Reference Manual MultiVision Gas Detector - Jim n

Reference Manual MultiVision Gas Detector - Jim n
Reference
Manual
MultiVision
Gas Detector
Sperian Instrumentation
651 South Main Street
Middletown, CT 06457
800 711-6776 860 344-1079
Fax 860 344 –1068
24SEPT2008
P/N 13-230 Version 2.01
http://www.biosystems.com
1
MULTIVISION PERSONAL PORTABLE GAS DETECTORS
HAVE BEEN DESIGNED FOR THE DETECTION AND
MEASUREMENT
OF
POTENTIALLY
HAZARDOUS
ATMOSPHERIC CONDITIONS
IN ORDER TO ASSURE THAT THE USER IS PROPERLY
WARNED OF POTENTIALLY DANGEROUS ATMOSPHERIC
CONDITIONS, IT IS ESSENTIAL THAT THE INSTRUCTIONS
IN THIS REFERENCE MANUAL BE READ, FULLY
UNDERSTOOD, AND FOLLOWED.
MultiVision
Reference Manual
Sperian Instrumentation Part Number 13-230
Version 2.01
Copyright 2008
by
Sperian Instrumentation, LLC
Middletown, Connecticut 06457
All rights reserved.
No page or part of this operation manual may be reproduced in any form
without written permission of the copyright owner shown above.
Sperian Instrumentation reserves the right to correct typographical errors
2
Table of Contents
Certification Information ................................................................................................. 4
Operating Temperature ................................................................................................... 4
Signal Words ...................................................................................................................5
Warnings and Cautions................................................................................................... 5
1. Description ............................................................................................................... 7
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.5
1.6
1.7
1.8
1.9
1.10
1.10.1
1.10.2
1.11
1.11.1
1.11.2
2.
2.1.1
2.2
2.3
2.4
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.5
2.5
Other electronic safeguards...........................................................................................9
Sensors.........................................................................................................................9
Built-in sample draw pump ............................................................................................9
Black box data recorder...............................................................................................10
MultiVision design components....................................................................................10
MultiVision standard accessories.................................................................................11
Alkaline MultiVision detectors...............................................................................................11
NiMH MultiVision detectors ..................................................................................................11
MultiVision kits ............................................................................................................11
MultiVision Confined Space Kits...........................................................................................11
MultiVision Value Packs.......................................................................................................11
Turning the MultiVision On ..........................................................................................11
Start up with pump...............................................................................................................12
Operating Logic...........................................................................................................13
Turning the MultiVision Off ..........................................................................................14
Alarms.........................................................................................................................14
Warning Alarms...................................................................................................................14
Danger Alarms ....................................................................................................................14
TWA Alarms ........................................................................................................................14
Low battery alarms ..............................................................................................................14
Sensor over range alarms ....................................................................................................15
LEL failure due to lack of oxygen alarm ................................................................................15
PC connection via infrared port....................................................................................15
Error Messages...........................................................................................................15
Sampling ................................................................................................................ 15
3.1
3.1.1
3.2
3.2.1
3.2.2
3.2.2
3.3
4.
Atmospheric hazard alarms....................................................................................................8
Low battery alarms ................................................................................................................8
Sensor over range alarms. .....................................................................................................8
LEL response failure due to lack of O2 alarm ..........................................................................9
Security Beep/Flash...............................................................................................................9
Other alarms and special microprocessor features..................................................................9
Basic Operations ................................................................................................... 11
2.1
3.
Methods of sampling .....................................................................................................7
Multi-sensor capability ...................................................................................................7
Calibration.....................................................................................................................7
Alarm logic ....................................................................................................................7
Manual sample draw kit...............................................................................................16
Manual sample draw kit usage .............................................................................................16
Motorized sample draw pump......................................................................................16
Starting the motorized sample pump ....................................................................................17
Turning off the pump............................................................................................................17
Low flow alarm ....................................................................................................................17
Sample draw probe .....................................................................................................18
Calibration .............................................................................................................. 18
4.1
4.2
Functional (Bump) testing............................................................................................19
Fresh Air/Zero Calibration............................................................................................19
3
4.2.1
4.2.2
4.3
4.3.1
4.3.2
4.4
5.
Fresh air calibration failure ...................................................................................................20
Manual fresh air / zero calibration.........................................................................................20
Span Calibration..........................................................................................................21
Span calibration failure: toxic and LEL sensors .....................................................................21
Span calibration failure: oxygen sensors...............................................................................22
How to calibrate the MultiVision in contaminated air.....................................................23
Basic Maintenance................................................................................................. 23
5.1
5.2
5.3
5.4
5.5
5.5.1
5.5.2
5.5.3
5.6
5.7
5.7.1
5.7.2
5.8
Cleaning......................................................................................................................23
Storage .......................................................................................................................23
Batteries......................................................................................................................23
Replacing alkaline batteries.........................................................................................23
Maintaining NiMH battery packs ..................................................................................24
Storage guidelines for the NiMH battery................................................................................24
Charging guidelines for NiMH battery ...................................................................................24
Charging procedure for NiMH battery ...................................................................................24
Sensor installation .......................................................................................................25
Sample probe assembly ..............................................................................................25
Changing sample probe filters..............................................................................................26
Changing sample probe tubes (wands).................................................................................26
Exploded view and replacement parts list ....................................................................27
Appendices .................................................................................................................... 28
Appendix A Toxic gas measurement – Warning, Danger, STEL and TWA alarms ....................28
1.
2.
3.
Warning and Danger Alarms: ...............................................................................................28
Time Weighted Average (TWA):...........................................................................................28
Short Term Exposure Limits (STEL): ....................................................................................28
Appendix B
Appendix C
Appendix D
Appendix E
Calibration Frequency Recommendation...............................................................29
MultiVision Sensor Information..............................................................................30
Toxic Sensor Cross-Sensitivity..............................................................................30
Basic parts list ......................................................................................................30
Calibration accessories .......................................................................................................................30
Sensors ...........................................................................................................................................30
Miscellaneous.....................................................................................................................................30
Appendix F Sperian Instrumentation Standard Gas Detection Warranty ...................................31
Certification Information
The MultiVision carries the following certifications:
UL Class I Division 1 Groups A,B,C,D Temp Code T4
ATEX Certification: II 2G EEx ia d IIC T4
UL International DEMKO A/S 03 ATEX 0245421X
CSA Class I, Division 1, Groups A, B, C, D Temp Code T3C
Operating Temperature
The MultiVision’s operating temperature range is printed on the
label on the back of the instrument. Use of Sperian Gas Detectors outside of the
instrument’s specified operating temperature range may result in inaccurate and
potentially dangerous readings.
4
Signal Words
The following signal words, as defined by ANSI Z535.4-1998, are used
in the MultiVision Reference Manual.
indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury.
indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
indicates a potentially hazardous situation, which if not
avoided, may result in moderate or minor injury.
CAUTION used without the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in property
damage.
Warnings and Cautions
1.
The MultiVision personal, portable gas detector has been
designed for the detection of dangerous atmospheric conditions. An alarm
condition indicates the presence of a potentially life-threatening hazard and
should be taken very seriously.
In the event of an alarm condition it is important to follow
2.
established procedures. The safest course of action is to immediately leave the
affected area, and to return only after further testing determines that the area is
once again safe for entry. Failure to immediately leave the area may result in
serious injury or death.
Use only Duracell MN1500 or Ultra MX1500, Eveready Energizer
3.
E91-LR6, Eveready EN91, Radio Shack 23-874* size AA 1.5V Alkaline batteries,
Eveready CH15* or Radio Shack 23-149* size AA NiCad batteries, or Eveready
L91*† AA 1.5V Lithium batteries. Substitution of batteries may impair intrinsic
safety.
*Not for use with ATEX certified instruments. (ATEX is a European safety directive).
†Not CSA approved (CSA is the Canadian Standards Association (similar to UL in the United States)).
4.
5.
6.
7.
8.
The accuracy of the MultiVision should be checked periodically
with known concentration calibration gas. Failure to check accuracy can lead to
inaccurate and potentially dangerous readings.
The accuracy of the MultiVision should be checked immediately
following any known exposure to contaminants by testing with known
concentration test gas before further use. Failure to check accuracy can lead to
inaccurate and potentially dangerous readings.
A sensor that cannot be calibrated or is found to be out of
tolerance should be replaced immediately. An instrument that fails calibration
may not be used until testing with known concentration test gas determines that
accuracy has been restored, and the instrument is once again fit for use.
Do not reset the calibration gas concentration unless you are
using a calibration gas concentration that differs from the one that is normally
supplied by Sperian Instrumentation for use in calibrating the MultiVision.
Customers are strongly urged to use only Sperian calibration materials when
calibrating the MultiVision. Use of non-standard calibration gas and/or calibration
kit components can lead to dangerously inaccurate readings and may void the
standard Sperian Instrumentation warranty.
Use of non-standard calibration gas and/or calibration kit
components when calibrating the MultiVision can lead to inaccurate and
potentially dangerous readings and may void the standard Sperian
Instrumentation warranty.
Sperian Instrumentation offers calibration kits and long-lasting cylinders of test
gas specifically developed for easy MultiVision calibration. Customers are
5
strongly urged to use only Sperian calibration materials when calibrating the
MultiVision.
Substitution of components may impair intrinsic safety.
9.
For safety reasons this equipment must be operated and
10.
serviced by qualified personnel only. Read and understand this reference
manual before operating or servicing the MultiVision.
A rapid up-scale reading followed by a declining or erratic
11.
reading may indicate a hazardous combustible gas concentration that exceeds
the MultiVision’s zero to 100 percent LEL detection range.
6
1.
