of flammable gases or
vapors. Use only Thermo Fisher Scientific replacement parts. (Extended
Service Plans are available; contact Thermo Authorized Service for further
information.) ▲
Replacement
Parts
Battery and
Battery Charger
See the “Servicing” chapter for a list of replacement parts.
You may charge the battery in or out of the instrument or replace it with a
charged battery. For information on replacing the battery, see “Replacing
the Battery” on page 7-6.
WARNING Do not replace battery in an area classified as hazardous due to
presence of flammable gases or vapors. ▲
WARNING Do not operate battery charger in an area classified as
hazardous due to presence of flammable gases or vapors. ▲
WARNING Charger and USB connections are not allowed in an area
classified as hazardous due to presence of flammable gases or vapors. ▲
Battery Warnings
and Precautions
Various safety features have been included in the design of the lithium-ion
battery packs. However, misusing or mishandling the battery packs can
lead to fluid leakage, heat generation, fire or an explosion.
WARNING Misusing or mishandling the battery packs can lead to fluid
leakage, heat generation, fire or an explosion. ▲
5-2
TVA2020 Instruction Manual
Thermo Fisher Scientific
Preventive Maintenance
Battery and Battery Charger
To prevent these situations from occurring and to ensure safe use of the
battery packs, observe the following precautions:
●
Do not use or store the battery packs in environments with high
temperatures, such as in strong, direct sunlight, in vehicles during hot
weather, or directly in front of a heater (80 °C or higher).
●
Do not immerse the battery packs in water. Do not allow them to get
wet.
●
Do not break open or damage the battery packs of the casing of the
lithium-ion batteries. Do not pierce the battery packs with a nail or
other sharp object. Do not strike it with a hammer or step on it.
●
Do not put the battery packs into a microwave oven or pressurized
container.
●
Do not strike, drop, or throw the battery packs.
●
Do not assemble or modify the battery packs or the lithium-ion
batteries located inside the battery packs.
●
Do not install the battery packs into to the TVA2020 if the battery
packs leak electrolyte, change color, change shape, or become deformed
in any other way. If leaked electrolyte comes in contact with your eyes,
flush your eyes immediately. Wash them thoroughly with clean water
and consult physician. If skin or clothing comes in contact with leaked
electrolyte, wash the area immediately with clean water.
●
Do not charge the TVA2020 unit in an environment below 0 °C or
above 40 °C).
●
Do not charge the TVA2020 unit near fire or in an extremely hot
environment.
●
Always properly dispose of the TVA2020 battery packs (recycling is
preferable, contact Thermo Fisher Scientific for further information).
Do not dispose of the battery packs in fire or heat.
Equipment Damage Do not operate the TVA2020 if its case is damaged or
otherwise compromised. ▲
The lithium-ion battery, supplied with the unit, lasts for a minimum of ten
hours of continuous use at 20 °C. Extreme heat or cold and/or use of the
backlight, however, will shorten that time.
A battery charger with cable is shipped with the instrument. You do not
have to remove the battery for charging. Simply plug the output of the
charger into the mating connector marked with the battery symbol in the
instrument. The cable and connectors are keyed. Orient the cable so that
Thermo Fisher Scientific
TVA2020 Instruction Manual
5-3
Preventive Maintenance
Hydrogen Gas Tank
the flat side is facing up. Then, insert the charger plug into the appropriate
wall outlet.
The charger has three LEDs. The left most LED indicates power status.
When green, the charger is ready to charge a battery. Orange or Red
indicates a problem with the charger and should not be used.
Once the instrument is connected to the charger the center LED will light.
The light will initially turn orange for 5 to 10 seconds while measuring the
temperature of the battery. If the battery temperature is within the charging
limits then the light will turn green. If the light turns red the battery may
be too hot or too cold and will not charge until the proper temperature is
reached. If you are sure the temperature is correct then either the battery or
charger is defective.
After the center LED turns green the charger tests the battery to determine
the correct charge state. The right most LED will illuminate as defined
below to indicate the charge state.
●
Orange – Constant current charge state
●
Orange/Green alternating – Constant voltage (90% full charge)
●
Steady Green – Fully charged
●
Red – Indicates the charger or battery is defective and should not be
used.
Normal charge time for a fully discharged battery is approximately eight
hours, or approximately one hour of charge for every hour of use.
The battery can be charged while the instrument is ON and running. It
takes approximately 14 hours to fully charge a battery with the instrument
running.
Do not leave the battery on charge for extended periods (greater than 96
hours). If you wish to remove the battery from the TVA2020 for charging
or swapping with a spare battery, turn the instrument off.
5-4
Safety Test Criteria
The lithium-ion battery packs are designed to meet all U.S. Department of
Transportation (DOT) criteria, per: UN Manual of Tests and Criteria Part
III sub-section 38.3, T1, T2, T3, T4, T5, T7. This is currently pending.
Hydrogen Gas
Tank
FID instruments are supplied with an 85cc hydrogen gas tank. This tank,
which may be pressurized to 2200 psi maximum at 25×C, will provide ten
hours operation when fully charged. The tank has an integrally mounted
high pressure gauge that can be easily read when the tank is in or out of the
instrument. Install the tank in the instrument by inserting it into the
receptacle on the top and tightening (left hand threads, tighten counter-
TVA2020 Instruction Manual
Thermo Fisher Scientific
Preventive Maintenance
Hydrogen Gas Tank
clockwise) until the rubber tank boot is flush with the instrument sidepack
and a slight resistance is felt. Do not overtighten.
WARNING A safe refill operation means there are no hydrogen leaks.
Before any valves are opened, use a wrench to firmly tighten connections to
the hydrogen supply tanks and the tank fill adapter. If escaping hydrogen is
heard during the filling operation, close all valves and correct the leak
before proceeding. Leak test with soapy water or equivalent. ▲
CAUTION Do not fill hydrogen tank to a pressure greater than 15.2 MPa
(2200 psig). ▲
Note Use prepurified ZERO grade hydrogen (certified total hydrocarbons
as methane <0.5 ppm recommended). ▲
Note The hydrogen filling assembly contains a flow-limiting safety device.
Approximately two minutes are required to fill the tank. ▲
Precautions in
Handling and
Storage
The major hazard associated with the handling of hydrogen is flammability.
The following specific rules apply when handling hydrogen:
●
Never use cylinders of hydrogen in areas where flames, excessive heat,
or sparks may occur.
●
Use only explosion-proof equipment and spark-proof tools in areas
where hydrogen is handled.
●
Ground all equipment and lines used with hydrogen.
●
Never use a flame to detect hydrogen leaks — use soapy water.
●
Do not store reserve stocks of hydrogen with cylinders containing
oxygen or other highly oxidizing or combustible materials.
●
Store hydrogen tanks in a well ventilated area.
●
Follow all regulatory safety and labeling precautions when shipping
hydrogen in the TVA2020.
Note A bleeder assembly is provided in the tool kit to allow the hydrogen
tank to be emptied for common carrier shipment. To use the bleeder,
manually screw the bleeder onto the tank valve and allow the hydrogen to
vent. This process will take about two minutes to complete. ▲
Thermo Fisher Scientific
TVA2020 Instruction Manual
5-5
Preventive Maintenance
Hydrogen Gas Tank
CAUTION Observe all hydrogen handling procedures listed below. ▲
Note When transporting the instrument, remove the hydrogen tank and
place it in its normal location in the carrying case. ▲
Fuel Refilling
Procedure
Use the following procedure to refill the hydrogen tank.
Note All hydrogen fittings are left hand thread — do not overtighten. ▲
1. Turn supply tank valve OFF.
2. Attach tank fill adapter to supply tank with valve OFF and with
manifold valve on OFF position.
3. Attach TVA2020 hydrogen tank to tank fill adapter. (Note left hand
thread — do not overtighten.)
4. Open supply tank valve. Move fill adapter valve to FILL position.
5. Wait for TVA2020 tank to fill. This may take 2 to 3 minutes because
of flow restrictors in the tank and fill adapter.
6. Close fill adapter valve.
7. Remove TVA2020 tank.
8. Close supply tank valve.
9. Remove tank fill adapter.
Always remove the tank from the instrument before storing in the
instrument carrying case.
5-6
TVA2020 Instruction Manual
Thermo Fisher Scientific
Preventive Maintenance
Cleaning an FID Cartridge
Cleaning an FID
Cartridge
Use the following procedure to remove and clean the FID cartridge
frequently (Figure 5–1). Replace when needed.
1. Remove the hydrogen tank. Turn the instrument off.
2. Using the special spanner wrench provided with the instrument tool
kit, unscrew the black cap holding the FID cartridge in place.
Figure 5–1. Replacing the FID Cartridge
3. Screw the special extractor tool provided with the accessory kit into the
off-center hole in the cartridge (Figure 5–2).
4. Remove the cartridge by pulling on the extractor. Unscrew the
extractor from the cartridge. Clean or replace the cartridge.
5. To insert a new cartridge, reverse the procedure.
Thermo Fisher Scientific
TVA2020 Instruction Manual
5-7
Preventive Maintenance
Cleaning an FID Cartridge
Figure 5–2. Removing the FID Cartridge
To clean an FID cartridge, you will need a cotton swab and some isopropyl
alcohol. Dip the swab into the isopropyl alcohol and insert it into the
center of the cartridge. Swab the surface until clean and discard the swab.
Take care not to touch the igniter coil, which is located close to the end of
the capsule opposite the threaded hole used to remove capsule. Then dry
the cartridge in an oven at 45 °C to 55 °C for one hour. When dry, reinsert the cartridge into the instrument, reversing the removal procedure.
Do not overtighten cap.
CAUTION Do not allow any contact with the igniter coil during
cleaning. ▲
5-8
TVA2020 Instruction Manual
Thermo Fisher Scientific
Preventive Maintenance
Cleaning the FID Detector Cap
Cleaning the FID
Detector Cap
Use the following procedure to clean the FID detector end cap (Figure 5–
3).
1. Close the hydrogen supply valve on the side of the instrument and turn
off the power.
2. Using the special spanner wrench provided with the tool kit, unscrew
and remove the FID detector cap.
3. Clean the cap using the isopropyl alcohol followed with a de-ionized or
distilled water rinse. Blow out carefully with compressed dry air.
4. Replace the cap.
Figure 5–3. Cleaning the FID Detector Cap
Thermo Fisher Scientific
TVA2020 Instruction Manual
5-9
Preventive Maintenance
Cleaning the FID Detector Cavities
Cleaning the FID
Detector Cavities
Use the following procedure to clean the FID detector cavity.
1. Close the hydrogen supply valve on the side of the instrument. Turn
the instrument off.
2. Using the special spanner wrench provided with the tool kit, unscrew
the cap holding the detector cap.
3. Using the special extractor tool provided with the tool kit, screw the
extractor into the cartridge.
4. Remove the cartridge by pulling on the extractor. Unscrew the
extractor from the cartridge.
5. Carefully clean the inside of the detector cavity using a cotton swab and
isopropyl alcohol. Be sure to clean the high voltage contacts along the
side of the cavity. Be especially careful around the detector signal
collector probe at the rear of the cavity (and the thermocouple probe in
the FID).
6. Dry the inside of the cavity using a low heat gun.
7. Insert the cartridges into their respective cavities by reversing the
procedure. Note that the cartridges must be rotated to properly locate
the key tabs.
5-10
TVA2020 Instruction Manual
Thermo Fisher Scientific
Preventive Maintenance
Replacing Water Trap Probe Filter and O-Rings
Replacing Water
Trap Probe Filter
and O-Rings
Use the following procedure to replace the water trap probe filter (Figure
5–4).
1. Unscrew the bottom housing from the top housing.
2. Remove filter.
3. Place new filter into cavity of top housing.
4. Filter can be inserted in either direction into top housing.
5. Screw bottom housing into top housing.
Probe Nut
Nozzle
Water
Trap
Nozzle Base
O-ring
O-ring
Figure 5–4. Water Trap Probe Assembly - Filter and O-Ring Replacing
Thermo Fisher Scientific
TVA2020 Instruction Manual
5-11
Preventive Maintenance
Replacing Water Trap Probe Filter and O-Rings
Replacing the
O-Rings
Use the following procedure to replace the o-rings (Figure 5–5).
1. Unscrew the bottom housing from the top housing.
2. Remove filter.
3. Remove o-ring from either top housing groove or bottom housing
groove or both as necessary.
4. Place new o-ring in groove of housing. Make sure o-ring is seated
properly in groove.
5. Repeat for other housing if necessary.
6. Place filter into top housing.
7. Screw bottom housing into top housing.
Nozzle
O-ring
Water trap
O-ring
Nozzle Base
Figure 5–5. Water Trap Probe Assembly - Filter and O-Ring Replacing
5-12
TVA2020 Instruction Manual
Thermo Fisher Scientific
Preventive Maintenance
Cleaning or Replacing a Sintered Metal Filter Cup
Cleaning or
Replacing a
Sintered Metal
Filter Cup
The filter cup is located behind the sample line quick connect at the
sidepack assembly. To remove, unscrew the quick connect to expose the
filter (Figure 5–6). Pull the filter cup from behind the fitting and replace
and clean as noted below.
You may clean the filter by immersing it in isopropyl alcohol or equivalent
solvent and/or swabbing the surface with a Q-tip or cotton swab. After
thoroughly cleaning the surface of the filter, place the filter in an oven and
dry it at 40 °C to 55 °C for one hour. You can then re-insert the filter into
the sampling assembly and screw in the cap.
Nut
Filter Holder
O-ring
Spring
Filter Cup
Sample Inlet
O-ring
O-ring
Figure 5–6. Sintered Metal Filter - Cleaning or Replacing
Thermo Fisher Scientific
TVA2020 Instruction Manual
5-13
Preventive Maintenance
Replacing the Charcoal Filter
Replacing the
Charcoal Filter
Use the following procedure to replace the optional charcoal filter.
1. Remove the sampling assembly from the probe by loosening the probe
nut and pulling the sampling assembly free from the probe.
2. Unscrew the cap from the sampling assembly. This will expose the end
of the charcoal filter cartridge (Figure 5–7).
