sensit® gold g2 - Sensit Technologies

sensit® gold g2 - Sensit Technologies
INSTRUCTION MANUAL
SENSIT® GOLD G2
Gas Detection Instrument
For use with combustible gases and optionally available
oxygen and toxic gases.
Read and understand
instructions before use.
II 2 G
0891
Ex ib IIB T3
AEx ia IIB T3
IP54
ATEX Cert. No. TRAC11ATEX21304X
Listed UL 913
Intrinsically Safe for Use in
Class I, Groups C and D, T3
Hazardous Locations
⚠ Warning:
To prevent ignition of flammable or combustible
atmospheres, disconnect power before servicing.
851 Transport Drive • Valparaiso, IN 46383 (USA)
Phone: 219.465.2700 • www.gasleaksensors.com
FOR YOUR SAFETY
NOTICE: ⚠ CAUTION: This safety symbol is used to
indicate a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
⚠
NOTICE: LEL sensor should be checked for accuracy after
exposure to any gases containing silicones, high sulfur content, high
concentrations of CO (above 1000ppm) or exhaust gases.
Continuously low calibration check results or fluctuation of zero readings
may indicate sensor end of life or failure. Consult SENSIT Technologies
with any questions.
For best accuracy always zero in clean air environments similar in
temperature and relative humidity to the environment where the
instrument will be used.
When continuously exposed to combustible gas concentrations beyond
LEL for longer than 5 minutes always perform a calibration check prior
to the next use.
ii
FOR YOUR SAFETY
NOTICE: ⚠ CAUTION: This safety symbol is used to
indicate a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
⚠ Warning: To reduce the risk of ignition of a flammable atmosphere,
batteries must only be changed in an area known to be nonflammable.
⚠ Warning: Use only DURACELL® PROCELL, Type PC1400
Alkaline Batteries
⚠ Warning: Do not mix batteries of different age or type.
⚠ Warning: Not for use in atmospheres of oxygen greater than 21%.
⚠ Warning: ONLY zero instrument in a gas free environment.
⚠ Warning: To maintain intrinsic safety, service must be performed by
factory authorized technicians with approved replacement parts only. No
substitution of components is permitted.
⚠ Warning: All Accessories are to be used in an area known to be
non-flammable.
iii
CONTENTS
Preparation
For Your Safety........................................................... ii-iii
Table of Contents....................................................... 4-5
SENSIT® GOLD G2 Models (Sensors Included)...........6
Parts and Accessories....................................................7
General Description.................................................... 8-9
Specifications...............................................................10
Product Features.....................................................11-13
Sensor Types and Pumps............................................14
Basic Operation
Battery Installation/Replacement..................................15
Operation and Use................................................. 16-22
Bar Hole Test.......................................................... 23-24
Leak Search Mode (Optional)......................................25
Purge Mode (Optional).................................................26
Working Display Peak Readings (Optional).................27
CO Test (Optional)........................................................28
Calibration Check.........................................................29
User Menu
User Menu / Function Descriptions........................ 30-31
Show Time, Set Clock..................................................32
Print..............................................................................33
Bump Test.....................................................................34
Cal, O2 Test..................................................................35
4
CONTENTS
User Menu
Gas Type......................................................................36
Calibration Log: Show and Print Calibration Log..........37
Session Log: Show and Print Session Log..................38
BH Log, SMART-CAL...................................................39
Cal Due, Auto Log........................................................40
CF Test: Show, Print Test Results.......................... 41-43
Calibration
Calibration Overview, Definitions..................................44
Calibration Auto Cal................................................ 45-46
Carbon Monoxide (CO) Calibration..............................47
Hydrogen Sulfide (H2S) Calibration.............................48
Hydrogen Cyanide (HCN) Calibration..........................49
Methane Calibration (50% (2.5%) LEL Methane)..............50
Methane Calibration (100%).........................................51
Propane Calibration (1.1%) or (50% LEL)....................52
Oxygen Sensor Test.....................................................53
Advanced Settings
Expert Menu Feature Definitions............................ 54-55
Expert User Chart................................................... 56-57
Warranty........................................................ Back Cover
5
SENSIT GOLD G2 MODELS (Sensors Included)
Model No. LEL
%Vol
O2
CO
H2S
911-00000-01
•
911-00000-02
•
911-00000-03
•
911-00000-04
•
911-00000-05
•
•
•
911-00000-06
•
•
•
911-00000-07
•
•
•
911-00000-08
•
•
•
•
911-00000-09
•
•
•
911-00000-51
•
•
911-00000-52
•
• 911-00000-53
•
•
911-00000-54
•
• 911-00000-55
•
•
•
•
911-00000-56
•
• •
•
911-00000-57
•
•
•
•
911-00000-58
•
•
•
•
•
911-00000-59
•
•
•
•
HCN
•
•
•
•
•
•
6
•
•
PARTS AND ACCESSORIES
Standard Accessories (Included)
872-00001
360-00040
870-00018
360-00105
750-00039
310-00004
883-00036
Hard Carrying Case
Wrist Strap
Extra Sensor Cap with O-Rings
T10 Torx Wrench
Instruction Manual
3”C” Alkaline Batteries
2 Piece Polycarbonate Probe Assembly
Accessories and Replacement Parts
870-00018
870-00012
873-00016
883-00023
883-00021
883-00015
883-00019
873-00013
883-00018
883-00030
874-00001
883-00046
870-00004
870-00039
914-00000-01
Sensor Cap with “O” Rings
Extension Adapter
Hydrocarbon Filter (1)
Hot Air Probe Assembly
32” Heavy Duty Fiberglass Probe
Confined Space Probe with Tubing
32” Fiberglass Probe
Inline “Mini” Hydrocarbon Filter (1)
30” Brass Probe
Purge Probe
Leak Survey Drag Tube Assembly
Telescopic Survey Probe
IR Printer
IR Link Interface w/ SmartLink Software
Smart-Cal Automatic Calibration Station
Calibration Kits
Contact us with instrument model number for correct Calibration Kit.