MultiVision incorporates dedicated sensor
channels, which eliminates the need for
laborious reconfiguration procedures.
Note: It is necessary to verify the
accuracy of the MultiVision by
calibration with known concentration
test gas whenever a change is made
to the sensors installed in the
instrument.
Calibration procedures are discussed
in detail in Chapter 4.
The MultiVision uses electrochemical
carbon monoxide and hydrogen sulfide
sensors that have been designed to
minimize the effects of common interfering
gases. These sensors provide accurate,
dependable readings for toxic gases
commonly encountered during confined
space entry and other industrial
applications.
Different measurement units are used
depending on the gas being measured.
Description
The MultiVision is a four-sensor gas
detector that can be configured to meet a
wide variety of requirements. This
chapter provides an overview of many of
the features of the MultiVision. More
detailed descriptions of the specific
features of the MultiVision are contained
in the subsequent chapters of this manual.
1.1
Methods of sampling
The MultiVision may be used in either
diffusion or sample-draw mode. In either
mode, the gas sample must reach the
sensors for the instrument to register a
gas reading. The sensors are located
beneath the sensor cover plate at the top
of the instrument.
In diffusion mode, the atmosphere being
measured reaches the sensors by
diffusing through vents in the sensor
compartment cover. Normal air
movements are enough to carry the
sample to the sensors. The sensors react
quickly to changes in the concentrations
of the gases being measured. Diffusionstyle operation monitors only the
atmosphere that immediately surrounds
the detector.
The MultiVision can also be used to
sample remote locations with the optional
hand-aspirated sample-draw kit or with
the optional built-in, motorized, continuous
sample draw pump. During remote
sampling, the gas sample is drawn into
the sensor compartment through the
probe assembly and a length of tubing.
Remote sampling operations monitor the
atmosphere at the end of the sample draw
probe.
Use of the hand-aspirated sample
draw kits is covered in section 3.1.
Use of the motorized sample draw
pump is covered in section 3.2.
A detailed description of the
MultiVision probe assembly is given
in section 5.7.
1.2
Type of Hazard
Measurement unit
Oxygen (O2)
Percentage by volume
Combustible gas
Percentage of lower
explosive limit (%LEL)
Carbon Monoxide,
Hydrogen Sulfide
Parts per million
(PPM)
Table 1.2 MultiVision Units of Measurement
1.3
Calibration
The MultiVision detector features fully
automatic fresh air and span calibration.
Accuracy of the
MultiVision should be checked
periodically with known
concentration calibration gas.
Failure to check accuracy can lead to
inaccurate and potentially dangerous
readings.
Calibration procedures are discussed
in detail in Chapter 4
Recommended calibration frequency
is discussed in Appendix B.
Use of these procedures is reserved
for authorized personnel.
1.4
Multi-sensor capability
Alarm logic
MultiVision gas alarms can be adjusted
with the MultiVision Programming
Software Package. See the MultiVision
Software Manual for details. Alarms may
be set anywhere within the nominal range
of the specific sensor type. When an
The MultiVision can be configured to
simultaneously monitor oxygen, carbon
monoxide, hydrogen sulfide and
combustible gases and vapors. All
sensors are replaceable in the field. The
7
alarm set point is exceeded a loud audible
alarm sounds, and the bright red LED
alarm lights flash.
parts-per-million-hours and dividing by an
eight-hour period.
Sensor
Warning
Danger
STEL
TWA
CO
35
100
100
35
H2S
10
20
15
10
MultiVision Default Toxic Sensor
Alarm Levels
Appendix A discusses alarm levels
and factory default alarm settings.
1.4.1
Atmospheric hazard alarms
MultiVision portable
gas detectors have been designed for
the detection of deficiencies of
oxygen, accumulations of flammable
gases and vapors, and
accumulations of specific toxic
gases. An alarm condition indicating
the presence of one or more of these
potentially life-threatening hazards
should be taken very seriously.
In the event of an
alarm condition it is important to follow
established procedures. The safest
course of action is to immediately
leave the affected area, and to return
only after further testing determines
that the area is once again safe for
entry. Failure to immediately leave the
area may result in serious injury or
death.
A rapid up-scale
reading followed by a declining or
erratic reading may indicate a
hazardous combustible gas
concentration that exceeds the
MultiVision’s zero to 100 percent LEL
detection range.
The combustible gas alarm is activated
when the percent LEL (Lower Explosive
Limit) gas concentration exceeds any preset alarm level.
Two oxygen alarm set points have been
provided; a danger alarm for low
concentrations associated with oxygen
deficiency and a warning alarm for high
concentrations associated with oxygen
enrichment.
Four alarm set points have been provided
for each toxic gas sensor: Warning,
Danger, STEL and TWA (Time Weighted
Average).
The STEL value displayed by the
MultiVision represents the average
concentration of readings for the target
gas for the most recently completed 15
minutes of operation.
TWA values are calculated by taking the
sum of readings for the target gas in the
current operating session in terms of
1.4.2 Low battery alarms
The MultiVision may be equipped with
either rechargeable NiMH or alkaline
battery packs. Alarms will be activated
whenever battery voltage is too low to
allow the safe operation of the instrument.
The MultiVision’s initial low battery alarm
occurs when battery voltage is reduced to
3.25 volts and is displayed as an empty
battery cell on the right side of the display.
Once the battery voltage reaches 3.0
volts, the MultiVision will automatically go
into alarm, initiate the shut-down
sequence and turn itself off.
For more information concerning the
low battery alarms, see section 2.4.4.
Use only Duracell
MN1500 or Ultra MX1500, Eveready
Energizer E91-LR6, Eveready EN91,
Radio Shack 23-874* size AA 1.5V
Alkaline batteries, Eveready CH15* or
Radio Shack 23-149* size AA NiCad
batteries, or Eveready L91*† AA 1.5V
Lithium batteries. Substitution of
batteries may impair intrinsic safety.
*Not for use with ATEX certified instruments. (ATEX is a
European safety directive).
†Not CSA approved (CSA is the Canadian Standards
Association (similar to UL in the United States)).
1.4.3 Sensor over range alarms.
The MultiVision will go into alarm if a
sensor is exposed to a concentration of
gas that exceeds its established range. In
the case of an LEL reading that exceeds
100% LEL, the LEL channel will be
automatically disabled by the instrument
and the instrument will remain in constant
alarm until it is turned off, brought to an
area that is known to be safe, and then
turned back on. The display will show
“OL” in place of the sensor reading for any
channel that has gone into over range
alarm.
8
See section 2.4.5 for further details on
sensor over range alarms.
A sensor range chart is provided in
Appendix C.
In the event of an LEL
overrange alarm the MultiVision must
be turned off, brought to an area that
is known to be safe and then turned
on again to reset the alarm.
automatically tests the LED alarm lights,
audible alarm, internal memory and pump
status. The battery is monitored
continuously for proper voltage. The
MultiVision also monitors the connection
of sensors that are currently installed.
The detection of any electronic faults
causes the activation of the audible and
visible alarms and causes the display of
the appropriate explanatory message.
If the MultiVision detects
an error in one of the
sensors, the datalogger
or in the instrument itself,
it will display an error
code as shown.
See section 2.5 for error
code definitions.
1.4.4 LEL response failure due to lack
of O2 alarm
The MultiVision features automatic
warning against LEL sensor response
failure due to lack of oxygen. See section
2.4.6 for details.
1.4.5 Security Beep/Flash
The MultiVision includes a security beep
function that is designed to notify the user
that the instrument is powered up and
running. Once enabled the Multivision will
emit a short audible beep and give a short
flash on the LED at a user-defined
interval. The security beep/flash function
may be enabled and the interval may be
changed with either the MultiVision
software package or through the IQ
System Interface.
1.6
The MultiVision can be configured to
simultaneously monitor oxygen, carbon
monoxide, hydrogen sulfide and
combustible gases and vapors. The
sensor configuration of the MultiVision can
be specified at the time of purchase, or
changed in the field by appropriately
trained personnel.
Replacement sensor part numbers and
sensor ranges are given in Appendix B.
Sensor cross-sensitivity figures are
given in Appendix C.
A sensor that cannot
be calibrated or is found to be out of
tolerance must be replaced
immediately. An instrument that fails
calibration may not be used until
testing with known concentration test
gas determines that accuracy has
been restored, and the instrument is
once again fit for use.
Calibration procedures are discussed
in detail in Chapter 4.
1.4.6 Other alarms and special
microprocessor features
MultiVision software includes a number of
additional alarms designed to ensure the
proper operation of the instrument. When
the MultiVision detects that an electronic
fault or failure condition has occurred, the
proper audible and visible alarms are
activated and an explanatory message or
message code is displayed.
The MultiVision is
designed to detect potentially life
threatening atmospheric conditions.
Any alarm condition should be taken
seriously. The safest course of
action is to immediately leave the
affected area, and return only after
further testing determines that the
area is once again safe for entry.
1.5
Sensors
1.7
Built-in sample draw pump
At time of purchase, a motorized sampledraw pump is available for the MultiVision
for situations requiring continuous "hands
free" remote monitoring.
The pump contains a pressure sensor that
detects restrictions in airflow caused by
water or other obstructions being drawn
into the unit and immediately acts to turn
the pump off in order to protect the
Other electronic safeguards
Several automatic programs prevent
tampering and misuse of the MultiVision
by unauthorized persons. Each time the
detector is turned on, the MultiVision
9
Instrumentation’s Technical Service
Department for details.
sensors, pump, and other MultiVision
components from damage.
Pump status is continuously monitored by
the MultiVision microprocessor. When the
pump is active and functioning properly,
“PUMP” is displayed near the center of
the LCD display. Low flow or other pump
fault conditions activate audible and
visible alarms and cause the display of the
appropriate explanatory message.