3. Tip the cartridge up and empty the charcoal from the cartridge.
4. Clean the inside of the cartridge with a cotton swab dipped in isopropyl
alcohol.
5. Dry the cartridge thoroughly.
6. Re-fill the cartridge with new “dust-free” charcoal of the type specified
for the filter.
7. Apply PTFE tape to the male threads of the charcoal cartridge and
screw on the cap.
8. Re-insert the sampling assembly into the probe and tighten the probe
nut.
CARTRIDGE
FILLED WITH
ACT IVATED
CH ARCOAL
THREAD ED
EN D WITH
TEFLON
TAPE
CAP
Figure 5–7. Activated Charcoal Filter Adapter
5-14
TVA2020 Instruction Manual
Thermo Fisher Scientific
Chapter 6
Troubleshooting
This chapter provides the following troubleshooting and service support
information:
Thermo Fisher Scientific
●
“Troubleshooting Guide” on page 6-2
●
“Warning Messages” on page 6-6
●
“Service Locations” on page 6-7
TVA2020 Instruction Manual
6-1
Troubleshooting
Troubleshooting Guide
Troubleshooting
Guide
Table 6–1 provides general troubleshooting information and indicates the
checks that you should perform if you experience an instrument problem.
Table 6–1. Troubleshooting
Problem
Possible Reason
Solution/Action
Unit will not turn on
Battery charge low
Charge battery.
Bad battery connection
Ensure proper battery
connection.
Bad battery
Replace battery.
Blown fuse or faulty keypad
Call Thermo Fisher Scientific
Service Department.
Defective pump
Call Thermo Fisher Scientific
Service Department.
Faulty keypad
Call Thermo Fisher Scientific
Service Department.
Clogged sample intake
Clean/replace filter cups.
Pump won’t turn on
Low pump flow
Clean/replace sample line.
Clean/replace flame arrestor.
Service pump.
Pump fault
Call Thermo Fisher Scientific
Service Department.
Keypad will not respond
Faulty keypad
Call Thermo Fisher Scientific
Service Department.
Probe display blank or
probe buttons will not
respond
Faulty probe/display assembly
Replace probe/display
assembly.
Call Thermo Fisher Scientific
Service Department.
FID won’t ignite
Insufficient sample flow
Turn pump on.
Clean/replace filter cups.
Clean/replace flame arrestor.
Service pump.
6-2
TVA2020 Instruction Manual
Insufficient hydrogen supply
(<500 psi)
Check hydrogen gauge on
supply tank. Refill tank if
necessary.
Hydrogen leak
Check low pressure hydrogen
output gauge. If <8 psi, call
Thermo Fisher Scientific
Service Department.
Thermo Fisher Scientific
Troubleshooting
Troubleshooting Guide
Problem
FID noisy
Possible Reason
Solution/Action
Broken ignitor
Inspect ignitor coil on FID
capsule for breakage. If
broken, replace capsule.
Dirty ignitor contacts
Inspect/clean ignitor contacts
(not ignitor coils).
Battery charge low
Charge battery pack.
Water/contamination in the
detector chamber
Clean/replace FID capsule
and flame detector.
Erratic pump flow
Clean/replace cups.
Clean/replace flame arrestor.
Service pump.
Unable to calibrate FID
Bad calibration
Ensure proper calibration.
FID flame out
Ignite FID.
Span concentration not
properly set
Input correct span gas
concentration at CAL menu.
Cal gases contaminated
Use clean cal gases and
sampling equipment.
Sample line/filter cups
contaminated
Clean/replace sample line.
Clean/replace filter cups.
Service pump.
Excessive hydrogen
consumption (<8 hours of
run time for 2200 psi
hydrogen)
Flameout problems
Thermo Fisher Scientific
FID capsule contaminated or
faulty
Clean/replace FID capsule.
Contaminated hydrogen tank
Replace hydrogen tank.
Internal detector fault or
contamination
Call Thermo Fisher Scientific
Service Department.
Insufficient hydrogen pressure
Refill tank.
Leaking hydrogen tank
Replace tank.
Internal hydrogen leak
Call Thermo Fisher Scientific
Service Department.
Sample hydrogen content too
high
Use dilutor kit to achieve
concentration within the
dynamic range.
Insufficient oxygen in the
sample (<14%)
Use dilutor kit to dilute
sample with air
contaminating sufficient
oxygen.
TVA2020 Instruction Manual
6-3
Troubleshooting
Troubleshooting Guide
Problem
Possible Reason
Solution/Action
Use PID for measurements.
FID capsule contamination
Clean/replace FID capsule.
Insufficient sample flow (min
800 ml/min)
Clean/replace filter cups.
Clean/replace flame arrestor.
Service pump.
Moisture at FID flame
arrestor.
Insufficient sample flow (min
800 ml/min)
Clean/replace filter cups.
NOTE: Normal operation produces some moisture. If performance is affected, attempt these
solutions.
Clean/replace flame arrestor.
Service pump.
Insufficient warmup time
Allow 15-20 minutes warmup.
PID lamp not operating
Bad PID lamp
Replace PID capsule.
PID noisy
Bad PID lamp
Replace PID capsule.
Dirty PID window
Clean PID window.
Erratic pump flow
Clean/replace FID capsule.
Clean/replace filter cups.
Service pump.
Unable to calibrate PID
Bad calibration
Ensure proper calibration.
Pump not on
Turn pump on.
PID lamp not on
Turn PID lamp on.
Span concentration not
properly set
Input correct span gas
concentration at CAL menu.
Cal gas contaminated
Use clean cal gases and
sampling equipment.
Sample line/filter cups
contaminated
Clean/replace sample line.
Clean/replace filter cups.
PID window dirty or capsule
contaminated or faulty
Clean PID window.
Replace PID capsule.
Slow response time
Internal detector fault or
contamination
Call Thermo Fisher Scientific
Service Department.
Insufficient sample flow
Clean/replace filter cups.
Clean/replace flame arrestor.
Clean/replace sample line.
6-4
TVA2020 Instruction Manual
Thermo Fisher Scientific
Troubleshooting
Troubleshooting Guide
Problem
Possible Reason
Solution/Action
Service pump.
High background readings
Sampling non-volatile
compounds
Call Thermo Fisher Scientific
Service Department.
High ambient concentration
N/A.
Zero drift/improper
calibration
Ensure proper zero/span
calibration.
Sample line contamination
Clean/replace sample line.
Clean/replace filter cups.
Detector capsule
contamination
Clean/replace FID capsule.
Clean PID window.
Replace PID capsule.
Thermo Fisher Scientific
TVA2020 Instruction Manual
6-5
Troubleshooting
Warning Messages
Warning
Messages
6-6
TVA2020 Instruction Manual
The following is a list of error and warning messages for the TVA2020.
Table 6–2. Warning Messages
Message
Description
Battery Power is low.
This display occurs whenever the battery has reached a low
level (approximately 6.5 V). It indicates that approximately
15 minutes of operating time remain. Press EXIT to return to
the operating display. The lower right corner of all displays
now show ± (blinking). If you continue to operate after the
warning is displayed, the unit will eventually shut off
automatically. To restart after an auto shut down, you must
first recharge or replace the battery. Note that collected
data is not lost
Logger memory is already full.
Log memory is full. You cannot continue to log any entries
until you have transferred the log memory to a PC or have
cleared log memory. The instrument will, however, continue
to operate.
FID Flameout! Ignite again.
This display appears whenever the FID flame is
extinguished. Press EXIT to clear, then CONTROL key and 2
to ignite. This warning is active only in RUN and CALIBRATE
modes. In the RUN mode, once the alarm is acknowledged,
a flashing F appears on the sidepack display and the probe
display flashes.
Low Flow detected.
This message will follow the FID Flameout message if a low
flow condition was measured prior to the flameout.
High Concentration detected.
This message will follow the FID Flameout message if the
instrument sees a spike in the concentration prior to a
flameout condition.
Log rate too slow for PC STEL
calc.
This message appears whenever you enter a log rate value
greater than 90 seconds. The data sampling rate is too low
for valid STEL calculations in the PC. Press EXIT to bypass
the warning.
Log rate invalid!
This message appears whenever you enter a log rate of
zero. To correct the problem, enter a log rate other than
zero.
Entry is invalid!
This message appears whenever you enter a value equal to
zero (except for alarm levels). To correct the problem, enter
numbers other than zero.
Bad Calibration parameters!
This warning display appears during calibration if the
current zero calibration value equals or exceeds the span
calibration value. To correct the problem, perform a re-zero,
a re-span, or both.
Hardware Failure.
This message appears as a result of a self-test failure.
Return the instrument to the factory for service.
Thermo Fisher Scientific
Troubleshooting
Service Locations
Service
Locations
Message
Description
FID not operating.
Displays when the instrument detects a problem with the
FID module. Most common cause is the FID is not plugged
into the main board.
Measurement range
exceeded.
This message appears if the PID reading exceeds 2,000 ppm
or the FID reading exceeds 30,000 ppm.
Service is available from exclusive distributors worldwide. Contact one of
the phone numbers below for product support and technical information
or visit us on the web at www.thermoscientific.com/aqi.
1-866-282-0430 Toll Free
1-508-520-0430 International
Thermo Fisher Scientific
TVA2020 Instruction Manual
6-7
Chapter 7
Servicing
This chapter includes the following parts information and component
replacement procedures.
Thermo Fisher Scientific suggests that you return the entire instrument to
the factory or an authorized service center once a year for cleaning, testing,
and calibration.
From time to time, you must remove and renew several components of the
TVA2020 analyzer. Some components may be replaced as normal
maintenance functions performed by operating personnel. Other
components, however, should be replaced only by personnel thoroughly
trained and familiar with the analyzer instrument and its applications.
This chapter includes the following parts information and component
replacement procedures:
Thermo Fisher Scientific
●
“Replacement Parts List” on page 7-2
●
“Replacing the Battery” on page 7-6
●
“Hydrogen Gas Tank” on page 7-6
●
“Cleaning the PID Lamp” on page 7-9
●
“Replacing the FID End Cap” on page 7-14
●
“Flow Tests” on page 7-14
●
“Leak Check” on page 7-16
●
“Flow Check” on page 7-17
●
“Flow Calibration” on page 7-17
●
“Servicing the Pump” on page 7-19
●
“Replacing the Sample Line in Enhanced Probe” on page 7-23
●
“Replacing Sample Line in Sample Probe” on page 7-25
●
“Replacing the Connector Access Door” on page 7-26
●
“Replacing the Internal Battery Charger Connector Cable” on page 728
●
“Replacing the Internal Probe Connector Cable” on page 7-28
TVA2020 Instruction Manual
7-1
Servicing
Replacement Parts List
Replacement
Parts List
7-2
TVA2020 Instruction Manual
Table 7–1 lists the replacement parts for the TVA2020 major
subassemblies. Refer to Figure 7–1 to identify the component location.
Table 7–1. TVA2020 Replacement Parts
Part Number
Description
56-011811
Battery Pack
114012-00
Hydrogen Tank
CR012WJ
Hydrogen Refill Assembly
111256-00
PID Capsule
111191-00
FID Capsule
111420-00
FID End Cap (FM)
620090
Filter Cups / 5 pk
56-011950
Enhanced Probe (complete assembly)
510033-1
Split Ferrule – Probe (for enhanced probe)
CR012EG
Probe Buttons (for enhanced probe)
CR015AC
Water Trap Probe (for enhanced probe)
CR012EK
Probe Nut (for enhanced probe)
55-011879
Sample Probe (complete assembly)
34-011877-0001
Straight Tip
34-011877-0002
Angled Tip
34-011878
Probe Nut
CR015DK
Water Trap Filter / pk 10 (both probes)
112387-00
Sample Line Tubing 80” (both probes)
112415-00
Sample Line Fitting (both Probes)
CR012YH
Sample Inlet Connection
B0164KB
Sample Side Tubing (12” section of TPFE lined Tygon tubing)
111246-00
Pump Assembly
113305-00
O-Ring Kit
113306-00
Hardware Kit
113413-00
Pump Rebuild Kit
111401-00
Battery Charger
112461-00
Sidepack Display
111409-00
Sidepack Probe Connection
111328-00
Sidepack Charger Connection
Thermo Fisher Scientific
Servicing
Replacement Parts List
Part Number
Description
34-011690-0060
Rubber Connector Door
34-011690-0030
Internal Frame (goes over battery and H2 cylinder)
111782-00
Strap Rods
112694-00
Tool Kit (parts indicated by an asterisk [*] below)
CR012PT
Spanner Wrench (*part of tool kit)
112697-00
Capsule Extraction Tool (*part of tool kit)
112696-00
Flow Restrictors (*part of tool kit)
CR012TA
Hydrogen Bleeder (*part of tool kit)
105639-00
USB Cable
114295-00
USB Barrier Device
112693-00
Charger Cable
N0249XS
Charger Line Cord (120V)
8926
Charger Line Cord (220V)
107315-00
Charger Line Cord (230V – China)
112451-00
Carrying Case
CR012DY
Carrying Strap
WARNING Power down the instrument before performing any service
procedures. ▲
WARNING Parts replacement and maintenance should not be performed
in areas classified as hazardous due to presence of flammable gases or
vapors. Use only Thermo Fisher Scientific replacement parts. (Extended
Service Plans are available; contact Thermo Fisher Scientific Department
for further information.) ▲
WARNING Never change an electrical component in an area classified as
hazardous due to presence of flammable gases or vapors. ▲
Thermo Fisher Scientific
TVA2020 Instruction Manual
7-3
Servicing
Replacement Parts List
Hydrogen Tank
Assy
Battery
Internal Housing
Frame
Instrument Probe
Cable Assy
Sample Inlet
Connector
Charger Cable Assy
PID Assy
Sample Pump
Strap Holder (2)
FID Assy
Connector
Housing Cover
Figure 7–1. TVA2020 Component Layout
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Servicing
Opening the Instrument
3/4-inch Cap Screw
and Washers (3)
Insert Sleeve, 2 1/4-inch
Cap Screw and Washer
Barrel Nut (4)
Figure 7–2. Hardware
Opening the
Instrument
Use the following procedure to gain access to the internal components.
1. Stand the instrument on end. While holding the barrel nut loosen the
socket head screws.