7
GENERAL DESCRIPTION
The SENSIT® GOLD G2 is designed to detect combustible gases,
oxygen content and toxic gases when so equipped with the available
sensors. Each model of the SENSIT® GOLD G2 provides specific
detection features based on approved sensor options. Each SENSIT®
GOLD G2 can be re-configured or upgraded by the manufacturer for an
additional charge should your sensing requirements change.
SENSIT® GOLD G2 configurations include measuring PPM, LEL and/
or % volume of combustible gases, measurement of oxygen, carbon
monoxide, and/or hydrogen sulfide or hydrogen cyanide gas(es).
SENSIT® GOLD G2 instruments incorporate an advanced low power
semiconductor sensor to measure combustible gases in the LEL (Lower
Explosive Limit) range and a thermal conductivity style sensor to measure
combustible gases in the percent volume range. The user may select
either methane or propane gas readings from a user menu depending on
the sensing requirements.
An automatically backlit display shows all gas concentrations being
measured. LEDs located on the front of the instrument indicate preset
visual warnings of increased gas concentration. All gases are continuously
sampled with the use of an internal pump. Audible and visual alarms warn
the operator of hazardous conditions being sensed.
The preset alarms are indicated by a red flashing LED, display indicator
and alarm sound. The combustible gas alarm is preset for 50% LEL (2.5%
methane or 1.1% propane).
8
GENERAL DESCRIPTION
When equipped with the optional percent volume sensor, alarms remain
activated up to 17% methane (12% propane). The carbon monoxide (CO)
alarm is factory preset at 35ppm. The oxygen (O2) alarms are preset
at below 19.5% and above 23.5%. The hydrogen sulfide (H2S) alarm is
preset at 10ppm. The hydrogen cyanide (HCN) alarm is set to 5ppm.
The SENSIT® GOLD G2 instrument is approved ATEX Zone 1
intrinsically safe Ex ib IIB T3 IP54 and UL CLI, Div 1 Groups C & D, T3
hazardous locations. Consult Sensit Technologies for certificate details.
APPROVED BATTERIES: Duracell® PROCELL PC1400
Per FCC Part 15, this device must accept any interference received,
including interference that may cause undesired operation.
9
SPECIFICATIONS
SENSOR SPECIFICATIONS
TYPE
RESOLUTION
RANGE
ACCURACY
LEL
0.1% up to 2%
0-100% LEL
±10%
increments
% GAS
0.1%
5-100% METHANE
±5%
2.2-100% PROPANE
PPM
1ppm or 10ppm
0-10,000ppm
O 2
0.1%
0-25%
±10%
±0.2% or 10%**
CO
1ppm
0-2000ppm
±5ppm or 5%**
H2S
1ppm
0-100ppm
±2ppm or 5%**
HCN
1ppm
0-30ppm
±2ppm or 5%**
** Whichever is greater
PRODUCT SPECIFICATIONS
Size:
Weight:
Operational Temp:
Storage Temp:
Battery Life:
0891
11.5 x 3 x 2.3 in (292 x 76 x 59 mm)
1.2 lb. (544 g)
-4 to 104° F (-20 to 40° C)
-22 to 140°F (-30 to 60° C)
Alkaline: approximately 18 hrs. continuous
II 2 G
Ex ib IIB T3
AEx ia IIB T3
IP54
ATEX Cert. No. TRAC11ATEX21304X
Listed UL 913
Intrinsically Safe for Use in Class I, Groups C and D, T3 Hazardous Locations
10
PRODUCT FEATURES
LUER PROBE CONNECTOR
SENSOR CAP
LEL / PPM SENSOR
INFRARED COMMUNICATIONS
GRAPHIC DISPLAY
ALARM LEDs
OPERATION BUTTONS
WATER-RESISTANT HOUSING
FLEXIBLE GOOSENECK
BATTERY COMPARTMENT
11
PRODUCT FEATURES
Sensit® Gold G2 instruments are constructed of durable ABS
plastic to withstand the rigors of field use.