1.8
1.9
MultiVision design
components
1. Case: The instrument is enclosed in a
metal plated ABS case. A rubber
gasket between the upper and lower
sections of the case protects against
leakage or exposure to liquids.
2. Front face: The front face of the
instrument houses the LCD (liquid
crystal display), alarm light and
audible alarm.
3. Display: A liquid crystal display
(LCD) allows display of readings,
messages, and other information.
4. Alarm lights: Two front-mounted LED
(light emitting diode) alarm lights
provides a visual indication of alarm
state. The lights emit a bright red light
when a sensor alarm level is
exceeded.
5. Infrared Port: Units with the infrared
upgrade will have the infrared port
located on the front of the instrument.
The infrared port is used for
communications between the
MultiVision and a PC.
6. On / Off "MODE" button: The large
black push-button on the left side of
the instrument is called the "MODE"
button. The MODE button is used to
turn the MultiVision on and off as well
as to control most other operations,
including the automatic calibration
adjustment.
7. Sensor compartment cover: The
sensors are located at the top of the
instrument and are protected by a
vented sensor compartment cover. A
water-resistant gasket and inner-liner
protect the instrument against leakage
or exposure to liquids.
8. Audible alarm port: A cylindrical port
extending through the front of the
instrument just below the sensor
compartment cover houses the loud
audible alarm. The waterproof audible
alarm seats directly to the rubber
inner-liner to protect the instrument
against leakage or exposure to liquids.
9. Battery pack: Two types of
interchangeable battery packs
(rechargeable NiMH and disposable
alkaline) are available for use. NiMH
battery packs may be recharged while
Black box data recorder
A black box data recorder is a standard
feature in the MultiVision. The “black box”
is continually in operation whether the
user is aware of it or not. The black box
stores important information such as gas
readings, turn-on times, turn-off times,
temperatures, battery conditions, the most
recent calibration date and settings, types
of sensors currently installed, sensor
serial numbers, warranty expiration and
service due dates, and current alarm
settings.
There is a finite amount of memory
storage available in the black box data
recorder. Once the memory is “full”, the
MultiVision will begin to write the new data
over the oldest data. The black box data
recorder will store approximately 40 hours
of data in one-minute increments. After
40 hours have passed, the MultiVision will
begin to write new data over the oldest
data. In this way, the newest data is
always conserved.
If the MultiVision includes the Infrared
upgrade, then the information in the “black
box” can be downloaded through interface
with either the IQ Controller or through IQ
DataLink.
If the MultiVision does not include the
Infrared upgrade, then the entire
MultiVision instrument must be returned to
Sperian Instrumentation for data
extraction. Once the data is downloaded
from the instrument, a report will be
generated. The unit and the report will
then be returned to the user. Simply call
Sperian’s Instrument Service Department
to obtain a return authorization number.
There is no charge for the downloading
service, but the user is responsible for any
freight charges incurred.
Note: MultiVision instruments must be
returned to Sperian Instrumentation for
the infrared upgrade. Call Sperian
10
the pack is installed in the instrument,
or removed from the instrument for
separate recharging.
10. Battery charger connector: A water
resistant connector at the bottom of
the case assembly is used to connect
the MultiVision to the “drop in” style
charger.
11. Bottom surface: A sturdy clip allows
the user to wear the MultiVision on a
belt or other article of clothing.
standard accessories include NiMH
battery pack and a slip in MultiVision
charger.
1.11
MultiVision kits
MultiVision detectors may also be
purchased as part of a complete kit that
includes calibration gas, fixed-flow
regulator and a hard-shell carrying case.
1.11.1 MultiVision Confined Space Kits
In addition to the standard accessories
listed above, Confined Space Kits also
include calibration fittings, fixed-flow
regulator with pressure gauge, and
appropriate large cylinder(s) of calibration
gas in a foam-lined, waterproof hard-shell
carrying case.
1.11.2 MultiVision Value Packs
MultiVision Value Packs include an
alkaline MultiVision, all standard
accessories, calibration fittings, small
cylinder(s) of calibration gas, and fixed
flow regulator in a foam-lined nonwaterproof hard-shell carrying case.
2.
Figure 1.9
Basic Operations
The MultiVision is a true one-button gas
detector. The MODE button is located on
the left side of the instrument and controls
all field-level operations including the
following
• Turning the MultiVision on and off
• Turning on the backlight
• Viewing the MAX reading screen
• Viewing the TWA screen
• Initiating the calibration sequence
MultiVision Key Features
1.10 MultiVision standard
accessories
Standard accessories included with every
MultiVision include calibration adapter,
additional tubing for use during calibration,
reference manual and quick reference
card.
The optional sample draw kit consists of a
sample draw / calibration adapter,
squeeze bulb, replacement sample probe
filters, and ten feet of tubing. The sample
probe is available separately.
Standard configurations of the MultiVision
are delivered in a foam-lined box.
2.1 Turning the MultiVision On
To turn the MultiVision on, press and hold
the MODE button for one second. The
first screen is the test screen for the LCD
and all sections should be lit.
1.10.1 Alkaline MultiVision detectors
If the MultiVision has been purchased as
an alkaline instrument, the standard
accessories include an alkaline battery
pack and a set of 3 disposable AA alkaline
batteries.
Note: The startup sequence takes
approximately 50 seconds to
complete. To reduce the time and
number of screens in the startup
sequence, press the MODE button
once the instrument turns on.
1.10.2 NiMH MultiVision detectors
If the MultiVision has been purchased as
a NiMH rechargeable instrument, the
11
The next screen shows the firmware
version. “dL” will appear in the upper right
for instruments with a fully enabled
datalogger.
equipped MultiVision instruments see
section 2.1.1 below.
The instrument temperature will then be
shown.
After the firmware version, MultiVision will
briefly list the sensors that are currently
recognized by the instrument.
The warning alarm levels screen will then
be shown followed by the danger, STEL
and TWA alarm levels screens.
→
→
The serial number screen will be shown
next.
→
Following the danger alarm level screens,
the calibration due screen will be shown
with the number of days until the next
calibration.
If the MultiVision is equipped with a fully
enabled datalogger, then the following
screen will be shown. The time figure in
the upper right corner indicates the
sampling interval in minutes and seconds.
The MultiVision will then proceed to the
current gas readings screen.
The time will then be shown followed by
the date:
→
2.1.1 Start up with pump
MultiVision instruments that are equipped
with a built-in motorized sample draw
pump will have a slightly longer start up
sequence. After the calibration due
screen, the MultiVision will prompt you to
leak test the pump.
Note: The sample probe assembly
must be attached when the pump is
started.
The instrument will display “Self Test” as it
performs a few operational checks.
During the self test, the MultiVision tests
for installed sensors, performs a system
memory check and tests to see if a
motorized pump is installed in the
instrument. If the MultiVision contains an
internal motorized sample pump, it will be
briefly activated during the self test. For
details on start up procedures for pump-
Block the sampling inlet by placing a
finger over the end of the sample probe
12
hazardous location may result in
serious injury or death.
For instruments with a pump, the pump
status is shown as “PUMP” or “PUMP
OFF”.
assembly. Once the MultiVision
recognizes that the sample has been
blocked, it will instruct you to remove the
blockage.
or
Once the blockage is removed, the
MultiVision will proceed to the current gas
readings screen.
The battery icon at right gives an
indication of how much power is left in the
battery. The illustration below shows the
stages of the battery from full to empty
(left to right).
For information concerning proper
attachment of the sample probe assembly
to pump-equipped MultiVision
instruments, see section 3.1.
To turn on the backlight press the MODE
button once.
To view the MAX readings screen, press
the MODE button a second time.
2.2 Operating Logic
Once the MultiVision has completed the
start up sequence, the current gas
readings screen will be shown.
Press the MODE button a third time to
view the Time Weighted Averages (TWA)
for the operating session.
If a sensor is not detected in one of the
sensor channels during start up, the
reading in the designated sensor channel
will show two dashes “--“ instead of a
readout. If a complete sensor failure
occurs while the instrument is turned off,
the instrument may operate as if the
sensor is not present in the instrument. In
the example at right, the LEL sensor has
not been detected and a reading of “--“ is
shown. The MultiVision only detects those
substances that have actual readings in
the current gas readings screen during the
current operating session.
Note: The TWA screen will not be
shown if the TWA screen has been
disabled with the MultiVision software
package. See the MultiVision Software
Manual for details.
Note: The MultiVision must be in
continuous operation for at least 15
minutes before it will be able to
calculate the TWA values. For the first
15 minutes of any operating session,
the screen will show the length of time
that the instrument has been operating
instead of the TWA values.
: Always verify that all
sensors present in the instrument are
shown with an actual reading on the
current gas readings screen whenever
the MultiVision is turned on. Failure to
verify sensor presence prior to use in a
13
2.3 Turning the MultiVision Off
To turn the MultiVision off, press and hold
the MODE button until the display reads
“Release Button”.
2.4.3 TWA Alarms
TWA alarms only apply to toxic sensor
channels. TWA values are calculated by
taking the sum of exposure to a particular
toxic gas in the current operating session
in terms of parts-per-million-hours and
dividing by an eight-hour period. The
default TWA alarm level for the
MultiVision CO sensor is 35PPM. The
default TWA value for the MultiVision H2S
sensor is 10PPM.
Once the MODE button is released, the
MultiVision display will briefly show OFF
and then go blank.
2.4
2.4.4 Low battery alarms
Whenever battery voltage is
reduced to approximately 3.25
volts, the battery icon on the LCD
will appear empty, which means
that a low battery condition
exists.