2. Remove the four 10-24 screws to be reused later. Note that one of the
screws is much larger than the other three.
3. Position the instrument resting on its back with the keypad facing up.
4. Grasp the instrument cover near the probe connections and carefully
open the cover to the right.
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TVA2020 Instruction Manual
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Servicing
Replacing the Battery
Replacing the
Battery
Use the following procedure to replace the battery.
WARNING Do not replace battery in an area classified as hazardous due to
presence of flammable gases or vapors. ▲
WARNING Do not operate battery charger in an area classified as
hazardous due to presence of flammable gases or vapors. ▲
WARNING Remove the hydrogen tank from the instrument before
servicing. ▲
1. Identify the four self-tapping screws securing the internal frame to the
bottom enclosure.
2. Remove the four screws. Save for reuse.
3. Unscrew the two captive screws securing the d-sub connector to the
battery.
4. Remove and replace the battery. Reverse the above procedure for
reassembly.
Hydrogen Gas
Tank
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TVA2020 Instruction Manual
FID instruments are supplied with an 85 cc hydrogen gas tank. This tank,
which may be pressurized to 2200 psi maximum at 25×C, will provide 10
hours operation when fully charged. The tank has an integrally mounted
high pressure gauge that can be easily read when the tank is in or out of the
instrument. Install the tank in the instrument by inserting it into the
receptacle on the top and tightening (left hand threads tighten
counterclockwise) until the rubber tank boot is flush with the instrument
sidepack and a slight resistance is felt. Do not overtighten.
Thermo Fisher Scientific
Servicing
Hydrogen Gas Tank
Precautions in
Handling and
Storage
The major hazard associated with the handling of hydrogen is flammability.
The following specific rules apply when handling hydrogen:
●
Never use cylinders of hydrogen in areas where flames, excessive heat,
or sparks may occur.
●
Use only explosion-proof equipment and spark-proof tools in areas
where hydrogen is handled.
●
Ground all equipment and lines used with hydrogen.
●
Never use a flame to detect hydrogen leaks — use soapy water.
●
Do not store reserve stocks of hydrogen with cylinders containing
oxygen or other highly oxidizing or combustible materials.
●
Store hydrogen tanks in a well ventilated area.
●
Follow all regulatory safety and labeling precautions when shipping
hydrogen in the TVA2020.
Note A bleeder assembly is provided in the tool kit to allow the hydrogen
tank to be emptied for common carrier shipment. To use the bleeder,
manually screw the bleeder onto the tank valve and allow the hydrogen to
vent. This process will take about two minutes to complete. ▲
CAUTION Observe all hydrogen handling procedures listed above. ▲
When transporting the instrument, remove the hydrogen tank and place it
in its normal location in the carrying case.
Fuel Refilling
Procedure
Use the following procedure to fill the tank.
WARNING A safe refill operation means there are no hydrogen leaks.
Before any valves are opened, use a wrench to firmly tighten connections to
the hydrogen supply tanks and the tank fill adapter. If escaping hydrogen is
heard during the filling operation, close all valves and correct the leak
before proceeding. Leak test with soapy water or equivalent. ▲
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Servicing
Hydrogen Gas Tank
CAUTION Do not fill hydrogen tank to a pressure greater than 15.2 MPa
(2200 psig). ▲
Note Use prepurified ZERO grade hydrogen (certified total hydrocarbons
as methane <0.5 ppm recommended). ▲
Note The hydrogen filling assembly contains a flow-limiting safety device.
Approximately two minutes are required to fill the tank. ▲
Note All hydrogen fittings are left hand thread — do not overtighten. ▲
1. Turn supply tank valve OFF.
2. Attach tank fill adapter to supply tank with valve OFF and with
manifold valve on OFF position.
3. Attach TVA2020 hydrogen tank to tank fill adapter. (Note left hand
thread — do not overtighten.)
4. Open supply tank valve. Move fill adapter valve to FILL position.
5. Wait for TVA2020 tank to fill. This may take 2 to 3 minutes because
of flow restrictors in the tank and fill adapter.
6. Close fill adapter valve.
7. Remove TVA2020 tank.
8. Close supply tank valve.
9. Remove tank fill adapter.
Always remove the tank from the instrument before storing in the
instrument carrying case.
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Servicing
Cleaning the PID Lamp
Cleaning the PID
Lamp
Use the following procedure to remove and clean the PID lamp. Replace
when needed.
WARNING Power down the instrument before performing any service
procedures. ▲
WARNING To prevent a potential explosion, do not operate the
instrument with the PID compartment open or FID detector cap
removed. ▲
WARNING All maintenance procedures must be performed on a clean
surface using clean tools. Avoid touching the lamp's window as well as the
metalized portion of the cell assembly with your bare fingers. Fingerprints
left on these parts may adversely affect the sensors operation. Latex gloves
are preferred, but if they are not used, your hands must be clean and free of
oils, lotions, etc. It is acceptable to hold the lamp by its glass body or by the
edges of the window. ▲
1. Turn the instrument OFF and remove the sensor from the instrument
(Figure 7–3).
Figure 7–3. Removing the PID Sensor
2. Remove the filter cap by applying slight upward pressure with the tip of
a screwdriver or X-Acto blade just below the hole in the cap and
between the cap and housing; it will pop off (Figure 7–4).
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TVA2020 Instruction Manual
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Servicing
Cleaning the PID Lamp
Figure 7–4. Removing the Filter Cap
3. With fine-tipped tweezers, remove both filter media and set aside
(Figure 7–5).
Figure 7–5. Removing the Filter Media
4. Using the X-Acto blade, remove the spacer and set aside (Figure 7–6).
Figure 7–6. Removing the Spacer
5. With fine tipped tweezers, carefully remove the cell assembly by prying
under the cell’s edge where connector pins are located (Figure 7–7).
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Servicing
Cleaning the PID Lamp
Figure 7–7. Removing the Cell Assembly
6. With fine tipped tweezers, grasp the lamp by placing the tips in the
housing notch and gently pull it out. Be careful not to scratch the lamp
lens or chip edges (Figure 7–8).
Figure 7–8. Removing the PID Lamp
7. Grab the lamp by the cylindrical glass body and clean the window by
rubbing it against the polishing pad. Use a circular motion and try to
keep the window surface flat relative to the pad. Five seconds of
rubbing will be enough in most cases. Another indication of cleaning
completeness is that you have used about 1/6-inch of the pads surface
during the procedure (Figure 7–9).
Figure 7–9. Cleaning the PID Lamp
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TVA2020 Instruction Manual
7-11
Servicing
Cleaning the PID Lamp
8. To reassembly, install the lamp into the sensor, making sure that the
lamps metalized pads are aligned with the corresponding excitation
springs inside the lamp cavity (Figure 7–10).
Figure 7–10. Installing the Lamp into the Sensor
9. With the end of the clean tweezers, or the clean blade of a screwdriver,
press down firmly. Be careful not to scratch the surface of the lamp
(Figure 7–11).
Figure 7–11. Pressing Down the PID Lamp
10. Using fine-tipped tweezers, install the cell assembly. Align the pins with
the corresponding sockets on the sensor and push down on the end
with the pins. Make sure the cell assembly is flush with the lamp
window (Figure 7–12).
Figure 7–12. Installing the Cell Assembly
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Servicing
Cleaning the PID Lamp
11. Place the spacer around the cell assembly (Figure 7–13).
Figure 7–13. Placing the Spacer
12. Place the filter media over the cell assembly centered on top of the
sensor. Make sure the filters are installed in the correct order. Filter
media #2 first, then filter media #1 on top, with the shiny side up
(Figure 7–14).
Figure 7–14. Placing the Filter Media
13. Align the cap key with the notch on the housing. Starting at the side
opposite the notch, press down until the filter cap snaps on to the
housing. If the cap key is incorrectly aligned, there will be a noticeable
bulge on the side of the cap (Figure 7–15).
Figure 7–15. Aligning the Cap Key
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TVA2020 Instruction Manual
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Servicing
Replacing the FID End Cap
Replacing the
FID End Cap
The flame arrestor, located in the center of the FID end cap, is a critical
safety feature to prevent flame propagation into a potentially hazardous
area. It has been precision fit into the end cap and must be replaced as an
assembly.
1. Close the hydrogen supply valve on the side of the instrument and turn
off the power.
2. Using the special spanner wrench provided with the tool kit, unscrew
and remove the FID detector cap.
3. Replace the end cap as a full assembly.
Flow Tests
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TVA2020 Instruction Manual
Most flow problems can be traced to a loose connection or dirty filters.
Based on that premise this section is organized from the least to the most
invasive repair procedures. Reference the Sample Flow Troubleshooting
Flowchart (Figure 7–16) to diagnose flow problems. Start with the Leak
Check procedure with the probe connected to the instrument. The leak
and flow check procedures can be performed on the sub assemblies to
identify the source of the problem.
Thermo Fisher Scientific
Done
Thermo Fisher Scientific
Pass
Pass
Perform Pump
Assembly Service
Fail
Flow Check
Pump Assembly
Fail
Flow Check
Instrument Only
Fail
Flow Check
Instrument and Probe
Pass
Calibrate
(After Service)
Pass
Pass
Fail
Flow Check
Pump Assembly
Troubleshoot Sample
Inlet Assembly for
restriction
Troubleshoot Probe
for restriction
Pass
Leak Check
Instrument and Probe
Fail
Troubleshoot Probe
for leak
Pass
Leak Check
Instrument Only
Sample Flow Troubleshooting Flowchart
Fail
Troubleshoot Sample
Inlet Assembly for
leak
Pass
Leak Check
Pump Assembly
Fail
Leak Check
Pump Assembly
Perform Pump
Assembly Service
Servicing
Flow Tests
Figure 7–16. Sample Flow Troubleshooting Flowchart
TVA2020 Instruction Manual
7-15
Servicing
Leak Check
Leak Check
Use the following procedure to verify no leaks.
1. Attach a flow meter capable of reading a least 2 LPM to the probe inlet.
2. From the SETUP MENU, choose 1=Calib > 5=Flow.
3. Press “1” for the first flow calibration point.
4. Adjust the pump power with the up and down arrows for a reading of 1
LPM at the probe inlet.
5. From the CONTROL MENU, press 1=Pump Off’.
6. Record the counts associated with the pump off.
7. From the CONTROL MENU, press 1=Pump On.
8. Plug the inlet of the probe. The counts should drop to within ±200 of
the “Pump Off” recorded value.
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Servicing
Flow Check
Flow Check
Use the following procedure to check flow.
1. Attach a flow meter capable of reading a least 2 LPM to the probe inlet.
2. Place the instrument in the RUN mode. From the MAIN MENU,
press 1=Run.
Note The dynamic flow control is only active in the Run, Span or Zero
modes. ▲
3. The flow should read between 1.050 LPM and 0.950 LPM.
4. Attach one of the red flow restrictors between the flow meter and the
probe inlet. The flow should drop to 0.80 to 0.85 LPM and slowly
climb to 1.05 to 0.950 LPM within 1-2 minutes.
5. Attach a second flow restrictor in line with the first between the flow
meter and the probe inlet. The flow should drop to 0.80 to 0.85 LPM
and slowly climb to 1.05 to 0.950 LPM within 1-2 minutes.
Note If the pump has been serviced the actual flows may be different than
above. In this case a flow calibration should be performed. ▲
Flow Calibration
Use the following procedure to perform a flow calibration.
1. Confirm that the instrument passes the Leak Check on page 7-16 prior
to performing this calibration. A new water trap filter and a new or
clean sintered metal filter should be installed prior to performing this
calibration.
2. From the SETUP MENU, choose 1=Calib > 5=Flow.
3. Establish the 1 ±.01 LPM flow at the probe inlet.
a. Typical values are 50-60% power with 28K-30K counts.
4. Press Enter=Accept to save the Flow 1 values.
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TVA2020 Instruction Manual
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Servicing
Flow Calibration
5. Attach one of the red flow restrictors between the probe inlet and the
flow meter.
6. Press “2” for the second flow calibration point.
7. Adjust the pump power with the up and down arrows for a reading of 1
±.01 LPM at the probe inlet.
a. Typical values are 65-75% power with 1K-3K higher counts
8. Press Enter=Accept to save the Flow 2 values
9. Attach a second red flow restrictor, in line with the first, between the
probe inlet and flow meter.
10. Press “3” for the third flow calibration point.
11. Adjust the pump power with the up and down arrows for a reading of 1
±.01 LPM at the probe inlet.
a. Typical values are 85-95% power with 1K-3K higher counts.
12. Press Enter=Accept to save the Flow 3 values.
13. Press 4= calc coef to calculate the flow calibration values.
Note The flow calibration values are stored in a file called
FACTORY.TXT. This file can be saved to a computer and reloaded to the
instrument if the flow calibration were to become corrupted. See the
section on flash file transfers. ▲
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Servicing
Servicing the Pump
Servicing the
Pump
Removing the Pump
Assembly
Servicing the pump involves removing the pump assembly, accessing the
orifice, and replacing the pump.
Use the following procedure to remove the pump assembly.
1. Disconnect the 8 pin connector from the pump board (Figure 7–17).
2. Using the correct wrenches, remove the hex elbow attached to the valve
assembly (Figure 7–17).
3. Remove the Tygon tubing from the barb fitting on the sample inlet
assembly (Figure 7–17).
Tygon Tubing
Hex Elbow
8 pin Connector
Figure 7–17. Removing the Pump
4. Lift the pump up and out of the instrument.
5. Disconnect the pump motor from the pump board.
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TVA2020 Instruction Manual
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Servicing
Servicing the Pump
6. Gently remove the tubing from the pressure transducer (both ports)
(Figure 7–18).
7. Loosen the screw on the backside of the board (Figure 7–18).
8. Grasp the pump housing with one hand and the orifice block with the
other.
9. Pull the pump/board assembly away from the orifice block assembly.
Pressure
Transducer
Cross Recess
Screws (2)
Screw
Figure 7–18. Replacing the Pump
Accessing the
Orifice
Use the following procedure to access the orifice.