If the battery icon is empty, leave the area
immediately. If the MultiVision is
equipped with an alkaline battery pack,
proceed to an area that is known to be
safe area (containing 20.9% oxygen, 0%
LEL and 0 PPM toxic gases) and change
the batteries. If the MultiVision is
equipped with a NiMH battery pack,
proceed to an area that is known to be
safe and recharge the battery pack.
When battery voltage reaches
approximately 3.0 volts, the MultiVision is
no longer safe to use with the current
battery pack. The screen will briefly
display a “0-BAT” warning and give a tensecond countdown. At the end of the
countdown, the MultiVision will turn itself
off.
The MultiVision must
be located in a non-hazardous
location during the charging cycle.
Charging the MultiVision in a
hazardous location may impair
intrinsic safety.
Alarms
The MultiVision is configured with a series
of alarms that are designed to warn the
user of dangerous conditions.
The MultiVision is
designed to detect potentially life
threatening atmospheric conditions.
Any alarm condition should be taken
seriously. The safest course of
action is to immediately leave the
affected area, and return only after
further testing determines that the
area is once again safe for entry.
2.4.1 Warning Alarms
Warning alarms indicate a dangerous
atmospheric condition that has not yet
risen to the level necessary to initiate the
danger alarms. Warning alarm levels are
shown during the start up sequence.
Warning alarms can be temporarily
silenced by pressing the MODE button if
this option is enabled with BioTrak in
datalogger-equipped models.
2.4.2 Danger Alarms
Danger alarms indicate a significantly
hazardous condition and are also shown
in the start up sequence.
The MultiVision must
be located in a non-hazardous
location whenever alkaline batteries
are removed from the alkaline battery
pack. Removal of the alkaline
batteries from the battery pack in a
14
hazardous area may impair intrinsic
safety.
2.5
port
CAUTION: Always turn the
MultiVision off prior to removing the
battery pack. Removal of the battery
pack with the instrument turned on
may cause corruption of stored data in
the MultiVision.
MultiVision instruments that are equipped
with a fully enabled datalogger can be
downloaded to a PC using Sperian’s
BioTrak or IQ software through the
MultiVision’s infrared port. For the
location of the infrared port, see figure 1.9
above.
1. With the MultiVision turned off, hold
the MODE button down until four
beeps are heard. Depending on the
software version, this will normally
take between 10 and 20 seconds.
The following screen will be shown
once the infrared port has been
activated.
2.4.5 Sensor over range alarms
The MultiVision will go into alarm if a
sensor is exposed to a concentration of
gas that exceeds its established range. In
the case of an LEL reading that exceeds
100% LEL, the LEL channel will be
automatically disabled by the instrument
and the alarm will latch (remain on) until
the instrument is turned off. The
MultiVision must be turned off, brought to
an area that is known to be safe
(containing 20.9% oxygen, 0% LEL and 0
PPM toxic gases), and then turned back
on. The display will show “OL” in place of
the sensor reading for any channel that
has gone into over range alarm.
PC connection via infrared
2. Align the infrared port on the
MultiVision with the PC’s infrared port
to complete the connection.
Note: For further instructions
concerning the download procedure
for the MultiVision, see the BioTrak
or IQ System manual as appropriate.
2.5
Error Messages
The MultiVision
microprocessor monitors
the instrument
continuously. When a
problem is found the
instrument will show an
error message.
In the event of an
LEL overrange alarm the MultiVision
must be turned off, brought to an
area that is known to be safe
(containing 20.9% oxygen, 0% LEL and
0 PPM toxic gases), and then turned
on again to reset the alarm.
MultiVision Error Messages
UNIT_MEMORY
O2_MEMORY
LEL_MEMORY
CO_MEMORY
H2S_MEMORY
DATALOGGER_CRC
NO_SENSORS
2.4.6 LEL failure due to lack of
oxygen alarm
The LEL sensor in the MultiVision requires
a certain amount of oxygen to function
properly. When oxygen levels fall below
11% by volume, the MultiVision will show
“---“ in place of the LEL reading.
3
4
5
6
7
8
10
If an error message is shown, stop using
the detector and contact Sperian
Instrumentation or you local distributor
for further information.
3.
Sampling
The MultiVision may be used in either
diffusion or sample-draw mode. In either
mode, the gas sample must reach the
sensors for the instrument to register a
15
gas reading. The sensors are located
near the top of the instrument underneath
the sensor compartment cover plate.
In diffusion mode, the atmosphere being
measured reaches the sensors by
diffusing through vents in the sensor
compartment cover plate. Normal air
movements are enough to carry the
sample to the sensors. The sensors react
quickly to changes in the concentrations
of the gases being measured. Diffusionstyle operation monitors only the
atmosphere that immediately surrounds
the detector.
The MultiVision can also be used to
sample remote locations with either the
optional hand-aspirated sample-draw kit,
or with the optional built-in, motorized
sample draw pump. During remote
sampling, the gas sample is drawn into
the sensor compartment through the
probe assembly and a length of tubing.
3.1
connect the other end of
the hose to the sample
probe as shown.
2. To test the seals in the
sample draw system,
cover the end of the
sample draw probe with a
finger, and squeeze the
aspirator bulb. If there
are no leaks in the sample draw kit
components, the bulb should stay
deflated for a few seconds.
3. Secure the calibration
adapter (with the
sample draw assembly
attached) to the
MultiVision by inserting
the tab and tightening
the knurled screw at
the top of the adapter.
The correctly
assembled manual
sample draw assembly
is shown at left.
4. Insert the end of the sample probe into
the location to be sampled.
5. Squeeze the aspirator bulb several
times to draw the sample from the
remote location to the sensor
compartment. See section 3.1 for
further information on obtaining
accurate readings with the manual
sample draw kit.
6. Note the gas measurement readings.
CAUTION: Hand aspirated remote
sampling only provides continuous
gas readings for the area in which the
probe is located while the bulb is
being continuously squeezed. Each
time a reading is desired, it is
necessary to squeeze the bulb a
sufficient number of times to bring a
fresh sample to the sensor
compartment.
Manual sample draw kit
A manual sample draw kit is available as
an accessory for the MultiVision. The
manual sample draw kit is comprised of a
sample draw probe, 2 sections of tubing, a
squeeze bulb and an adapter that is used
to connect the sample draw accessories
system to the MultiVision.
To ensure accurate readings while using
the manual sample draw kit, it is
necessary to squeeze the bulb once for
every one foot of sampling hose for the
sample to first reach the sensors, and
then to continue squeezing the bulb once
per second for an additional 45 seconds
or until readings stabilize.
3.1.1 Manual sample draw kit usage
To attach the manual sample draw kit to
the MultiVision:
1. Connect the short section of hose that
comes off of the
squeeze bulb to
the sample draw
adapter. With the
knurled screw at
the front, the hose
should be
attached to the
inlet on the left
side of the
adapter. Then
3.2
Motorized sample draw pump
At the time of purchase, a built-in,
motorized sample-draw pump is available
for the MultiVision for situations requiring
continuous "hands free" remote
monitoring. Use of the motorized sample
draw pump allows the MultiVision to
continuously monitor remote locations.
The pump is powered by the MultiVision
battery. MultiVision instruments
16
configured with a pump will always display
the status of the pump in the current gas
readings screen as either “PUMP” or
“PUMP OFF”.
Once the blockage is removed, the
MultiVision will proceed to the current gas
readings screen.
3.2.1 Starting the motorized sample
pump
The pump adapter
contains a magnet that
activates an electronic
switch that turns on the
pump.
First attach the probe
and tubing to the
calibration adapter as
shown. With the
knurled screw at the front, the hose
should be attached to the inlet on the left
side of the adapter.
Secure the calibration
adapter (with the sample
draw assembly attached)
to the MultiVision by
inserting the tab and
tightening the knurled
screw at the top of the
adapter. The correctly
assembled sample draw
assembly for pumpequipped MultiVision
instruments is shown at
left.
See section 3.2 for further information on
obtaining accurate readings with the
continuous sample pump.
or
To ensure accurate readings while using
the continuous sample pump, it is
necessary to allow the pump to draw the
sample for one second for every one foot
of sampling hose plus an additional 45
seconds or until readings stabilize. For
example, with 10’ of tubing, it will be
necessary to allow a minimum of 55
seconds for the sample to be drawn into
the sensor chamber and for the readings
to stabilize.
MultiVision instruments configured with
the built-in, motorized pump automatically
recognize when the pump adapter is
attached to the instrument. If the pump
adapter is attached when the MultiVision
is turned off, the instrument will
automatically initiate the pump start up
sequence when the instrument is turned
on. If the pump is attached during
instrument operation, the instrument will
automatically initiate the pump test
sequence before returning to the current
gas readings screen.
3.2.2 Turning off the pump
To turn off the pump remove the pump
adapter from the top of the instrument.
The MultiVision will immediately go into
alarm and the following screen will be
shown.
Block the pump inlet by placing a finger
over the end of the sample probe
assembly. Once the MultiVision
recognizes that the sample has been
blocked, it will instruct you to remove the
blockage.
If the pump adapter is removed, the
instrument will return to the current gas
readings screen in diffusion mode.
Pressing MODE at the prompt will cause
the instrument to shut down.
Press the MODE button to return to
diffusion operation. PUMP OFF will then
be shown on the current gas readings
screen.
3.2.2 Low flow alarm
MultiVision instruments configured with a
pump contain a pressure sensor that
detects restrictions in airflow caused by
water or other fluids being drawn into the
17
unit and immediately acts to turn the
pump off in order to protect the sensors,
pump, and other MultiVision components
from damage.
Pump status is continuously monitored by
the MultiVision microprocessor. When the
pump is active and functioning properly,
“PUMP” is displayed near the center of
the LCD display. Low flow or other pump
fault conditions activate audible and
visible alarms and cause the display of the
appropriate explanatory message.
CAUTION: Never perform remote
sampling with the MultiVision without
the sample probe assembly. The
sample probe handle contains
replaceable filters designed to block
moisture and remove particulate
contaminants. If the pump is
operated without the probe assembly
in place, contaminants may cause
damage to the pump, sensors and
internal components of the
MultiVision
The sample draw pump includes a
pressure sensor designed to protect the
MultiVision from exposure to water or
other liquids. If there is a change in
pressure in the sample draw assembly
due to fluid intake or other blockage, the
pump immediately shuts down. After a
few seconds audible and visible alarms
indicating a low flow condition will also be
activated.
CAUTION: Insertion of the sample
draw tube into a fluid horizontally or
at a low angle may lead to water
ingress and may cause damage to
the sensors and internal components
of the MultiVision.
The pressure sensor in the sample draw
pump is designed to detect pressure
changes while the sample-draw probe is
being held in a vertical position. If the
probe is held horizontally or at a low angle
while inserted into a fluid, a pressure drop
sufficient to cause the pump to shut down
may not be generated, and water could be
drawn into the pump assembly causing
damage to the pump, sensors and internal
components of the MultiVision.
To avoid potential damage, care must be
taken to keep the probe vertical whenever
fluids may be present.
If the MultiVision determines that a
significant pressure change has occurred,
it will go into alarm and the following
screen will be shown:
Remove the blockage and press the
MODE button to acknowledge the alarm
and resume sampling.
3.3
Sample draw probe
The MultiVision’s sample draw probe is
the standard probe assembly from
Sperian Instrumentation. The illustration
in chapter 5 gives a breakdown of all parts
in the sample draw probe with part
numbers.
The sample probe handle contains
moisture barrier and particulate filters
designed to remove contaminants that
might otherwise harm the instrument.
CAUTION: Never perform remote
sampling without the sample probe
and hose assembly. The sample
probe handle contains replaceable
filters designed to block moisture
and remove particulate
contaminants. If the pump is
operated without the probe assembly
in place, contaminants may cause
damage to the pump, sensors and
internal components of the
MultiVision.
Particulate contaminants are removed by
means of a cellulose filter. The
hydrophobic filter includes a Teflon™
barrier which blocks the flow of moisture
as well as any remaining particulate
contaminants.
Sample probe filters should be replaced
whenever visibly discolored due to
contamination. See section 5.7.1 for a list
of available sample probe filter
replacement kits.
4.
Calibration
The accuracy of the MultiVision should be
verified on a regular basis. Verification
can be as simple as performing a bump
test, which is described below in section
4.1.
18
If exposure to fresh air yields an oxygen
reading of less than 20.7% or greater than
21.1% or a toxic or LEL sensor reading of
anything other than 0, then a Fresh
Air/Zero Calibration should be performed
as described in section 4.2.
If exposure to a known concentration
calibration gas (as described in section
4.1) shows that LEL or toxic sensor
readings are not between 90% and 120%
of the value given on the calibration gas
cylinder, then the Span Calibration should
be performed as described in section 4.3.
See Appendix B for Sperian
Instrumentation’s’ official
recommendations concerning
calibration frequency.
4.1
Functional (Bump) testing
The accuracy of the MultiVision may be
verified at any time by a simple functional
(bump) test.
To perform a functional (bump) test, do
the following:
1. Turn the MultiVision on and wait at
least three minutes to allow the
readings to fully stabilize. If any of the
sensors have just been replaced, the
new sensor(s) must be allowed to
stabilize prior to use. See section 5.6
for further details on sensor
stabilization requirements.
2. Make sure the instrument is located in
fresh air.
3. Verify that the current gas readings
match the concentrations present in
fresh air. The oxygen (O2) sensor
should read 20.9% (+/-0.2%/vol.). The
readings for the LEL sensor should be
0% LEL and toxic sensors should read
0 parts-per-million (PPM) in fresh air.
If the readings deviate from the
expected levels in a fresh air
environment, proceed to section 4.2
and perform the fresh air calibration
adjustment then proceed to step 4
below.
4. Attach the calibration adapter and
connect the calibration cylinder to the
MultiVision as shown in figure 4.1.
Flow gas to the sensors.
5. Wait for the readings to stabilize.
(Forty-five seconds to one minute is
usually sufficient.)
Figure 4.1 Bump Test and Span
Calibration set up
6. Note the readings. Toxic and LEL
sensor readings are considered
accurate in a bump test if they are
between 90% and 120% of the
expected reading as given on the
calibration cylinder. If the readings are
considered accurate, then the
instrument may be used without
further adjustment. If toxic and LEL
the readings do not fall within 90% and
120% of the expected reading as
given on the calibration cylinder, then
readings are considered inaccurate. If
readings are considered inaccurate,
proceed to section 4.3 and perform the
span calibration.
Sperian’s multi-calibration gas
mixtures contain approximately 18%
oxygen. During the bump test the
oxygen sensor should read within +/0.5% of the level given on the
calibration cylinder.
4.2
Fresh Air/Zero Calibration
Fresh air/zero
calibrations may only be performed in
an atmosphere that is known to
contain 20.9% oxygen, 0.0% LEL and 0
PPM toxic gas.
Note: For instructions on performing
the fresh air/zero calibration in a
contaminated atmosphere, proceed to
section 4.4.
To initiate the fresh air/zero calibration:
19
1. Press the MODE button three times
within two seconds to begin the fresh
air/zero calibration sequence. The
MultiVision will briefly display 0-CAL
and then begin a 5-second
countdown.
If a successful fresh air / zero calibration
is not performed prior to instrument shut
down, the O2 sensor will be identified as
needing calibration during instrument start
up.
Possible causes and solutions
1. The atmosphere in which the
instrument is located is contaminated
(or was contaminated at the time the
instrument was last fresh air
calibrated.
2. A new sensor has just been installed.
3. Instrument has been dropped or
banged since last turned on.
4. There has been a significant change in
temperature since the instrument was
last used.
Recommended action:
Take the instrument to fresh air and allow
readings to stabilize. Perform the fresh
air/zero adjustment again. If the manual
fresh air/zero procedure fails to correct the
problem, perform the manual fresh air /
zero calibration procedure as described in
section 4.2.2 below.
2. Press the MODE button before the
end of the 5-second countdown to
begin the fresh air/zero calibration.
The fresh air/zero calibration is
initiated when the MultiVision
alternates between the following two
screens:
↔
3. The fresh air/zero calibration is
complete when the instrument begins
another 5-second countdown for the
span calibration. If span calibration is
not required, allow the countdown to
reach 0 without pressing the MODE
button.
4.2.2 Manual fresh air / zero
calibration
The MultiVision includes safeguards to
prevent fresh air calibration in
contaminated environments. If the
standard fresh air / zero calibration fails a
second time, the instrument may be
“forced” to accept the fresh air calibration
by performing the manual fresh air / zero
calibration.
Fresh air/zero
calibrations may only be performed in
an atmosphere that is known to
contain 20.9% oxygen, 0.0% LEL and 0
PPM toxic gas.
1. Initiate the standard fresh air / zero
calibration sequence by pressing the
MODE button three times in rapid
succession.
4.2.1 Fresh air calibration failure
In the event of a fresh air calibration
failure, the alarms will be activated and
the instrument will display the following
screen three times intermittently with the
current gas readings screen.
After the third display of the 0-CAL Error
screen, the instrument will return to the
current gas readings screen and the
visual and audible alarms will cease. The
warning symbol and smaller 0-CAL
message will be shown intermittently in
the current gas readings screen until a
successful fresh air calibration is
performed.
2. Press the MODE button before the
end of the 5-second countdown and
continue to hold the MODE button.
As in the standard fresh air /zero
20
calibration, the MultiVision will
alternate between the following two
screens:
tested for response to diminished oxygen
levels during span calibration. Sperian
calibration gas cylinders contain
approximately 18.0% oxygen. In order to
pass the span calibration, the MultiVision
must register an oxygen reading below
19.5% during span calibration.
See section 4.3.2 below if the oxygen
sensor does not detect the drop in oxygen
level and fails the span calibration.
↔
3. The fresh air/zero calibration is
complete when the instrument begins
another 5-second countdown for the
span calibration. If span calibration is
not required, allow the countdown to
reach 0 without pressing the MODE
button.
If the MultiVision still fails to calibrate after
attempting the manual fresh air / zero
calibration, call Sperian Instrumentation.
Sperian Instrumentation’s telephone
number is shown on the front of this
manual.
4.3
↔
The calibration is fully automatic from this
point on. Upon successful calibration of a
sensor, the MultiVision will beep, show the
adjusted reading for the calibrated
sensors and then move on to the next
sensor.
Span Calibration
Once the fresh air / zero calibration has
been successfully completed, the
MultiVision will automatically proceed to
the automatic span calibration countdown
screen. The instrument is ready for span
calibration when the following screen is
shown.
Once the calibration of all sensors is
successfully completed, the MultiVision
will briefly show the lowest oxygen
reading obtained during the span
calibration along with the maximum
adjustment values for the LEL and toxic
sensors.
Press the MODE button before the
countdown is complete to initiate the span
calibration. The screen will immediately
show “APPLY GAS” and then list the
sensors for calibration.
Note: Sperian Instrumentation
recommends the use of multicomponent calibration gas for
calibrating the MultiVision.
The maximum adjustment values for the
LEL and toxic sensors give an indication
of the remaining sensitivity of the sensors.
As sensitivity decreases, the maximum
possible adjustment will decrease to
approach the expected concentration of
the calibration gas.