1. Remove the hex head screw.
2. Pull the orifice block apart.
3. Remove the orifice for cleaning.
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Servicing
Servicing the Pump
4. Apply a very small amount of non-hydrocarbon based grease to the orings to facilitate reassembly.
5. Reinstall the orifice into the L-shaped block first.
6. Reverse the procedure to reassemble the pump assembly.
Note Be sure to push the pump firmly into the orifice block while
tightening the cross recess screw. If the gap is too large the pump will not
fit correctly in the bottom housing recess. ▲
Replacing the Pump
Use the following procedure to replace/service the pump.
1. Remove the two cross recess screws holding the board to the pump
(Figure 7–18).
2. The pump can be further disassembled to replace the diaphragm and
valves.
3. Reverse the above procedures to reassemble the pump assembly.
Replacing the Pump
Valve
Use the following procedure to replace the pump valve.
1. Disconnect the pump from electrical power. Make a sketch of the
position of any tubes and fittings for ease of re-assembly later.
2. Remove the five screws (010) with a Phillips head screw driver and
remove the headplate (020). Check that all parts are free from dirt and
clean as necessary. Do not scratch the parts.
3. Remove the old valveplate (030) from the Compressor housing (040).
4. Repeat steps 2 and 3 for opposite pump head.
5. Place the new valveplate (030) in the contour on the compressor
housing (040). Do not use tools!
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Servicing
Servicing the Pump
6. Install headplate (020) on to compressor housing (040)
7. Install the five new screws using a Phillips head screw driver.
8. Repeat steps 5-7 for opposite head.
Figure 7–19. Exploded View of Pump Head
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Servicing
Replacing the Sample Line in Enhanced Probe
Replacing the
Sample Line in
Enhanced Probe
Use the following procedure to replace the sample line (Figure 7–20).
1. Loosen the probe nut and remove the sampling assembly by pulling it
free from the probe assembly.
2. Insert a thin rod through the hole in the side of the probe fitting
adapter. You will use this rod to pull the adapter and tubing from the
probe assembly.
3. Remove the tubing from the quick-connect fitting by carefully cutting
the tubing.
4. At the base of the probe handle, gently push the tubing into the probe.
At the same time, use the rod to pull the probe fitting adapter and
tubing forward from the probe assembly. When the adapter fitting is
fully exposed, cut the tubing from the fitting and pull the remainder of
the tubing back through the probe assembly until it is completely out
of the probe.
5. Cut a new piece of tubing about three inches longer than the old
tubing.
6. Insert new tubing through the bottom protective covering (where you
connect to the analyzer), and slowly feed the tubing through toward
readout handle.
7. Once the tubing exits the top protective covering, insert the new tubing
into the probe handle and carefully push it through to the other end.
When the tubing is in position, cut the end square and push it over the
barbed adapter fitting.
8. Grasp the tubing below the probe assembly handle and pull it back
through the probe assembly until the adapter fitting is properly seated
in the probe assembly.
9. Cut the other end of the tubing to the proper length and insert it into
the end of the quick-connect fitting. (Allow 5/8-inch of tubing inside
the fitting.)
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TVA2020 Instruction Manual
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Servicing
Replacing the Sample Line in Enhanced Probe
Figure 7–20. Replacing Sample Line in Enhanced Probe
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TVA2020 Instruction Manual
Thermo Fisher Scientific
Servicing
Replacing Sample Line in Sample Probe
Replacing
Sample Line in
Sample Probe
Use the following procedure to replace the sample line in sample probe
(Figure 7–21).
1. Remove the three screws holding the two halves together.
2. Separate the halves to access the tubing.
3. Remove the water trap assembly.
4. Carefully cut the tubing lengthwise to free it from the barbs. Do not
cut too deeply or the barbs could be damaged.
5. Attach the new tubing and return the water trap to either handle half.
Make sure the tubing is routed correctly in the grooves.
6. Reinstall the three screws.
Water Trap
O-ring
O-ring
Tube
Screws (3)
Figure 7–21. Replacing the Sample Line in Simple Probe
Thermo Fisher Scientific
TVA2020 Instruction Manual
7-25
Servicing
Replacing the Connector Access Door
Replacing the
Connector
Access Door
Use the following procedure to replace the connector access door (Figure
7–22).
1. Cut off the retaining tail from the door if needed.
2. Tilt the case top half up so that the cut off piece slips into the gap
between the board and the case.
3. Take the new door and press the retaining tail into the hole. Use a
small blade screwdriver to work the tail into the hole.
Figure 7–22. Replacing the Connector Access Door
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TVA2020 Instruction Manual
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Servicing
Replacing the Internal Battery Charger Connector Cable
Replacing the
Internal Battery
Charger
Connector Cable
Use the following procedure to replace the internal battery charger
connector cable (Figure 7–23).
1. Locate the battery charger connection.
2. Disconnect the charger cable from the main power cable.
3. Remove the two screws holding the connector in the housing.
4. Re-use the screws to mount the new connector cable.
5. Reconnect the main power cable to the new charger cable.
Battery Charger Connector from
Main Power Cable
Screws
Figure 7–23. Replacing the Internal Battery Charger Connector Cable
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TVA2020 Instruction Manual
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Servicing
Replacing the Internal Probe Connector Cable
Replacing the
Internal Probe
Connector Cable
Use the following procedure to replace the internal probe connector cable
(Figure 7–24).
1. Locate the probe connector connection.
2. Disconnect the probe cable from the main board.
3. Loosen the cross recess screw holding the connector assembly in the
housing.
4. Install the new probe connector cable assembly and secure in the
housing.
5. Reconnect the cable to the main board.
Screw
Connector on
Main Board
Figure 7–24. Replacing the Internal Probe Connector Cable
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Chapter 8
Optional Accessories
The TVA2020 is available with the following options:
●
“Sample Probe Option” on page 8-1
●
“Enhanced Probe Option” on page 8-2
●
“Telescoping Extension Option” on page 8-11
●
“Activated Charcoal Filter Adapter” on page 8-12
●
“Bluetooth Communications” on page 8-13
●
“GPS” on page 8-16
For information on additional accessories, such as calibration kits,
enhanced probes, or dilutor kits, please contact Thermo Fisher Scientific.
Sample Probe
Option
The sample probe option is a hand-held device that enables you to take
vapor samples at precise locations. It connects to the instrument by means
of an umbilical. The umbilical has a quick-disconnect fastener. The probe
comes with both a straight tip and a bent tip. The probe ends can be
quickly changed depending on user preference.
Figure 8–1. Sample Probe Option
Thermo Fisher Scientific
TVA2020 Instruction Manual
8-1
Optional Accessories
Enhanced Probe Option
Enhanced Probe
Option
This probe/display option is used to perform menu-driven
operational/datalogging functions from the handheld unit and reduces the
need to access the sidepack keypad.
There are three buttons on the Enhanced Probe which allow you to interact
with the TVA2020:
●
MENU – Used to cause the menu to appear on the bottom of the
probe display and to step through the available selections
●
SELECT – Used to choose the currently highlighted menu selection;
e.g., “LOG”.
●
Light Bulb Icon – Used to turn the display backlight on and off
The probe accepts a single display control message. The message is tested
for validity, and if valid, the display is updated. The probe displays the
contents of the last valid message received since power on.
The display provides two display modes. Both display modes display the
current concentration for one detector:
1. Bar graph value > 0:
Display bar graph
2. Bar graph value = 0:
Displays 6 line x 20 character text
PROBE NUT AND SLEEVE
CLOSE AREA
SAMPLING ASSEMBLY
PROBE KEYPAD
AND DISPLAY
THE CLOSE AREA SAMPLER (*CHARC OAL F ILTER OR
WATER TRAP) CAN BE PLACED DIRECTLY INTO THE
READOUT UNIT OR EXTENDED BY USING THE OPTIONAL
TELESCOPING WAND.
*OPT IONAL
Figure 8–2. Enhanced Probe Option
8-2
TVA2020 Instruction Manual
Thermo Fisher Scientific
Optional Accessories
Enhanced Probe Option
Enhanced Probe
Display
The enhanced probe also has an LCD screen which displays the basic
measurement information. The enhanced probe display is larger (8 line x
20 character display) and is capable of providing several menu-driven
functions. These Menu selections allow the user to start a datalogging
application, switch detectors, ignite the FID, and perform a background
scan. In Fugitive Emissions monitoring applications, the MENU selections
also allow the user to step through a tag route, search for a selected tag,
start a logging event, log repair data, etc. The display, which may be backlit
under low light conditions, is active only in the Run mode. In all other
modes, the display is OFF.
MEASURED VALU E
OVERRANGE INDICATOR
DETECTOR
BEING
DISPLAYED
fid
pid
8.8.8.8.
>>
XXX
MEASUREMENT U NITS
(%, PPM, PPB)
SEGMENTED BARGRAPH
>>>
<MONITOR><
>
>
><DISP PID>
<<<IGNITE><>
<<>CLR MENU>>
MENU
PROBE MENU DISPLAY
BUT TON
SELECT
MENU SELECTOR
BUTT ON
BUTTON FOR
DISPLAY BACKLIGHTING
Figure 8–3. Enhanced Probe Option Display
Thermo Fisher Scientific
TVA2020 Instruction Manual
8-3
Optional Accessories
Enhanced Probe Option
Enhanced Probe Keys
The enhanced probe has three keys, labeled MENU, SELECT, and a lamp
Symbol. MENU and SELECT are multi-functional.
Table 8–1. Enhanced Probe Keys and Functions
Key
The Enhanced Probe
and the RUN Mode
Function
MENU
Press and release this key to show the probe display menu or to move
to the next menu option.
Press and hold this key (approx. 2 seconds) to toggle the info screen
on/off.
SELECT
Press and release this key to select the highlighted menu option.
Lamp Symbol
Press this key to turn the backlight for the probe on or off. As it draws
additional power from the battery and thus shortens instrument run
time, use it only during low light conditions.
Use the following procedure to use the enhanced probe in Run mode.
1. From the MAIN MENU, choose 1=Run.
2. The enhanced probe display will display the detector reading (FID or
PID) at the top and an analog bargraph on the bottom.
PID
Tag:
0.66
ppm
3. Press the MENU key on the Enhanced probe display to show the
Opening menu:
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Optional Accessories
Enhanced Probe Option
PID
Tag:
0.66
ppm
[Enter logging mode]
-Ignite
-other det
-Background
-Exit
The highlighted menu item is the item surrounded by brackets. Pressing
the MENU key will cause the brackets to move from menu item to menu
item. When you reach the menu item you wish to choose, press SELECT.
The Opening menu items are as follows:
Table 8–2. Enhanced Probe Menu
Auto Logging with
the Enhanced Probe
Menu Item
Function
Enter logging mode
Enters FE, VOC, or Auto logging mode, allowing you to enter
tags, toggle through route files, log data, etc. If no logging is
selected in the SETUP menu, then this selection does not
appear.
Ignite
Ignites FID.
Other det
Toggles between FID and PID reading. This selection does not
appear in single detector models.
Background
Records a new background reading.
Exit
Clears the menu and returns to the bar graph display.
Use the following procedure to use the enhanced probe in auto logging
mode.
1. In the RUN mode, from the Opening menu, press the select key to
“Enter logging mode.”
2. Use the sidepack to enter a tag, or simply select “Accept” to enter a
blank tag.
3. Choose “Start log sampling” to begin Auto logging.
4. The Enhanced probe will display the countdown and continue to log
until EXIT is selected at the probe or the sidepack keypad.
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Optional Accessories
Enhanced Probe Option
PID
Tag:
0.66
ppm
0.59ppm
PID
2.50ppm
FID
Sampling:
3s [Exit]
5. Once EXIT is selected, you may enter another tag and begin logging
again or exit from the RUN mode.
VOC Logging with
the Enhanced Probe
Use the following procedure to use the enhanced probe in VOC logging
mode.
1. In the RUN mode, from the Opening menu, press the select key to
“Enter logging mode.”
2. Use the sidepack to enter a tag, or simply select “Accept” to enter a
blank tag.
3. Choose “Start log sampling” to begin Auto logging.
4. The Enhanced probe will display the count down for the interval
selected in the SETUP menu and freeze on the reading to be saved
(Maximum, Average, or Last Reading).
PID
Tag:
0.66
0.59ppm
2.50ppm
[Sav] –Again
ppm
PID
FID
-Exit
5. You may choose to save the reading (SAV), repeat the reading for the
same tag (AGAIN), or return to the previous menu (EXIT).
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Optional Accessories
Enhanced Probe Option
6. Once you have saved a reading, you may enter another tag and begin
logging again or exit from the RUN mode.
FE Logging with the
Enhanced Probe
In FE logging, you follow a preconfigured route list consisting of
component records for equipment to be monitored. You should first
download a route to the TVA2020’s memory before entering the RUN
mode. For more information on downloading routes, see the “Memory”
section in Chapter 3.
In the RUN mode, from the Opening menu, press the select key to “Enter
logging mode.”
0.66
PID
ppm
Tag:0033
Eqp:CMP
Size:
0.00
Leak:
600 RF:0.80
0.66ppm LastLog
[Start log sampling]
-Nx -Pr -List -Exit
In addition to the concentration display at the top, the FE mode shows
several fields which have been filled in by the downloaded route. The
TVA2020 starts at the first record in the route and displays the component
tag number (Tag), equipment type (Eqp), equipment size (Size), and leak
definition (Leak). If a reading has already been logged into memory for this
record, it will also be displayed followed by the words “LastLog.”
Route Entry Response
Factor
A secondary response factor correction is based on the response factor
associated with the current route entry. This secondary correction adjusts
the concentration reading for different component measurements in the
same route.
For example, let a route contain two entries, one for propane and one for
methane. Assume that propane has only half the detector response of
methane. If each route location has a leak of 100 ppm, a single response
factor based on methane would produce a concentration reading of 100
ppm for methane, but only 50 ppm for propane. The addition of a
secondary response factor allows each entry to be corrected for detector
sensitivity. Thus, if the secondary response factor is 1.0 for methane and
2.0 for propane, both route samples will read correctly as 100 ppm.
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Optional Accessories
Enhanced Probe Option
Only the linear correction mode is used for the secondary route response
correction:
Linear:
FinalConc = RouteRF x BackConc
The secondary RouteRF is downloaded to the instrument as part of each
route entry. This factor is applied to both detectors, as it is expected that
when operating in this mode, only one detector will be used. Entries
inserted by the instrument default to a RouteRF of 1.0.