Note: Once the calibration cycle is
successfully completed, the
MultiVision will automatically turn itself
off. Disconnect the calibration
assembly prior to turning the
instrument back on.
↔
Apply calibration gas as shown above in
figure 4.1. The readout will change to a
numerical display almost immediately and
will alternate with the sensor screen.
The actual calibration of the oxygen
sensor to 20.9% occurs during the fresh
air calibration, but the oxygen sensor is
4.3.1
Span calibration failure: toxic
and LEL sensors
When span calibration is due, the
MultiVision’s display will intermittently
21
show the warning symbol with the
calibration bottle in the current gas
readings screen.
calibration gas cylinder allows the oxygen
sensor’s response to be tested in the
same manner as the toxic and LEL
sensors.
If the O2 sensor fails to register a reading
below 19.5% during the span calibration,
the following two screens will be shown
immediately following the calibration
attempt.
The MultiVision will also display a “Needs
Cal” message for any sensors that are
currently due for calibration during
instrument start-up.
Possible causes and remedies:
1. Empty calibration gas cylinder. Verify
that there is calibration gas in the
cylinder.
2. Expired calibration gas cylinder.
Verify that the expiration date on the
cylinder has not passed.
3. Calibration gas setting does not
correspond to calibration gas
concentration. The default calibration
gas settings are 50% LEL, 50PPM CO
and 25PPM H2S. If the values on the
calibration cylinder are different from
these values, the MultiVision’s
calibration gas settings must be
changed to match the new values.
Changing the calibration gas settings
requires the use of the MultiVision
programming software, which is
available separately.
4. LEL only: Type of calibration gas
(standard) has changed significantly.
LEL calibration gas may be based on
several different response standards.
Methane, propane and pentane are
the most common. If using a new
cylinder of calibration gas, make sure
that the type and amount of
combustible gas is identical to that of
the previous bottle. Sperian offers
calibration gases in Methane, Propane
Equivalent and Pentane Equivalent.
5. Dead sensor. Replace sensor.
6. Instrument problem. Return the
instrument to Sperian Instrumentation.
Call the phone number on the front of
this manual.
↔
Press MODE to acknowledge the warning
and turn the instrument off.
If the oxygen sensor fails to register the
drop in oxygen during the span calibration
while being challenged with calibration
gas containing less than 19.0% oxygen, it
should be considered out of tolerance and
retired from service immediately.
A sensor that cannot
be calibrated or is found to be out of
tolerance should be replaced
immediately. An instrument that fails
calibration may not be used until
testing with known concentration test
gas determines that accuracy has been
restored, and the instrument is once
again fit for use.
Possible causes and remedies:
1. Calibration gas cylinder does not
contain a reduced level of oxygen.
Verify that the cylinder contains less
than 19.0% oxygen.
To challenge the oxygen sensor
without calibration gas, hold you
breath of about 10 seconds (or more),
and then slowly exhale directly onto
the face of the sensor (in the same
way you would attempt to fog up a
piece of glass). If the descending
oxygen alarm is set to 19.5%, the
instrument should go into alarm after a
few seconds.
Note: See the diagram in section 5.6
for the location of the oxygen sensor.
2. Oxygen sensor has just been replaced
and has not had time to stabilize.
4.3.2
Span calibration failure: oxygen
sensors
Sperian multi calibration gas cylinders
contains approximately 18.0% oxygen.
The reduced oxygen level in the
3. Oxygen sensor failure.
22
4.4
How to calibrate the
MultiVision in contaminated air
5.3
The MultiVision is powered by
interchangeable alkaline and NiMH
rechargeable
battery packs.
To remove the
battery pack
from the
MultiVision,
loosen the two
knurled screws
at the bottom of
the instrument and slide the battery pack
out of the instrument.
CAUTION Always turn the MultiVision
off prior to removing the battery pack.
Removal of the battery pack with the
instrument turned on may cause
corruption of stored data in the
MultiVision.
Note: To ensure maximum water
resistance, tighten both battery pack
thumbscrews to finger tight and then
an additional 1 turn. Over tightening
may result in damage to the
instrument.
Calibration of the MultiVision is a two-step
process. The first step is to expose the
sensors to contaminate-free air with an
oxygen concentration of 20.9% and 0
PPM toxic gases and perform a fresh air
calibration.
Unfortunately, there are some locations
that are never completely free of
contaminants. An example would be a
furnace intensive area that always has a
background concentration of a few PPM
CO. To fresh air / zero calibrate in a
contaminated atmosphere, it is necessary
to use special calibration cylinder
containing "Zero Air". This gas cylinder,
Sperian part number 54-9039, is used in
conjunction with the sample draw
calibration adapter.
Connect the “Zero Air” cylinder to the
MultiVision using a length of tubing and
the calibration adapter and flow the “Zero
Air” gas across the sensors for a minute,
just as if you were doing a span
calibration. Then initiate the fresh air/zero
calibration and proceed as described in
4.2 above. Once the fresh air/zero
calibration has been completed using the
“Zero Air” cylinder, disconnect the cylinder
from the MultiVision and proceed to the
span calibration with a second cylinder of
calibration gas (if required).
5.
5.4
Basic Maintenance
Cleaning
The exterior surfaces of the MultiVision
may be cleaned using a damp cloth only.
Do not use cleaning agents of any kind.
The introduction of cleaning agents to the
detector may affect instrument
functionality.
5.2
Replacing alkaline batteries
The alkaline battery pack contains three
AA alkaline batteries.
The MultiVision must
be located in a non-hazardous
location whenever alkaline batteries
are removed from the alkaline battery
pack. Removal of the alkaline
batteries from the battery pack in a
hazardous area may impair intrinsic
safety.
Use only Duracell
MN1500 or Ultra MX1500, Eveready
Energizer E91-LR6, Eveready EN91,
Radio Shack 23-874* size AA 1.5V
Alkaline batteries, Eveready CH15* or
Radio Shack 23-149* size AA NiCad
batteries, or Eveready L91*† AA 1.5V
Lithium batteries. Substitution of
batteries may impair intrinsic safety.
To prevent ignition of
flammable or combustible
atmospheres, disconnect power before
servicing any parts in the MultiVision.
5.1
Batteries
Storage
*Not for use with ATEX certified instruments. (ATEX is a
MultiVision detectors may be stored for
long periods in a fresh air environment at
temperatures between 10°C/50°F and
30°C/86°F.
See section 5.5.1 for specific instructions
concerning the storage of rechargeable /
NiMH versions of the MultiPro.
European safety directive).
†Not CSA approved (CSA is the Canadian Standards
Association (similar to UL in the United States)).
To replace the alkaline batteries:
23
1. Remove the
battery pack from
the MultiVision as
discussed in
above in section
5.3.
2. Loosen the single
screw at the end
of the battery
pack and remove
the battery cover
plate.
3. Remove the three alkaline batteries
and replace them. Be sure to align the
positive and
negative ends
in accordance
with the
diagram under
each battery.
4. Reinstall the
battery cover
plate that was
removed in
step 2.
5. Return the battery pack to the
MultiVision and re-tighten the two
knurled screws. The MultiVision will
automatically turn itself on upon
battery insertion.
5.5.2 Charging guidelines for NiMH
battery
The NiMH battery in the MultiVision
should never be charged at temperatures
lower than 5 degrees Celsius (40 degrees
Fahrenheit) or higher than 30 degrees
Celsius (86 degrees Fahrenheit.
Charging at temperature extremes can
permanently damage the MultiVision
NiMH battery.
The MultiVision must
be located in a non-hazardous
location during the charging cycle.
Charging the MultiVision in a
hazardous location may impair
intrinsic safety.
5.5.3 Charging
procedure for NiMH
battery
1. Verify that the
instrument is turned off.
(If it is not, press the
MODE button for three
seconds until the message "Release
Button" appears.)
2. Plug the power supply
in. The LED on the charger
will show 2 or 3 long blinks
during the diagnostic check
and then show a short blink
every five seconds to show
that it is plugged in and
operational.
3. Insert the MultiVision
into the charging cradle. The LED on
the charger will blink approximately
once per second during the charging
cycle.
The battery may also be charged
outside of the instrument. First
remove the battery as discussed in
section 5.3. Then insert the battery
alone into the charger as shown.
4. Charging is complete when the LED
on the charger stops blinking.
CAUTION To achieve optimal charge
and ensure long battery life of the
NIMH battery, make sure that
charging takes place in an area
where the ambient air temperature is
between 40 and 86 degrees
Fahrenheit (5 and 30 degrees
Celsius). Charging the battery in
5.5
Maintaining NiMH battery
packs
The MultiVision may be equipped with a
rechargeable NiMH (nickel metal hydride)
battery pack.
5.5.1 Storage guidelines for the NiMH
battery
Never store NiMH-version MultiVision
instruments at temperatures above 30
degrees Celsius (86 degrees Fahrenheit).
Nickel Metal Hydride batteries may suffer
deterioration resulting in damage to the
internal components when stored at high
temperatures. The battery may be
irretrievably damaged resulting in reduced
battery capacity and voltage.
Sperian Instrumentation recommends
leaving MultiVision instruments with NiMH
rechargeable batteries on the charger
when not in use.
24
both the Fresh Air/Zero calibration and
the Span calibration as discussed in
sections 4.2 and 4.3.
Note: Sensor channels in the
MultiVision are specific to the type of
sensor that occupies the channel. Be
careful not to exchange the positions
of the CO and H2S sensors. Follow the
diagram above when replacing the
sensors.
temperatures above or below this
range can damage the battery and
will drastically affect battery life.
5.6
Sensor installation
The sensors in the MultiVision are housed
at the top of the instrument.