Navigating the Route File
Selecting “Nx” from the first logging mode screen will allow you to step to
the next record in the route. Selecting “Pr” will allow you to step to the
previous record in the route. Selecting “List” will show 10 records per page
for faster searching through the route. You can also enter a tag via the
keypad and the TVA2020 will automatically skip to that tag if it is
contained within the route. If the tag is not contained within the route, a
“TAG NOT FOUND” message will appear and you will be given the
option to “Insert” that tag into the route or “Exit.”
Logging Data
Once you have reached the correct tag for the component you wish to
monitor, you may select “Start log sampling” to begin recording data. The
TVA2020 will display the reading from the selected detector and begin
counting down for the time interval selected in the SETUP menu. The
countdown is shown on the last line of the display:
0.66
PID
ppm
Tag:0019
Eqp:PMP
Size:
0.75
Leak:
50 RF:1.80
0.66ppm
PID
Sampling:
24s [Exit]
Once the countdown is complete, the TVA2020 display will freeze on the
reading to be logged and indicate if it is a leak (i.e., if the reading of the
active detector exceeds the indicated leak rate). You will be given several
options:
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Optional Accessories
Enhanced Probe Option
0.66
PID
ppm
Tag:0019
Eqp:PMP
Size:
0.75
Leak:
50 RF:1.80
0.66ppm
NoLeak
-Repair
[Sav]
–Again
-Exit
If you choose “Sav”, the TVA2020 will store the reading in memory
(replacing any previously logged readings for that Tag) and proceed to the
next component record in the route. If you choose “Again,” the TVA1000B will repeat the countdown and obtain a new reading. If you choose
“Exit” the TVA2020 will return to the previous screen.
Repair Menus
If the reading obtained during the logging interval exceeds the leak
definition, the TVA2020 will indicate that it is a leak by printing “Leaker!”
If you wish, you may record what part of the component is leaking and
what action was taken as a first attempt at repair. Choose “Repair” instead
of “Sav” and the TVA2020 will proceed to the Repair menus:
0.66
PID
ppm
Leak Source: N/A
Repair Method: N/A
[Save & sampl again]
-Select leak source
-Select repair mthd
-Exit
The two lines below the reading show the currently selected leak source and
repair method. Choosing “Select leak source” will allow you to record what
part of the component is leaking by choosing from a list of leak sources
(Valve Bonnet, Compressor Seal, Downstream Flange, Valve Packing,
Pump Seal, Upstream Flange). Choosing “Select repair method” will allow
you to record what method was used for the first attempt at repair (Place
Cap, Gun Pack Valve, Place Plug, Repack Valve, Replace Gasket, Replace,
Seal Job, Steam Seal, Tighten Bonnet, Tighten Cap, Tighten Flange,
Tighten Packing, Tighten Plug, Wash Seal). Choosing “Exit” will return
you to the previous display.
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Optional Accessories
Enhanced Probe Option
If you choose a leak source and repair menu, be sure to select “Sav” when
you return to this menu so the reading and repair information will be saved
in memory before proceeding to the next component record.
Additional Component
Information
Displays containing additional information about the component and the
TVA2020 status are available from the handheld unit. If you press and
hold the MENU key for approximately 2 seconds, the Enhanced display
will present an INFO page:
0.66
PID
ppm
Tag:0020
Area:1515 BEN
Subarea:WEST
Leak:
10
RF:1.00
14:17:52 [Pg] -Exit
The INFO page overwrites the bottom four lines of the record with other
fields such as Location (Loc) and Description (the two lines below the
location). The Location field contains the Area and the Subarea where the
component is located. The Description field displays up to 40 characters of
additional information about the component. Selecting “Pg” at the bottom
of the display will step you through other INFO pages containing
information such as Run ID, Record number, number of points logged,
number of leakers found, number of repairs performed, pump status, free
memory, etc. Selecting “Exit” will return you back to the normal
component record.
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Optional Accessories
Telescoping Extension Option
Telescoping
Extension Option
To use an optional telescoping extension, loosen the probe nut and unplug
the sampling assembly. Next, insert the telescoping wand and tighten the
probe nut. Then, insert the appropriate sampling assembly into the other
end of the extension unit and tighten the retaining nut.
PROBE ASSEMBLY
PROBE NUT
CLOSE AREA SAMPLER
FILTER ADAPTER
TELESCOPING EXTENSION UNIT
Figure 8–4. Telescoping Extension Option
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Optional Accessories
Activated Charcoal Filter Adapter
Activated
Charcoal Filter
Adapter
The Activated Charcoal Filter Adapter is an accessory that can be installed
or attached to the end of the standard probe or to the end of a telescoping
extension. The filter is typically filled with activated charcoal which acts as
an adsorbent and effectively filters out organic vapors other than methane
or ethane.
A screw cap on the probe end may be removed for refilling the filter with
activated charcoal or other filtering medium.
Applications of the filter include:
●
Obtaining a clean air sample for zero baseline check and adjustment.
●
Rapid screening of methane and non-methane organic vapors.
●
Selective screening for natural gas surveys.
The charcoal filter adapter fits directly into the telescoping wand.
The life of the filter depends on the time in use, the types of compounds,
and concentrations of the compounds being filtered. Under typical
industrial air monitoring conditions, the filter will last for many days of
continuous sampling. For information on replacing the charcoal filter, see
“Replacing the Charcoal Filter” on page 5-14.
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Optional Accessories
Bluetooth Communications
Bluetooth
Communications
An optional Bluetooth module may be installed inside the sidepack to
provide a wireless data interface via Bluetooth. Bluetooth is used for Digital
Data Logging, to turn the pump on or off, or to reignite the FID.
The TVA 2020 will advertise the Bluetooth friendly name TVA2020<last
six hex digits of Bluetooth address>. A PC or PDA can then connect to it
using a passkey of 0000.
Bluetooth
Commands
After connecting to the Bluetooth module from a computer or PDA, the
Serial Port Profile (SPP) is used to issue the following commands according
to Table 8–3.
Table 8–3. Bluetooth Commands
Thermo Fisher Scientific
Command
Result
log start
Start Digital Data Logging
log stop
Stop Digital Data Logging
detector pid
Log PID data only
detector fid
Log FID data only
detector pid_fid
Log PID and FID data
ignite
Reignite FID
pump on
Turn pump on
pump off
Turn pump off
screen
Enter screen mode. In screen mode the sidepack
screen is shown, and is updated when the sidepack
screen is changed, or every two seconds.
push co (control)
push do (down)
push en (enter)
push ex (exit)
push le (left)
push ri (right)
push up
push 1
push 2
push 3
push 4
push 5
push 6
push 7
Send key to sidepack (screen mode only)
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Optional Accessories
Bluetooth Communications
Command
Result
push 8
push 9
quit
Exit screen mode
Note The commands are case insensitive. ▲
All commands are terminated by <CR> or <CR><LF>.
If an invalid command is received by the TVA, it will respond with “bad
cmd”. This response is terminated by <CR><LF>.
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Optional Accessories
Bluetooth Communications
Digital Data Logging
(Bluetooth)
If digital data logging is enabled, streaming concentration data is sent out
via Bluetooth at the end of each measurement cycle (once per second)
when the analyzer is in RUN mode. The digital data format is as follows:
Digital data log record:
pppppppppp sssssssss ffffffffff sssssssss aaaaaaaaa ooooooooo hhhh rr nn <CR><LF>
where:
pppppppppp = PID concentration, floating point, right justified,
leading spaces, or
"
“ when PID detector not selected
ffffffffff = FID concentration, floating point, right justified,
leading spaces, or
"
“ when FID detector not selected
sssssssss =
"
",
"OK
",
"DET_OFF ",
"DET_FAIL ",
"OVERFLOW ",
"UNDERFLOW",
"BAD_CALIB",
"CAL_SLOPE",
"CLAMPED ",
"AVG_OVFLW",
"HIGH_ALRM",
"LOW_ALARM",
"STEL_ALRM",
"HIGH&STEL",
"LOW&STEL ",
data status:
detector not selected
no errors or alarms
detector not valid
detector failed, not "DET_OFF"
A/D overflow, not "DET_FAIL"
A/D underflow, not "OVERFLOW"
invalid calibration parameters
calibration sensitivity out of range
an intermediate concentration exceeded 100%
during log point averaging, an overflow occured
high alarm, no STEL, not "UNDERFLOW"
low alarm, no high alarm or STEL, not "UNDERFLOW"
STEL alarm, no low or high alarm, not "UNDERFLOW"
high alarm and STEL, not "UNDERFLOW"
low alarm and STEL, no high alarm, not "UNDERFLOW"
Digital data logging is initially disabled and the logging type is set
according to what detectors are installed so, e.g., if only an FID is installed
the logging type will be set to FID data only logging.
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Optional Accessories
GPS
GPS
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An optional Global Positioning System (GPS) module may be installed
inside the sidepack to add location to the logged data. The GPS module is
based on the SiRF Star III chipset which provides exceptional sensitivity,
even in dense refineries. The module can acquire and track up to 20
satellites simultaneously and provide down to 5 meter resolution. The
following data is provided by the GPS module for inclusion with logged
data and real-time digital data logging:
●
Latitude (Degrees with 5 digits to the right of the decimal)
●
Longitude (Degrees with 5 digits to the right of the decimal)
●
Altitude (Meters)
●
Resolution (Meters)
●
Number of Satellites
Thermo Fisher Scientific
Appendix A
Warranty
Warranty
Seller warrants that the Products will operate or perform substantially in
conformance with Seller's published specifications and be free from defects
in material and workmanship, when subjected to normal, proper and
intended usage by properly trained personnel, for the period of time set
forth in the product documentation, published specifications or package
inserts. If a period of time is not specified in Seller’s product
documentation, published specifications or package inserts, the warranty
period shall be one (1) year from the date of shipment to Buyer for
equipment and ninety (90) days for all other products (the "Warranty
Period"). Seller agrees during the Warranty Period, to repair or replace, at
Seller's option, defective Products so as to cause the same to operate in
substantial conformance with said published specifications; provided that
(a) Buyer shall promptly notify Seller in writing upon the discovery of any
defect, which notice shall include the product model and serial number (if
applicable) and details of the warranty claim; (b) after Seller’s review, Seller
will provide Buyer with service data and/or a Return Material
Authorization (“RMA”), which may include biohazard decontamination
procedures and other product-specific handling instructions; and (c) then,
if applicable, Buyer may return the defective Products to Seller with all
costs prepaid by Buyer. Replacement parts may be new or refurbished, at
the election of Seller. All replaced parts shall become the property of Seller.
Shipment to Buyer of repaired or replacement Products shall be made in
accordance with the Delivery provisions of the Seller’s Terms and
Conditions of Sale. Consumables, including but not limited to lamps,
fuses, batteries, bulbs and other such expendable items, are expressly
excluded from the warranty under this warranty.
Notwithstanding the foregoing, Products supplied by Seller that are
obtained by Seller from an original manufacturer or third party supplier are
not warranted by Seller, but Seller agrees to assign to Buyer any warranty
rights in such Product that Seller may have from the original manufacturer
or third party supplier, to the extent such assignment is allowed by such
original manufacturer or third party supplier.
In no event shall Seller have any obligation to make repairs, replacements
or corrections required, in whole or in part, as the result of (i) normal wear
and tear, (ii) accident, disaster or event of force majeure, (iii) misuse, fault
or negligence of or by Buyer, (iv) use of the Products in a manner for which
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Warranty
Warranty
they were not designed, (v) causes external to the Products such as, but not
limited to, power failure or electrical power surges, (vi) improper storage
and handling of the Products or (vii) use of the Products in combination
with equipment or software not supplied by Seller. If Seller determines
that Products for which Buyer has requested warranty services are not
covered by the warranty hereunder, Buyer shall pay or reimburse Seller for
all costs of investigating and responding to such request at Seller's then
prevailing time and materials rates. If Seller provides repair services or
replacement parts that are not covered by the warranty provided in this
warranty, Buyer shall pay Seller therefor at Seller's then prevailing time and
materials rates. ANY INSTALLATION, MAINTENANCE, REPAIR,
SERVICE, RELOCATION OR ALTERATION TO OR OF, OR
OTHER TAMPERING WITH, THE PRODUCTS PERFORMED BY
ANY PERSON OR ENTITY OTHER THAN SELLER WITHOUT
SELLER'S PRIOR WRITTEN APPROVAL, OR ANY USE OF
REPLACEMENT PARTS NOT SUPPLIED BY SELLER, SHALL
IMMEDIATELY VOID AND CANCEL ALL WARRANTIES WITH
RESPECT TO THE AFFECTED PRODUCTS.
THE OBLIGATIONS CREATED BY THIS WARRANTY
STATEMENT TO REPAIR OR REPLACE A DEFECTIVE PRODUCT
SHALL BE THE SOLE REMEDY OF BUYER IN THE EVENT OF A
DEFECTIVE PRODUCT. EXCEPT AS EXPRESSLY PROVIDED IN
THIS WARRANTY STATEMENT, SELLER DISCLAIMS ALL
OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED, ORAL
OR WRITTEN, WITH RESPECT TO THE PRODUCTS,
INCLUDING WITHOUT LIMITATION ALL IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE. SELLER DOES NOT WARRANT THAT
THE PRODUCTS ARE ERROR-FREE OR WILL ACCOMPLISH
ANY PARTICULAR RESULT.
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Appendix B
Text Data Formats
The TVA2020 supports a USB memory device mode for communications
to a computer. In this mode, the instrument will show up as a USB
memory device and the files are directly accessible via this interface.
The data shown in the USB memory device mode is formatted as printable,
readable ASCII text. All files are read to and written from the root directory
of the file system for the memory device.
The TVA2020 generates files with both <CR> and <LF> at the end of each
line. However, the TVA accepts files with <CR><LF>, just <CR>, or just
<LF>.
At startup and after memory device mode is exited, an evaluation of all
config/cal/factory files is performed and a warning is displayed on the
sidepack if any of the files are in error. In addition, for any files with errors,
a file is created with the same base name and a .ERR extension with the
following format:
Error, line xxxx: mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
where xxx is the line number, and mmmm... is an error description.
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Text Data Formats
Route Database
Route Database
The route database file is stored as ROUTE.TXT with the following
format:
Format
Comments
ROUTE DATABASE<CR><LF>
Title, not processed
VER=xxxxx<CR><LF>
xxxxx=ver, right just, lead spaces
RUN ID=aaaa<CR><LF>
a=0-9, A-Z, a-z
<CR><LF>
Blank line, not processed
ROUTE FIELDS<CR><LF>
Section title, not processed
------------<CR><LF>
Section title, not processed
<route entry field 1>
See below
<route entry field 2>
.
.
.
<route entry field 15>
<CR><LF>
Blank line, not processed
PICKLISTS<CR><LF>
Section title, not processed
---------<CR><LF>
Section title, not processed
<picklist definition 1>
See below
<picklist definition 2>
.
.
.
<picklist definition 6>
<picklist definition LeakSource>
<picklist definition RepairMethod>
<CR><LF>
Blank line, not processed
DISPLAY<CR><LF>
Section title, not processed
-------<CR><LF>
Section title, not processed
<display entry 1>
See below
<display entry 2>
.
.
.
<display entry 6>
<CR><LF>
Blank line, not processed
<route entry header line 1> See below: not processed
<route entry header line 2> See below: not processed
<route entry 1>
See below
<route entry 2>
<route entry 3>
.
.
.
<route entry n>
<CR><LF>
Blank line, not processed
END<CR><LF>
Marks end-of-text
There may be up to 15 route entry fields. The TAG field MUST be
included as the first entry in the database, so the minimum number of
route entry fields is one. Each route entry field consists of three columns of
data: the data type, field width, and title.
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Text Data Formats
Route Database
The first column in the route entry field defines the type of data, as follows:
S
P
N
T
H
L
D
R
C
String (alphanumeric)
Pick List (alphanumeric)
Number (numeric)
Tag (alphanumeric)
Hidden Database Key (alphanumeric)
Leak Rate (numeric)
Dead Band Rate (numeric)
Response Factor (numeric)
Comment (alphanumeric)
The String, Pick List, and Number field types may have more than one
entry in the route fields. All other types may be used only once in the route
fields.
An optional “X” character may be added after the data type to indicate that
that entry field may not be edited, it is only shown on the TAG screen.
The second column of the route entry field defines the field width, which is
used to define data storage size, display data on the probe, and during file
transfers. The sum of all defined fields may not exceed 365 characters. Each
field may not be larger than 60 characters, with the exception of the Tag
field and Pick lists (16 characters).
The third column of the route entry field is the label for the route entry
field, which is displayed as the column header in the route database file and
on the probes as a field prompt. Each label may be no more than 12
characters. Each route entry field is ended with <CR><LF>.
Note that the leak source, repair method, and comment fields are not
actually stored as part of the route entry. Instead these items are stored with
each logged data point. They are included in this section so the user may
define the pick lists and comment field size.
The next section of the file defines the PICKLISTS. There may be up to 8
pick lists included in the database definition (this includes the LeakSource
and RepairMethod lists), but none are required. Each pick list may have up
to 16 items consisting of no more than 16 characters each. The pick list
definition consists of multiple lines of data. The first line is the pick list
label as follows:
LABEL=llllllllllllllll
Where llllllllllllllll is the pick list label which is left justified and terminated
by <CR><LF> at any time (does not require 16 characters). The label must
match the label previously defined in the ROUTE FIELDS section of the
file. Each additional line is a pick list entry. The pick list is terminated by
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Text Data Formats
Route Database
the start of a new pick list label, or by the blank line at the end of the
PICKLISTS section.
There are two special picklists. These picklists are defined using the labels
“LeakSource” and “RepairMethod”. If these picklists are present in the
route database file, they are used for the Leak Source and Repair Method
fields in the logged data. If they are not included in the file, default pick
lists are loaded. Note that the “LeakSource” picklist has a hard-coded size
of 3 characters and the “RepairMethod” picklist has a hard-coded size of 5
characters. The first entry in each of these picklists must be something
equivalent to “N/A”, as these are the default settings indicating that
nothing has been selected from the list.
The next section of the file is the DISPLAY section. This section defines
what database fields are displayed on the Enhanced probe while
monitoring. Since there are only three lines of 20 characters each available
on the display during monitoring, the user may select which fields are
displayed.
The first column of the display field is the label for the route entry field to
be displayed. This must match a label previously defined in the ROUTE
FIELDS section of the file. The second column is the line number (1-3) to
display this field. The third column is the column number (1-20) to start
displaying this field. The fourth column is the number of characters to
display. If the number of characters to be displayed exceeds the number of
characters available on the line, it will be wrapped to the next line. If the
number of characters to display is less than the number of characters
defined in the ROUTE FIELDS section, the first n characters of the field
are displayed. If the number of characters to display is a negative number,
then the last n characters of the field are displayed. An error is reported
when the file is transferred if any of the display fields overlap.
The route header line is composed of route entry field titles (line 1)
centered over an underline of dashes (line 2) for each field. The fields are
delimited with a single space. Each column is of width defined in the route
entry field section. These two lines are ignored when receiving a route
database file, so formatting is not critical.
The route entry format depends on the data in the Route Fields section.
Each field goes from left to right in the order they were defined in that
section. Each field is delimited by a single space. Numbers may be either
left or right justified. Each database entry is ended with <CR><LF>.
Downloaded route entries may be terminated any time after the tag by the
<CR><LF>. Before the first entry is accepted, the instrument’s route and
log memory is cleared. Partial text entries are processed as ending in trailing
spaces. Partial number entries are processed as if complete. The default
value for fields not included in the entry are:
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Text Data Formats
Route Database
Field Type
String
Number
Tag
Hidden
Leak rate
Dead band
Response factor
Default
all spaces
all spaces
all spaces
all spaces
0.00
0.00
1.00
Sample, download, beginning characters only, various lengths:
ROUTE DATABASE
VER= 1.00
RUN ID=0001
ROUTE FIELDS
-----------T 16 Tag
H 16 DBID
P 16 Plant
S 8 Area
SX 8 Subarea
L 5 Max
R 4 RF
S 3 EQP
P 3 EQPick
N 6 Size
S 48 Description
C 32 Comment
PICKLISTS
--------LABEL=Plant
HOUSTON 1
HOUSTON 2
LEFT OF TRACKS
LABEL=EQPick
VLV
FLG
PMP
DISPLAY
------Tag 1 1 16
EQP 2 1 3
Size 2 10 6
Max 3 1 5
RF 3 12 4
Tag
DBID
Plant
Description
---------------- ---------------- -----------------1
1000000001
HOUSTON 1
2
1000000002
HOUSTON 1
3
1000000003
HOUSTON 2
4
1000000004
HOUSTON 2
5
1000000005
LEFT OF TRACKS
Area
Subarea
Max
RF
EQP EQP
Size
-------- -------- ----- ---- --- --- ------ -------------AREA1
AREA2
AREA3
AREA4
AREA5
SUBAREA1
SUBAREA2
SUBAREA3
SUBAREA4
SUBAREA5
0
0
0
0
0
1.00
1.00
1.00
1.00
1.00
N/A
BON
CSL
DFL
PKG
1.00
0.50
1.75
10.00
5.50
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
1
2
3
4
5
END
Thermo Fisher Scientific
TVA2020 Instruction Manual
B-5
Text Data Formats
Route List
Route List
This is a legacy file format for ROUTE.TXT to support older third-party
applications. The route list format is as follows:
Format
Comments
ROUTE LIST<CR><LF>
Title, not processed
VER=xxxxx
xxxxx=ver, left just, trail spaces
RUN ID=aaaa<CR><LF>
a=0-9, A-Z, a-z
<CR><LF>
Blank line, not processed
<route entry header line 1> See below: not processed
<route entry header line 2> See below: not processed
<route entry header line 3> See below: not processed
<route entry 1>
See below
<route entry 2>
<route entry 3>
.
.
.
<route entry n>
<CR><LF>
Blank line, not processed
END<CR><LF>
Marks end-of-text
The route header line is composed of text headers (lines 1 & 2) and an
underline of dashes (line 3). The route header is specified below by
specification of header text for lines 1 & 2 and starting position, all other
characters blank.
Line 3 is a dash character '-' for all route entry characters except the
delimiter (space instead).
Route header:
Header Line 1
Start
0
17
26
35
41
46
50
57
LEAK
RESP
EQP
EQUIP<CR><LF>
Header Line 2
TAG
AREA
SUBAREA
RATE
FACT
TYP
SIZE
DESCRIPTION<CR><LF>
The route entry format is:
Byte
0
16
17
25
26
34
35
B-6
TVA2020 Instruction Manual
Length
16
1
8
1
8
1
5
Item
Tag
delimiter
Area
delimiter
Subarea
delimiter
Leak rate
Format
text
space
text
space
text
space
floating point
Thermo Fisher Scientific
Text Data Formats
Route List
40
41
45
46
49
50
56
57
105
106
1
4
1
3
1
6
1
48
1
1
delimiter
Response factor
delimiter
Equipment type
delimiter
Equipment size
delimiter
Description
<CR>
<LF>
space
floating point
space
text
space
text
space
text
0DH
0AH
Downloaded route entries may be terminated any time after the tag by the
<CR><LF>. Before the first entry is accepted, the instrument’s route and
log memory is cleared. Partial text entries are processed as ending in trailing
spaces. Partial number entries are processed as if complete. The default
value for fields not included in the entry are:
Field
Area
Subarea
Leak rate
Response factor
Equipment type
Equipment size
Description
Default
all spaces
all spaces
0.00
1.00
all spaces
all spaces
all spaces
Sample, download, beginning characters only, various lengths:
ROUTE LIST
VER=1.00
RUN ID=0486
TAG
---------------0123
0124
0124
0125
AREA
-------PLANT 1
PLANT 1
PLANT 1
LEAK RESP EQP EQUIP
SUBAREA RATE FACT TYP SIZE DESCRIPTION
-------- ----- ---- --- ------ ----------SECTION2 10.3 2.00 VLV 5.125 OUTLET
SECTION2 100 1.00 PMP 5.125
SECTION2 100 1.00
END
Thermo Fisher Scientific
TVA2020 Instruction Manual
B-7
Text Data Formats
Configuration
Configuration
The configuration is stored as CONFIG.TXT with the following format
(options are separated by a '|'):
Format
CONFIGURATION<CR><LF>
VER=XX.XX<CR><LF>
<CR><LF>
MODEL=xxxxxxxxxx<CR><LF>
SERIAL NUMBER=idididididid<CR><LF>
DETECTOR=FID|PID&FID<CR><LF>
OPERATOR ID=opopopopop<CR><LF>
<CR><LF>
LOGGING<CR><LF>
-------<CR><LF>
LOG MODE=NONE|AUTO|VOC|FE|CUSTOM<CR><LF>
LOG STORAGE FORMAT=NONE|AUTO|VOC|FEVOC<CR><LF>
LOG SAMPLE TIME=nnn<CR><LF>
LOG SAMPLE TIME UNIT=SEC|MIN<CR><LF>
LOG DATA STORED=SAMPLE|AVERAGE|MAXIMUM<CR><LF>
LOG UNIT LOCK=OFF|PPM|PERCENT<CR><LF>
LOG AUTO REPEAT=OFF|ON<CR><LF>
LOG SAVE MODE=MANUAL|AUTO<CR><LF>
TAG ACTIVE=OFF|ON<CR><LF>
ROUTE ACTIVE=OFF|ON<CR><LF>
<CR><LF>
CALIBRATION<CR><LF>
-----------<CR><LF>
CAL AUTO ACCEPT=OFF|ON<CR><LF>
CAL AUTO SAVE=OFF|ON<CR><LF>
CAL UNIT LOCK=OFF|PPM|PERCENT<CR><LF>
BACKGROUND CORRECTION (PID)=OFF|ON<CR><LF>
BACKGROUND CORRECTION (FID)=OFF|ON<CR><LF>
<CR><LF>
RESPONSE FACTORS<CR><LF>
----------------<CR><LF>
SELECTED=n<CR><LF>
MODE=FACTOR|CURVE<CR><LF>
RF0 (PID)=DEFAULT
1.00 0.00<CR><LF>
RF1 (PID)=nnnnnnnnnn xx.xx +yy.yy<CR><LF>
.
.
.
RF9 (PID)=nnnnnnnnnn xx.xx +yy.yy<CR><LF>
RF0 (FID)=DEFAULT
1.00 0.00<CR><LF>
RF1 (FID)=nnnnnnnnnn xx.xx +yy.yy<CR><LF>
.
.
.