To install a sensor:
1. Remove the sensor cover
plate by removing the
four screws at the top of
the instrument.
2. The sensors are located
under the sensor cover
plate. Sensor channels
in the MultiVision are
specific to the type of
sensor that occupies the
channel. From left to
right while looking at the front of the
display, the sensors are as follows:
Combustible (LEL),
CO, H2S, O2. See
illustration.
3. Gently remove the
sensor that is to be
replaced.
4. Insert the new
sensor into the
appropriate location on
the sensor interface
board. See diagram at
left.
5.
New sensors
must be allowed to stabilize prior to use
according to the following schedule. The
detector must be powered off and a
functional battery pack must be installed
for the sensor to stabilize.
Sensor
Stabilization Period
Oxygen (O2)
1 hour
LEL
none
CO
15 minutes
H2S
15 minutes
6. Reinstall the sensor cover plate and
tighten down the four screws.
7. If an oxygen sensor was replaced,
perform the Fresh Air/Zero calibration
as discussed in section 4.2.
8. If a combustible (LEL) or a toxic
sensor has been replaced, wait
approximately 3 minutes for the
sensors to warm up and for the
readings to stabilize. Then perform
5.7
Sample probe assembly
The MultiVision’s sample draw probe is
the standard probe assembly from
Sperian Instrumentation. The illustration
below gives a breakdown of all parts in
the sample draw probe with part numbers.
The sample probe handle contains
moisture barrier and particulate filters
designed to remove contaminants that
might otherwise harm the instrument.
CAUTION: Never perform remote
sampling without the sample probe
and hose assembly. The sample
probe handle contains replaceable
filters designed to block moisture
and remove particulate
contaminants. If the pump is
operated without the probe assembly
in place, contaminants may cause
damage to the pump, sensors and
25
internal components of the
MultiVision.
Particulate contaminants are removed by
means of a cellulose filter. The
hydrophobic filter includes a Teflon™
barrier which blocks the flow of moisture
as well as any remaining particulate
contaminants.
Sample probe filters should be replaced
whenever visibly discolored due to
contamination.
5.7.1
Part No.
Kit
54-05-K0401
54-05-K0402
54-05-K0403
54-05-K0404
54-05-K0405
Standard
Economy
Economy
Bulk
Bulk
#Particulate
10
10
30
0
100
#Hydrophobic
3
0
10
25
0
5.7.2 Changing sample probe tubes
(wands)
The standard 11.5” long butyrate probe
tube is held in place by means of a hexnut compression fitting and compression
sleeve. The standard probe tube is
designed to be easily interchangeable
with other custom length sections of 1/4”
OD tubing, or probe tubes made of other
materials (such as stainless steel).
Probe tubes are exchanged by loosening
the hex-nut compression fitting, removing
the old tube, sliding the compression
sleeve into place around the new tube,
inserting the new tube into the probe
handle, then replacing and tightening the
hex-nut.
Note: The sample probe must be
checked for leakage (as discussed in
Section 3.1.1) whenever filters or
probe tubes are exchanged or
replaced before being returned to
service.
Changing sample probe filters
The threaded sample probe handle is to
provide access to the filters. The
particulate filter is held in place by means
of a clear filter cup. To replace the
particulate filter, remove the old filter and
cup, insert a new filter into the cup, and
slide the cup back into place in the probe
handle. The hydrophobic barrier filter fits
into a socket in the rear section of the
probe handle. (The narrow end of the
hydrophobic barrier filter is inserted
towards the rear of the handle.)
To avoid accidentally introducing
particulate contaminants into the system,
turn the sample probe upside-down prior
to removing either the hydrophobic filter or
the particulate filter.
The following replacement filter kits are
currently available from Sperian
Instrumentation:
26
5.8
Exploded view and replacement parts list
27
independent exposure measurements and alarm
types built into the MultiPro design.
Appendices
Appendix A Toxic gas
measurement – Warning, Danger,
STEL and TWA alarms
1. Warning and Danger Alarms:
OSHA has assigned some, but not all, toxic
substances with a ceiling level which represents
the highest concentration of a toxic substance to
which an unprotected worker should ever be
exposed, even for a very short time. The default
Warning and Danger alarm levels in the MultiPro
are less than or equal to the OSHA-assigned
ceiling levels for both CO and H2S. Never enter
an environment even momentarily when
concentrations of toxic substances exceed the
level of either the Warning or the Danger Alarm.
Many toxic substances are commonly encountered
in industry. The presence of toxic substances may
be due to materials being stored or used, the work
being performed, or may be generated by natural
processes. Exposure to toxic substances can
produce disease, bodily injury, or death in
unprotected workers.
It is important to determine the amounts of any toxic
materials potentially present in the workplace. The
amounts of toxic materials potentially present will
affect the procedures and personal protective
equipment that must be used. The safest course of
action is to eliminate or permanently control
hazards through engineering, workplace controls,
ventilation, or other safety procedures.
Unprotected workers may not be exposed to levels
of toxic contaminants that exceed Permissible
Exposure Limit (PEL) concentrations. Ongoing
monitoring is necessary to insure that exposure
levels have not changed in a way that requires the
use of different or more rigorous procedures or
equipment.
Airborne toxic substances are typically classified on
the basis of their ability to produce physiological
effects on exposed workers. Toxic substances tend
to produce symptoms in two time frames.
Higher levels of exposure tend to produce
immediate (acute) effects, while lower levels of
long-term (chronic) exposure may not produce
physiological symptoms for years.
Hydrogen sulfide (H2S) is a good example of an
acutely toxic substance which is immediately lethal
at relatively low concentrations. Exposure to a
1,000 ppm (parts per million) concentration of H2S
in air produces rapid paralysis of the respiratory
system, cardiac arrest, and death within minutes.
Carbon monoxide (CO) is a good example of a
chronically toxic gas. Carbon monoxide bonds to
the hemoglobin molecules in red blood cells. Red
blood cells contaminated with CO are unable to
transport oxygen. Although very high
concentrations of carbon monoxide may be acutely
toxic, and lead to immediate respiratory arrest or
death, it is the long term physiological effects due to
chronic exposure at lower levels that take the
greatest toll of affected workers. This is the
situation with regards to smokers, parking garage
attendants, or others chronically exposed to carbon
monoxide in the workplace. Exposure levels are
too low to produce immediate symptoms, but small
repeated doses reduce the oxygen carrying
capacity of the blood over time to dangerously low
levels. This partial impairment of the blood supply
may lead over time to serious physiological
consequences.
Because prudent monitoring programs must take
both time frames into account, there are two
Time History Graph
Ceiling
2. Time Weighted Average (TWA):
The maximum average concentration to which an
unprotected worker may be exposed over an eight
hour working day is called the Time Weighted
Average or TWA value. TWA values are calculated
by taking the sum of exposure to a particular toxic
gas in the current operating session in terms of
parts-per-million-hours and dividing by an eighthour period.
Time History Graph
Ceiling
TWA
(8 hour)
3. Short Term Exposure Limits
(STEL):
Toxic substances may have short term exposure
limits which are higher than the eight hour TWA.
The STEL is the maximum average concentration
to which an unprotected worker may be exposed
in any fifteen minute interval during the day.
During this time, neither the eight hour TWA or the
ceiling concentration may be exceeded.
Any fifteen minute periods in which the average
STEL concentration exceeds the permissible eight
hour TWA must be separated from each other by
at least one hour. A maximum of four of these
periods are allowed per eight hour shift.
Time History Graph
Ceiling
STEL
TWA
15 Minutes
28
Appendix B Calibration
Frequency
Recommendation
One of the most common
questions that we are asked at
Sperian Instrumentation is: “How
often should I calibrate my gas
detector?”
Sensor Reliability and Accuracy
Today’s sensors are designed to
provide years of reliable service.
In fact, many sensors are designed
so that with normal use they will
only lose 5% of their sensitivity per
year or 10% over a two-year
period. Given this, it should be
possible to use a sensor for up to
two full years without any
significant loss of sensitivity.
Verification of Accuracy
With so many reasons why a
sensor can lose sensitivity and
given the fact that dependable
sensors can be key to survival in a
hazardous environment, frequent
verification of sensor performance
is paramount.
There is only one sure way to
verify that a sensor can respond to
the gas for which it is designed.
That is to expose it to a known
concentration of target gas and
compare the reading with the
concentration of the gas. This is
referred to as a “bump” test. This
test is very simple and takes only a
few seconds to accomplish. The
safest course of action is to do a
“bump” test prior to each day’s
use*. It is not necessary to make a
calibration adjustment if the
readings fall between 90%** and
120% of the expected value. As an
example, if a CO sensor is
checked using a gas concentration
of 50 PPM it is not necessary to
perform a calibration unless the
readings are either below 45 PPM
or above 60 PPM.
* The Canadian Standards
Association (CSA) requires the
LEL sensor to be bump tested
prior to each day’s use with
calibration gas containing
between 25% and 50% LEL.
** The Canadian Standards
Association (CSA) requires the
instrument to undergo
calibration when the displayed
value during a bump test fails to
fall between 100% and 120% of
the expected value for the gas.
Lengthening the Intervals
between Verification of
Accuracy
We are often asked whether there
are any circumstances in which the
period between accuracy checks
may be lengthened.
Sperian Instrumentation is not the
only manufacturer to be asked this
question! One of the professional
organizations to which Sperian
Instrumentation belongs is the
Industrial Safety Equipment
Association (ISEA). The
“Instrument Products” group of this
organization has been very active
in developing a protocol to clarify
the minimum conditions under
which the interval between
accuracy checks may be
lengthened.