RF9 (FID)=nnnnnnnnnn xx.xx +yy.yy<CR><LF>
<CR><LF>
ALARMS<CR><LF>
------<CR><LF>
STEL (PID)=ffffff PPM|% <CR><LF>
LOW (PID)=ffffff PPM|% <CR><LF>
HIGH (PID)=ffffff PPM|% <CR><LF>
B-8
TVA2020 Instruction Manual
Thermo Fisher Scientific
Text Data Formats
Configuration
STEL (FID)=ffffff PPM|% <CR><LF>
LOW (FID)=ffffff PPM|% <CR><LF>
HIGH (FID)=ffffff PPM|% <CR><LF>
<CR><LF>
USER OPTIONS<CR><LF>
------------<CR><LF>
PROBE=ENHANCED<CR><LF>
KEY CLICK=OFF|ON<CR><LF>
DISPLAY DELAY=SHORT|MEDIUM|LONG<CR><LF>
DIGITAL DATA LOGGING=NONE|FID|PID|PID&FID|SELDET<CR><LF>
BLUETOOTH POWER=OFF|ON<CR><LF>
GPS POWER=OFF|ON<CR><LF>
POWER (PID)=OFF|ON<CR><LF>
POWER (FID)=OFF|ON<CR><LF>
<CR><LF>
END<CR><LF>
Note Lines containing information on uninstalled detector (PID) are not
output. ▲
Note Spaces are allowed in names and other text fields entered by the
user. ▲
Note Number fields are right justified, leading spaces. ▲
Note The second detector repeats the RF names. During download the
last RF name encountered is used. ▲
Note Log parameters must be correct for the specified log mode. ▲
Sample:
CONFIGURATION
VER= 1.00
MODEL=TVA2020
SERIAL NUMBER=123456789012
DETECTOR=PID&FID
OPERATOR ID=USERID
LOGGING
------LOG MODE=NONE
LOG STORAGE FORMAT=NONE
LOG SAMPLE TIME=0
LOG SAMPLE TIME UNIT=SEC
LOG DATA STORED=SAMPLE
LOG UNIT LOCK=OFF
LOG AUTO REPEAT=OFF
LOG SAVE MODE=MANUAL
Thermo Fisher Scientific
TVA2020 Instruction Manual
B-9
Text Data Formats
Configuration
TAG ACTIVE=OFF
ROUTE ACTIVE=OFF
CALIBRATION
----------CAL AUTO ACCEPT=OFF
CAL AUTO SAVE=OFF
CAL UNIT LOCK=OFF
BACKGROUND CORRECTION (PID)=ON
BACKGROUND CORRECTION (FID)=ON
RESPONSE FACTORS
---------------SELECTED=0
MODE=FACTOR
RF0 (PID)=DEFAULT
RF1 (PID)=---------RF2 (PID)=---------RF3 (PID)=---------RF4 (PID)=---------RF5 (PID)=---------RF6 (PID)=---------RF7 (PID)=---------RF8 (PID)=---------RF9 (PID)=---------RF0 (FID)=DEFAULT
RF1 (FID)=---------RF2 (FID)=---------RF3 (FID)=---------RF4 (FID)=---------RF5 (FID)=---------RF6 (FID)=---------RF7 (FID)=---------RF8 (FID)=---------RF9 (FID)=---------ALARMS
-----STEL (PID)=
LOW (PID)=
HIGH (PID)=
STEL (FID)=
LOW (FID)=
HIGH (FID)=
0.00
0.00
0.00
0.00
0.00
0.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
PPM
PPM
PPM
PPM
PPM
PPM
USER OPTIONS
-----------PROBE=ENHANCED
KEY CLICK=OFF
DISPLAY DELAY=MEDIUM
PC LINK TYPE=TEXT-AUTO
DIGITAL DATA LOGGING=PID&FID
BLUETOOTH POWER=ON
GPS POWER=ON
POWER (PID)=ON
POWER (FID)=ON
END
B-10
TVA2020 Instruction Manual
Thermo Fisher Scientific
Text Data Formats
Calibration
Calibration
Successful download of the calibration file resets the background
concentration to zero.
The calibration is stored as CAL.TXT in the following format:
Format
CALIBRATION DATA<CR><LF>
VER=xx.xx
<CR><LF>
<CR><LF>
<detector calibration>
<detector calibration>
END<CR><LF>
Comments
Title, not processed
xx.xx=ver, right just, lead spaces
Blank line, not processed
Blank line, not processed
PID if available, see below
FID if available, see below
Marks end-of-text
The detector calibration format is as follows (note: from 1 to 9 span gas
points are allowed):
ddd CALIBRATION:<CR><LF>
<CR><LF>
CALIB
KNOWN
CALIB
TYPE
CONC
DATE/TIME
----- ---------- ------------------ZERO
aaaaaa uuu dd mmm yy hh:mm:ss
SPAN1 aaaaaa uuu dd mmm yy hh:mm:ss
.
.
.
. .
.
. . .
.
.
.
. .
.
. . .
.
.
.
. .
.
. . .
SPANn aaaaaa uuu dd mmm yy hh:mm:ss
<CR><LF>
<CR><LF>
MEASURED<CR><LF>
CALIB VALUE<CR><LF>
-------------------------<CR><LF>
bbbbbbbb COUNTS fffffffff<CR><LF>
bbbbbbbb COUNTS fffffffff<CR><LF>
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
bbbbbbbb COUNTS fffffffff<CR><LF>
where:
ddd = detector type
"FID"
"PID"
aaaaaa = gas concentration, floating point, right justified,
leading spaces
uuu = concentration units:
"PPM", parts-per-million
"% ", percent
dd = day of calibration, 01-31
mmm = month of calibration, Jan-Dec
yy = year of calibration, 00-99
hh = hour of calibration, 00-23
mm = minute of calibration, 00-59
ss = second of calibration, 00-59
bbbbbbbb = detector reading for calibration gas, integer,
right justified, leading spaces
fffffffff = count status:
"OK
", no errors
"DET_OFF ", detector reading invalid
Thermo Fisher Scientific
TVA2020 Instruction Manual
B-11
Text Data Formats
Calibration
"DET_FAIL ",
"OVERFLOW ",
"UNDERFLOW",
"BAD_CALIB",
"CAL_SLOPE",
"CLAMPED ",
"AVG_OVFLW",
detector failed, not invalid
A/D overflow, not invalid
A/D underflow, not invalid or A/D overflow
invalid calibration parameters
calibration sensitivity out of range
an intermediate concentration exceeded 100%
during log point averaging, an overflow occured
n = span gas number, 2-9
Sample, dual detector:
CALIBRATION DATA
VER= 1.00
PID CALIBRATION:
CALIB
KNOWN
CALIB
MEASURED
TYPE
CONC
DATE/TIME
CALIB VALUE
----- ---------- ------------------- ------------------------ZERO
0 PPM 12 DEC 99 20:20:10
0 COUNTS OK
SPAN1 10.23 PPM 12 DEC 99 20:20:30
123456 COUNTS OK
SPAN2 50.23 PPM 12 DEC 99 20:20:40 1234567 COUNTS OK
SPAN3 100.23 PPM 12 DEC 99 20:20:50 12345678 COUNTS OVERFLOW
FID CALIBRATION:
CALIB
KNOWN
CALIB
MEASURED
TYPE
CONC
DATE/TIME
CALIB VALUE
----- ---------- ------------------- ------------------------ZERO
0 PPM 12 DEC 99 20:20:10
0 COUNTS OK
SPAN1 10.23 PPM 12 DEC 99 20:20:30
123456 COUNTS DET_FAIL
END
B-12
TVA2020 Instruction Manual
Thermo Fisher Scientific
Text Data Formats
Factory
Factory
The factory calibration is stored as FACTORY.TXT with the following
format (options are separated by a '|'):
Format
FACTORY<CR><LF>
VER=XX.XX<CR><LF>
<CR><LF>
<CR><LF>
POINT 1 TIME =xxxxxxxx<CR><LF>
POINT 1 FLAGS =xxxxxxxx<CR><LF>
POINT 1 COUNT =xxxxxxxx<CR><LF>
POINT 1 DUTY =xxxxxxxx<CR><LF>
<CR><LF>
POINT 2 TIME =xxxxxxxx<CR><LF>
POINT 2 FLAGS =xxxxxxxx<CR><LF>
POINT 2 COUNT =xxxxxxxx<CR><LF>
POINT 2 DUTY =xxxxxxxx<CR><LF>
<CR><LF>
POINT 3 TIME =xxxxxxxx<CR><LF>
POINT 3 FLAGS =xxxxxxxx<CR><LF>
POINT 3 COUNT =xxxxxxxx<CR><LF>
POINT 3 DUTY =xxxxxxxx<CR><LF>
<CR><LF>
SLOPE
=xxxxxxxx<CR><LF>
INTERCEPT
=xxxxxxxx<CR><LF>
SUM OF SQUARES=xxxxxxxx<CR><LF>
<CR><LF>
<CR><LF>
END<CR><LF>
Sample:
FACTORY
VER= 1.00
POINT
POINT
POINT
POINT
1
1
1
1
TIME
FLAGS
COUNT
DUTY
=1334746787
=0
=26601
=98
POINT
POINT
POINT
POINT
2
2
2
2
TIME
FLAGS
COUNT
DUTY
=1324747069
=0
=28642
=34
POINT
POINT
POINT
POINT
3
3
3
3
TIME
FLAGS
COUNT
DUTY
=1334747227
=0
=29690
=180
SLOPE
INTERCEPT
Thermo Fisher Scientific
=36.6918
=23264
TVA2020 Instruction Manual
B-13
Text Data Formats
Factory
SUM OF SQUARES=0.934123
END
B-14
TVA2020 Instruction Manual
Thermo Fisher Scientific
Text Data Formats
Calibration History
Calibration
History
The calibration history data is stored as HISTORY.TXT in a read-only
format. This file is generated from data stored in MRAM each time the
instrument is put into USB transfer mode, thus not allowing a user to
change the data in the HISTORY.TXT file. If there are fewer history
records than the maximum allowed (240), the empty records are not
output.
Format
CAL HISTORY<CR><LF>
VER=xx.xx<CR><LF>
<CR><LF>
<cal history header line
<cal history header line
<cal history header line
<cal history data record
.
.
.
<cal history data record
<CR><LF>
END<CR><LF>
Comments
Title, not processed
xxxxx=ver, right just, lead spaces
1>
2>
3>
1>
See
See
See
See
below
below
below
below
240>
Blank line, not processed
Marks end-of-text
Cal history header:
CALIB
KNOWN
CALIB
MEASURED<CR><LF>
DET TYPE
CONC
DATE/TIME
CALIB VALUE<CR><LF>
--- ------ ---------- ------------------- -------------------------<CR><LF>
Cal history data record:
ddd ttttt aaaaaa uuu dd mmm yy hh:mm:ss bbbbbbbb COUNTS fffffffff<CR><LF>
See calibration file description for field details, except for CALIB
TYPE which is (note the * indicates that the calibration was loaded
from a file instead of being performed on the instrument):
tttttt
"ZERO "
"SPAN1 "
"SPAN2 "
"SPAN3 "
"SPAN4 "
"SPAN5 "
"SPAN6 "
"SPAN7 "
"SPAN8 "
"SPAN9 "
"ZERO* "
"SPAN1*"
"SPAN2*"
"SPAN3*"
"SPAN4*"
"SPAN5*"
"SPAN6*"
"SPAN7*"
"SPAN8*"
"SPAN9*"
Thermo Fisher Scientific
TVA2020 Instruction Manual
B-15
Text Data Formats
Calibration History
Sample calibration history file:
CAL HISTORY
VER= 1.00
DET
--FID
PID
FID
PID
FID
FID
B-16
TVA2020 Instruction Manual
CALIB
KNOWN
TYPE
CONC
------ ---------ZERO
0 PPM
ZERO
0 PPM
SPAN1
10.23 PPM
SPAN1* 10.23 PPM
SPAN2
50.23 PPM
SPAN3 100.23 PPM
CALIB
MEASURED
DATE/TIME
CALIB VALUE
------------------- ------------------------12 DEC 99 20:20:10
450 COUNTS OK
12 DEC 99 20:20:10
400 COUNTS OK
12 DEC 99 20:20:30
123456 COUNTS OK
12 DEC 99 20:20:30
123456 COUNTS DET_FAIL
12 DEC 99 20:20:40
1234567 COUNTS OK
12 DEC 99 20:20:50 12345678 COUNTS OVERFLOW
Thermo Fisher Scientific
Text Data Formats
Logged Data
Logged Data
The logged data is stored in binary format in MRAM, when the user enters
the USB transfer mode the software generates the LOG.TXT file.
The logged data is stored as LOG.TXT in the following format:
Format
LOGGED DATA<CR><LF>
VER=xx.xx
<logged data record 1>
.
.
.
<logged data record n>
<CR><LF>
END<CR><LF>
Comments
Title, not processed
xxxxx=ver, right just, lead spaces
See below
Blank line, not processed
Marks end-of-text
The logged data record is different for each data storage type. A header is
printed whenever the data storage type changes, a new auto run starts, or
the configuration (excluding background) changes. The data type records
are:
<auto logging record>
<voc logging record>
<fe logging record>
Auto logged header and data, single detector, GPS off:
<CR><LF>
AUTO DATA tttttttttttttttt<CR><LF>
DATE
TIME
ddd BACKGROUND
ddd CONCENTRATION <CR><LF>
--------- -------- -------------------- --------------------<CR><LF>
dd mmm yy hh:mm:ss xxxxxx uuu fffffffff xxxxxx uuu fffffffff<CR><LF>
Auto logged header and data, dual detector, GPS off:
<CR><LF>
AUTO DATA
DATE
--------dd mmm yy
tttttttttttttttt<CR><LF>
TIME
PID BACKGROUND
-------- -------------------hh:mm:ss xxxxxx uuu fffffffff
PID CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
FID BACKGROUND
-------------------xxxxxx uuu fffffffff
Thermo Fisher Scientific
FID CONCENTRATION <CR><LF>
--------------------<CR><LF>
xxxxxx uuu fffffffff<CR><LF>
TVA2020 Instruction Manual
B-17
Text Data Formats
Logged Data
Auto logged header and data, dual detector and GPS on:
<CR><LF>
AUTO DATA
DATE
--------dd mmm yy
tttttttttttttttt<CR><LF>
TIME
PID BACKGROUND
-------- -------------------hh:mm:ss xxxxxx uuu fffffffff
PID CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
FID BACKGROUND
-------------------xxxxxx uuu fffffffff
FID CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
GPS DATA
<CR><LF>
----------------------------------------<CR><LF>
aaaaaaaaa ooooooooo hhhh rr nn<CR><LF>
VOC logged header and data, single detector, GPS off:
<CR><LF>
VOC DATA<CR><LF>
DATE
TIME
--------- -------dd mmm yy hh:mm:ss
TAG
---------------tttttttttttttttt
ddd BACKGROUND
-------------------xxxxxx uuu fffffffff
ddd CONCENTRATION <CR><LF>
--------------------<CR><LF>
xxxxxx uuu fffffffff<CR><LF>
VOC logged header and data, dual detector, GPS off:
<CR><LF>
VOC DATA<CR><LF>
DATE
TIME
--------- -------dd mmm yy hh:mm:ss
TAG
---------------tttttttttttttttt
PID BACKGROUND
-------------------xxxxxx uuu fffffffff
FID BACKGROUND
-------------------xxxxxx uuu fffffffff
PID CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
FID CONCENTRATION <CR><LF>
--------------------<CR><LF>
xxxxxx uuu fffffffff<CR><LF>
VOC logged header and data, dual detector and GPS on:
<CR><LF>
VOC DATA<CR><LF>
DATE
TIME
--------- -------dd mmm yy hh:mm:ss
TAG
---------------tttttttttttttttt
PID BACKGROUND
-------------------xxxxxx uuu fffffffff
FID BACKGROUND
-------------------xxxxxx uuu fffffffff
PID CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
FID CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
GPS DATA
<CR><LF>
------------------------------<CR><LF>
aaaaaaaaa ooooooooo hhhh rr nn<CR><LF>
B-18
TVA2020 Instruction Manual
Thermo Fisher Scientific
Text Data Formats
Logged Data
FE logged header and data, GPS off:
<CR><LF>
FE DATA
DATE
--------dd mmm yy
TIME
-------hh:mm:ss
ihihihihihih... thththththth...
isisisisisis... tstststststs...
iiiiiiiiiiiiiiii tttttttttttttttt
DET
--ddd
BACKGROUND
-------------------xxxxxx uuu fffffffff
CONCENTRATION
-------------------xxxxxx uuu fffffffff
LEAK
------lllllll
LEAK
SOURCE
-----LLL
REPAIR<CR><LF>
METHOD chchch...<CR><LF>
------ cscscs...<CR><LF>
RRRRR
cccccc...<CR><LF>
FE logged header and data with comment, GPS off:
<CR><LF>
FE DATA
DATE
--------dd mmm yy
TIME
-------hh:mm:ss
ihihihihihih... thththththth...
isisisisisis... tstststststs...
iiiiiiiiiiiiiiii tttttttttttttttt
LEAK
------lllllll
DET
--ddd
BACKGROUND
-------------------xxxxxx uuu fffffffff
LEAK
SOURCE
-----LLL
/
CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
REPAIR<CR><LF>
METHOD chchch...<CR><LF>
------ cscscs...<CR><LF>
RRRRR
cccccc...<CR><LF>
FE logged header and data with GPS data:
<CR><LF>
FE DATA
DATE
--------dd mmm yy
TIME
-------hh:mm:ss
ihihihihihih... thththththth...
isisisisisis... tstststststs...
iiiiiiiiiiiiiiii tttttttttttttttt
LEAK
------lllllll
DET
--ddd
BACKGROUND
-------------------xxxxxx uuu fffffffff
LEAK
SOURCE
-----LLL
REPAIR
METHOD
-----RRRRR
/
CONCENTRATION
/
-------------------- /
xxxxxx uuu fffffffff /
/
chchch.../
cscscs.../
cccccc.../
GPS DATA
<CR><LF>
------------------------------<CR><LF>
aaaaaaaaa ooooooooo hhhh rr nn<CR><LF>
where:
dd = day (01-31)
mmm =
“JAN”,
“FEB”,
“MAR”,
“APR”,
“MAY”,
“JUN”,
“JUL”,
“AUG”,
“SEP”,
“OCT”,
“NOV”,
“DEC”,
month:
January
February
March
April
May
June
July
August
September
October
November
December
yy = Year (00-99)
Thermo Fisher Scientific
TVA2020 Instruction Manual
B-19
Text Data Formats
Logged Data
hh = Hours (0-23)
mm = Minutes (0-59)
ss = Seconds (0-59)
tttttttttttttttt = tag ID left justified space padded.
NOTE: The following DBID fields are only displayed if a
hidden database ID is defined in the route database.
ih... = dbid header (1-16 characters, centered, space padded)
is... = dbid separator (1-16 -)
iii... = dbid (1-16 characters, user defined in route database)
th... = tag header (1-16 characters, centered, space padded)
ts... = tag separator (1-16 -)
ttt... = tag (1-16 characters, user defined in route database)
NOTE: The following comment fields are only displayed if a
Comment is defined in the route database file.
ch... = comment header (0-16 characters, centered, space padded)
cs... = comment separator (0-80 -)
ccc... = comment (0-80 characters, user input during log)
xxxxxx = concentration, floating point, right justified,
leading spaces, or
"------" when DET_OFF
uuu = concentration unit determined by the current unit_lock at
the time of the upload:
"PPB"
"PPM"
"% "
fffffffff =
"OK
",
"DET_OFF ",
"DET_FAIL ",
"BAD_CALIB",
"OVERFLOW ",
"UNDERFLOW",
"CAL_SLOPE",
"CLAMPED ",
"AVG_OVFLW",
"LOW_FLOW ",
"HIGH_ALRM",
"LOW_ALARM",
"STEL_ALRM",
"HIGH&STEL",
"LOW&STEL ",
data status:
no errors or alarms
detector not valid
detector failed, not "DET_OFF"
invalid calibration parameters
A/D overflow, not "DET_FAIL"
A/D underflow, not "OVERFLOW"
calibration sensitivity out of range
an intermediate concentration exceeded 100%
during log point averaging, an overflow occured
low sample flow detected
high alarm, no STEL, not "UNDERFLOW"
low alarm, no high alarm or STEL, not "UNDERFLOW"
STEL alarm, no low or high alarm, not "UNDERFLOW"
high alarm and STEL, not "UNDERFLOW"
low alarm and STEL, no high alarm, not "UNDERFLOW"
ddd = detector:
"PID"
"FID"
lllllll = leak indicator:
" OK ", no leak
"LEAKER!", leak
B-20
TVA2020 Instruction Manual
Thermo Fisher Scientific
Text Data Formats
Logged Data
aaaaaaaaa = GPS latitude, -dd.ddddd, floating point,
right justified, leading spaces
"No Comms "= Module installed, but no communications
"No Data "= Module installed, but no data
"No Power "= Module installed, but power off
"Comm Err "= Module installed, but messages not recognized
oooooooooo = GPS longitude, -ddd.ddddd, floating point,
right justified, leading spaces
"
"= Module installed, but no comms or data
hhhh = GPS altitude, -999 to 9999 meters,
right justified, leading spaces
"
"= Module installed, but no comms or data
rr = GPS Resolution, 5 to 99 meters,
right justified, leading spaces
" "= Module installed, but no comms or data
nn = Number of GPS satellites, 0 to 20,
right justified, leading spaces
" "= Module installed, but no comms or data
Sample, auto and VOC data, low alarm=75ppm, high alarm=100ppm:
LOGGED DATA
VER=2.00
AUTO DATA
DATE
--------01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01 JAN 95
01234
TIME
-------08:31:20
08:32:20
08:33:20
08:34:20
08:35:20
08:36:20
08:37:20
08:38:20
08:39:20
08:40:20
08:41:20
VOC DATA
DATE
---------
TIME
--------
01 JAN 95
01 JAN 95
01 JAN 95
08:05:10
08:15:25
08:25:37
PID CONCENTRATION
-------------------10.02 PPM OK
35.02 PPM OK
75.02 PPM LOW_ALARM
105 PPM HIGH_ALRM
110 PPM HIGH_ALRM
80.12 PPM LOW_ALARM
60.09 PPM OK
50.04 PPM OK
20.03 PPM OK
15.08 PPM OK
9.28 PPM OK
TAG
---------------0500
0501
0502
PID BACKGROUND
-------------------0.02 PPM OK
0.02 PPM OK
0.02 PPM OK
0.02 PPM OK
0.02 PPM OK
0.02 PPM OK
0.02 PPM OK
0.03 PPM OK
0.03 PPM OK
0.03 PPM OK
0.03 PPM OK
PID CONCENTRATION
-------------------10.50 PPM OK
103 PPM HIGH_ALRM
25.67 PPM OK
FID CONCENTRATION
-------------------12.03 PPM OK
40.23 PPM OK
50.11 PPM OK
80.03 PPM LOW_ALARM
101 PPM HIGH_ALRM
91.23 PPM LOW_ALARM
74.98 PPM OK
62.03 PPM OK
41.23 PPM OK
25.98 PPM OK
17.03 PPM OK
PID BACKGROUND
-------------------0.03 PPM OK
0.03 PPM OK
0.04 PPM OK
FID BACKGROUND
--------------0.43 PPM OK
0.43 PPM OK
0.43 PPM OK
0.43 PPM OK
0.43 PPM OK
0.43 PPM OK
0.43 PPM OK
0.39 PPM OK
0.39 PPM OK
0.39 PPM OK
0.39 PPM OK
FID CONCENTRATION
------------------5.30 PPM OK
99.30 PPM OK
5.30 PPM OK
END
Thermo Fisher Scientific
TVA2020 Instruction Manual
B-21
Text Data Formats
Logged Data
Sample, FE data:
LOGGED DATA
VER= 2.00
FE DATA
DATE
--------19 MAR 03
19 MAR 03
19 MAR 03
19 MAR 03
19 MAR 03
19 MAR 03
TIME
-------13:10:35
13:11:02
13:11:14
13:11:35
13:12:20
13:12:38
TAG
---------------1
2
3
3
4
5
LEAK REPAIR
DET
BACKGROUND
CONCENTRATION
LEAK
SOURCE METHOD
COMMENT
--- -------------------- -------------------- ------- ------ ------ -------------------------------PID
0.00 PPM OK
0.00 PPM DET_FAIL
OK
N/A
N/A
THIS IS MY FIRST COMMENT 1234560
PID
0.00 PPM OK
0.00 PPM DET_FAIL
OK
N/A
N/A
PID
0.00 PPM OK
0.00 PPM DET_FAIL
OK
BON
GUNP
PID
0.00 PPM OK
0.00 PPM DET_FAIL
OK
N/A
N/A
ALL FIXED!
PID
0.00 PPM OK
0.00 PPM DET_FAIL
OK
N/A
N/A
A
PID
0.00 PPM OK
0.00 PPM DET_FAIL
OK
N/A
N/A
END
B-22
TVA2020 Instruction Manual
Thermo Fisher Scientific
Appendix C
Response Factors
Response
Factors
The TVA2020 is a portable vapor analyzer for gas survey monitoring. Each
unit is factory calibrated with Methane (in the case of the FID) and
Isobutylene (in the case of the PID). However, both detectors respond to
many different compounds with differing levels of sensitivity. In order to
adjust the analyzer reading from “ppm of Methane” or “ppm of
Isobutylene” to ppm of the compound of interest, a correction factor must
be applied to the reading. This correction factor is also known as a
“Response Factor”.
Response factors can be expressed in several different formats. When you
acquire a response factor from any source, it is important that you
understand the format in which the response factor is expressed so that it
can be applied properly. Following are the two most common response
factor formats:
1. Response Factor Multiplier
The response factor multiplier is the most commonly used and most
widely recognized response factor format. This type of response factor
is calculated by dividing the actual concentration of a compound
introduced to the analyzer by the detector response.
Response Factor Multiplier =
Actual Concentration
Measured Response
For example, if 100 ppm of a compound produces a 50 ppm FID
reading on an analyzer calibrated with methane, then the FID response
factor for that compound would be 2.00 (100 divided by 50).
When a using a response factor multiplier to correct a TVA reading,
simply multiply the analyzer measured response by the response factor.
As in the example given above, if a 50 ppm reading is achieved,
multiply 50 times 2.00 to get the actual concentration (100 ppm).
Response.
Response Factor Mulitplier is what the TVA2020 uses.
Thermo Fisher Scientific
TVA2020 Instruction Manual
C-1
Response Factors
Response Factors
2. Relative Response Factor
In some cases, a response factor may be expressed as a percent or a ratio
of a compound’s response to that of the calibration gas. This type of
response factor is calculated by dividing the detector response by the
actual concentration of a compound of interest.
Relative Response Factor =
Measured Response
Actual Concentration
(Multiply by 100 to express as a percent)
Note that the relative response is the reciprocal of the response factor
multiplier. (i.e. 1/RR = RFM). As in our example above, if 100 ppm of
a compound of interest produces a response of 50 ppm, the relative
response would be 50 divided by 100 (0.50 or 50 %).
When using a relative response factor to correct a TVA2020 reading,
simply divide the analyzer measured response by the relative response
factor expressed as a decimal. As in the example given above, if a 50
ppm reading is achieved, divide 50 by 0.50 to get the actual
concentration (100 ppm).
Like any FID or PID, the TVA2020 will respond to many different
compounds, producing a survey reading of all detectable compounds
present. If a single compound is present, a response factor can be applied to
correct for the response of that compound. If a mixture of compounds is
present, the TVA2020 will respond to all components of the mixture, and
will not differentiate between them. In general, response factors are not
available for mixtures of compounds. However, if the composition of the
mixture is known, a response factor can be calculated by adding weighted
fractions of the response factors of the individual compounds. For instance,
if a 75 % Benzene, 25 % Toluene mixture is to be measured, multiply the
Benzene response factor by 0.75, the Toluene response factor by 0.25 and
add them together to achieve the “weighted” response factor.
The data from a survey analysis may be expressed in a number of different
forms:
1. Relative to the calibration gas
If the compound with which the TVA2020 was calibrated is an
acceptable standard, then results may be expressed in terms of that
compound. For example, an FID reading of 100 ppm could be
C-2
TVA2020 Instruction Manual
Thermo Fisher Scientific
Response Factors
Response Factors
expressed as “100 ppm of Methane” if the calibration gas used was
Methane. Please note that the TVA2020 detectors can be calibrated
with gases other than the factory standards as long as the detector has
adequate response to that compound.
2. Response factor corrected
If the TVA is used to measure a single known compound, a response factor
from this set of response curves can be applied to correct the TVA reading
for that compound. For example, if a survey of Acetone vapors yields a PID
reading of 100 ppm, the response factor multiplier from the Acetone curve
(1.417) could be applied to the reading to obtain the result of 141.7 ppm
Acetone.
3. Relative to a standard other than the calibration gas
If a regulatory agency requires that data be referenced to a standard other
than the calibration gas, the response factor for that standard can be applied
to the reading. For example, suppose that a survey of total volatile organics
must be measured, but the results must be reported in equivalents of
benzene. The FID calibrated with methane can be used and the benzene
response factor applied to correct the reading.
Thermo Fisher Scientific
TVA2020 Instruction Manual
C-3
Response Factors
Response Factors
C-4
TVA2020 Instruction Manual
Thermo Fisher Scientific
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