A number of leading gas detection
equipment manufacturers have
participated in the development of
the ISEA guidelines concerning
calibration frequency. Sperian
Instrumentation procedures closely
follow these guidelines.
If your operating procedures do not
permit daily checking of the
sensors, Sperian Instrumentation
recommends the following
procedure to establish a safe and
prudent accuracy check schedule
for your Sperian instruments:
1. During a period of initial use of
at least 10 days in the
intended atmosphere, check
the sensor response daily to
be sure there is nothing in the
atmosphere that is poisoning
the sensor(s). The period of
initial use must be of sufficient
duration to ensure that the
sensors are exposed to all
conditions that might have an
adverse effect on the sensors.
2. If these tests demonstrate that
it is not necessary to make
adjustments, the time between
checks may be lengthened.
The interval between accuracy
checking should not exceed
30 days.
3. When the interval has been
extended the toxic and
combustible gas sensors
should be replaced
immediately upon warranty
expiration. This will minimize
the risk of failure during the
interval between sensor
checks.
4. The history of the instrument
response between
verifications should be kept.
Any conditions, incidents,
experiences, or exposure to
contaminants that might have
29
an adverse effect on the
calibration state of the sensors
should trigger immediate reverification of accuracy before
further use.
5. Any changes in the
environment in which the
instrument is being used, or
changes in the work that is
being performed, should
trigger a resumption of daily
checking.
6. If there is any doubt at any
time as to the accuracy of the
sensors, verify the accuracy of
the sensors by exposing them
to known concentration test
gas before further use.
Gas detectors used for the
detection of oxygen deficiencies,
flammable gases and vapors, or
toxic contaminants must be
maintained and operated properly
to do the job they were designed to
do. Always follow the guidelines
provided by the manufacturer for
any gas detection equipment you
use!
If there is any doubt regarding your
gas detector's accuracy, do an
accuracy check! All it takes is a
few moments to verify whether or
not your instruments are safe to
use.
One Button Auto Calibration
While it is only necessary to do a
“bump” test to ensure that the
sensors are working properly, all
current Sperian Instrumentation
gas detectors offer a one button
auto calibration feature. This
feature allows you to calibrate a
Sperian Instrumentation gas
detector in about the same time as
it takes to complete a “bump” test.
The use of automatic bump test
and calibration stations can further
simplify the tasks, while
automatically maintaining records.
Don't take a chance
with your life.
Verify accuracy frequently!
Please read also Sperian
Instrumentation’s’ application
note: AN20010808 “Use of
‘equivalent’ calibration gas
mixtures”. This application note
provides procedures to ensure
safe calibration of LEL sensors
that are subject to silicone
poisoning.
Sperian Instrumentation’s website
is at:
http://www.biosystems.com
Appendix C MultiVision Sensor Information
Part No. Description
Range
Resolution
54-42-80 LEL Combustible gas (UL-Approved Units)
54-42-81 LEL Combustible gas (ATEX-Approved Units)
0 – 100% LEL
0 – 100% LEL
0 – 30% by
Volume
0 – 1000 PPM
0 – 200 PPM
1% LEL
1% LEL
0.1%
54-42-90 O2 Oxygen
54-42-01 CO Carbon monoxide
54-42-02 H2S Hydrogen sulfide
1 PPM
1 PPM
Appendix D Toxic Sensor Cross-Sensitivity
The table below provides the cross-sensitivity response of the MultiVision toxic gas sensors to common
interference gases. The values are expressed as a percentage of the primary sensitivity, or the reading of the
sensor when exposed to 100ppm of the interfering gas at 20ºC. These values are approximate. The actual
values depend on the age and condition of the sensor. Sensors should always be calibrated to the primary
gas type. Cross-sensitive gases should not be used as sensor calibration surrogates without the express
written consent of Sperian Instrumentation.
SENSOR
CO
H2S
SO2
NO
NO2
Cl2
ClO2
H2
HCN
HCl
NH3
C2H4
C2H2
Carbon
Monoxide
(CO)
Hydrogen
Sulfide
(H2S)
100
10
5
10
-15
-5
-15
50
15
3
0
75
250
0.5
100
20
2
-20
-20
-60
0.2
0
0
0
n/d
n/d
Appendix E Basic parts list
Calibration accessories
54-41-001
54-41-005
54-41-003
54-41-006
54-41-007
54-05-A0403
54-05-A0405
MultiVision Calibration Adapter
MultiVision Remote Sampling Adapter (Manual sample draw)
MultiVision Remote Sampling Adapter (Internal pump). Includes pump activation magnet.
Requires internal pump be installed in MultiVision
MultiVision Internal Pump Upgrade. Must be returned to Sperian Instrumentation’s service
department.
This part number includes labor charges for upgrade.
MultiVision Manual Sample draw kit. Includes adapter, squeeze bulb, 10’ of tubing.
Sample probe assembly. Does not include tubing, squeeze bulb, or sample draw adapter
Sample probe assembly with 11.5-inch stainless-steel probe tube. Does not include tubing,
squeeze bulb, or sample draw / calibration adapter
Sensors
54-42-80
54-42-81
54-42-90
54-42-01
54-42-02
54-42-101
LEL
Combustible gas (UL-Approved Units)
LEL
Combustible gas (ATEX-Approved Units)
O2
Oxygen
CO
Carbon monoxide
H2S
Hydrogen sulfide
MultiVision Exchange set of 4 sensors. O2, LEL, CO and
H2S. This part number requires return of identical set of
expired MultiVision sensors.
Miscellaneous
Part No.
54-41-004B
54-41-004R
54-41-004Y
54-41-008
54-26-0605S
54-26-0605U
Description
MultiVision Rubber Boot. Black
MultiVision Rubber Boot. Red
MultiVision Rubber Boot. Yellow
MultiVision BioTrak Download software.
Requires MultiVision datalogging option be installed. Computer must support IrDA to download.
Infrared communication device (Serial – IrDA) - Requires one available PC serial port.
Infrared communication device (USB – IrDA) - Requires one available USB port.
30
Appendix F Sperian Instrumentation Standard Gas Detection Warranty
General
Sperian Protection Instrumentation, LLC (hereafter Sperian) warrants gas detectors, sensors and
accessories manufactured and sold by Sperian, to be free from defects in materials and workmanship for
the periods listed in the tables below.
Damages to any Sperian products that result from abuse, alteration, power fluctuations including surges
and lightning strikes, incorrect voltage settings, incorrect batteries, or repair procedures not made in
accordance with the Instrument’s Reference Manual are not covered by the Sperian warranty.
The obligation of Sperian under this warranty is limited to the repair or replacement of components
deemed by the Sperian Instrument Service Department to have been defective under the scope of this
standard warranty. To receive consideration for warranty repair or replacement procedures, products
must be returned with transportation and shipping charges prepaid to Sperian at its manufacturing
location in Middletown, Connecticut, or to a Sperian Authorized Warranty Service Center. It is necessary
to obtain a return authorization number from Sperian prior to shipment.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND
REPRESENTATIONS, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, THE
WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. SPERIAN WILL NOT BE LIABLE FOR
LOSS OR DAMAGE OF ANY KIND CONNECTED TO THE USE OF ITS PRODUCTS OR FAILURE OF
ITS PRODUCTS TO FUNCTION OR OPERATE PROPERLY.
Instrument & Accessory Warranty Periods
Product(s)
Biosystems PHD6, PhD5, PhD Lite, PhD Plus, PhD
Ultra, Cannonball3, MultiVision, Toxi, Toxi/Oxy Plus,
Toxi/Oxy Ultra, ToxiVision, Ex Chek
ToxiPro®, MultiPro
ToxiLtd®
Toxi3Ltd®
Mighty-Tox 2
Prorated credit is given towards repair or purchase of a
new unit of the same type.
IQ Systems, Series 3000, Airpanel, Travelpanel,
ZoneGuard, Gas9Chek1 and Gas9Chek4
Battery packs and chargers, sampling pumps and
other components, which by their design are
consumed or depleted during normal operation, or
which may require periodic replacement
Warranty Period
As long as the instrument is in service
2 years from date of purchase
2 years after activation or 2 years after the
“Must Be Activated By” date, whichever
comes first
3 years after activation or 3 years after the
“Must Be Activated By” date, whichever
comes first
0 – 6 months of use 100% credit
6 – 12 months of use 75% credit
12 – 18 months of use 50% credit
18 – 24 months of use 25% credit
One year from the date of purchase
One year from the date of purchase
Sensor Warranty Periods
Instrument(s)
Biosystems PHD6, PhD Plus, PhD Ultra, PhD5,
PhD Lite, Cannonball3, MultiVision, MultiPro,
ToxiVision, ToxiPro®, Ex Chek
Toxi, Toxi/Oxy Plus, Toxi/Oxy Ultra
All Others
Sensor Type(s)
O2, LEL**, CO, CO+, H2S &
Duo-Tox
All Other Sensors
CO, CO+, H2S
All Other Sensors
All Sensors
Warranty Period
2 Years
1 Year
2 Years
1 Year
1 Year
** Damage to combustible gas sensors by acute or chronic exposure to known sensor poisons such
as volatile lead (aviation gasoline additive), hydride gases such as phosphine, and volatile silicone
gases emitted from silicone caulks/sealants, silicone rubber molded products, laboratory glassware
greases, spray lubricants, heat transfer fluids, waxes & polishing compounds (neat or spray aerosols),
mold release agents for plastics injection molding operations, waterproofing formulations, vinyl &
leather preservatives, and hand lotions which may contain ingredients listed as cyclomethicone,
dimethicone and polymethicone (at the discretion of Sperian’s Instrument Service department) void
Sperian Instrumentation’s Standard Warranty as it applies to the replacement of combustible gas
sensors.
31
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