Incorporated in the hand grip area is the battery compartment. All
Sensit® Gold G2 instruments require 3 “C” type alkaline batteries.
APPROVED BATTERIES: PROCELL® PC1400 batteries provide
approximately 18 hours of use.
The tick can be easily heard with the speaker located in the back of the
instrument.
An infrared communication window is located on the right side to allow
the Sensit® Gold G2 instrument to download calibration data,
readings the operator has elected manually to save to the on board
memory, as well as communicate with the Smart-Cal Calibration Station
and IR Link computer interface.
A flexible gooseneck is used to assist in locating the source of gas
leaks and remote sampling. A water/dirt trap is located at the end
with a convenient luer style connector to attach sampling and probe
accessories.
12
PRODUCT FEATURES
A graphic display continuously updates the operator of all available gas
concentrations and alarms simultaneously as well as indicates internal
functions such as air flow and battery power.
Below the display is a series of LEDs that are preset to indicate
combustible gas concentrations. The red LED on the right side will flash
during any alarm condition. In darkened environments the backlight will
illuminate in red during alarm conditions.
There are 3 operational button pads on the front of all Sensit®
Gold G2 instruments.
BUTTON (A) POWER/MUTE
Operates POWER and MUTE features and exit menu items.
BUTTON (B) TICK/MENU
Operates the Tick Rate Control, Bar Hole Test and to enter, change and
select menu items.
BUTTON (C) SAVE/ZERO
Use for save data feature, manually zero sensors, scroll and change
menu items.
13
SENSOR TYPES AND PUMPS
Combustible Gas Sensor
All Sensit® Gold G2 instruments incorporate a highly sensitive and
uniquely designed semiconductor sensor. The function and accuracy of
the sensor are monitored and controlled by specialized circuitry and a
microprocessor. This sensor is capable of measuring concentrations
of as low as 1ppm methane up to 100% LEL. When equipped with the
percent volume sensor, concentrations above 70% LEL are monitored
or measured simultaneously with a state-of-the-art thermal conductivity
sensor (TC). This sensor is capable of measuring high concentrations
of gas quickly and accurately. All readings are automatically switched
between the scales of PPM (if so equipped), LEL and percent volume.
Electrochemical Sensors (optional)
All Sensit® Gold G2 instruments when equipped with the following
optional sensors, microprocessor and associated circuitry will measure
oxygen levels from 0-25%, measure carbon monoxide (CO) levels from
0-2000ppm and measure hydrogen sulfide (H2S) levels from 0-100ppm
or hydrogen cyanide (HCN) levels from 0-30ppm. All gases are displayed
simultaneously on the display.
The Pump
The Sensit® Gold G2 instruments are equipped with a powerful
and efficient pump. A water/dirt filter at the end of the gooseneck
protects the pump from foreign material. An additional internal filter also
helps to protect the pump from damaging debris. There are audible and
visual indicators that will show a blocked or improperly operating pump.
NOTE: Operating the instrument without a sensor cap or with an altered
sensor cap can cause damage to the instrument and void the warranty.
14
BATTERY INSTALLATION/REPLACEMENT
A battery strength icon is located at the lower right corner of the display
which indicates the approximate battery capacity. Battery replacement
is necessary when the display icon displays an empty battery silhouette
and flashes a countdown timer in seconds indicating the maximum time
before instrument shut down. This timer begins at 300 seconds and
decreases to 0. During the low power indications the green LED will flash
and a warning beep will be sounded. Prior to shut down the display will
show BAT LOW in the main display.
⚠ WARNING: Always change batteries in a non-hazardous location.
Remove the battery sleeve cover by removing the retaining screw (#10
Torx). Depressing the locking tab on the front of the handle with a coin
or flat object and pull the handle away from the top or display area of the
instrument.
NOTE: Observe the polarity markings on the inside of the battery holder.
Instrument will not operate with improperly installed batteries.
⚠ WARNING: Never mix batteries of different type or age.
Place three (3) approved batteries into the battery holder. For best results
hold the battery compartment so that it lays in one of your hands. With
your other hand slide the first battery with the negative (-) contact toward
the battery spring. Insert the remaining batteries in the same direction.
The last battery will contact the positive (+) tab at the end of the holder.
If you do not use one of your hands to hold the bottom of the battery
compartment the batteries may come out.
Replace the battery sleeve and allow the locking tab to snap into position.
Replace and secure the retaining screw. Check to be sure the handle is
secure to the instrument body by firmly pulling the handle away.
15
OPERATION AND USE
⚠ CAUTION: Always start any Sensit® Gold G2 in a gas free
environment to ensure a proper zero.
1.Push the POWER/MUTE BUTTON (A) until the instrument beeps and the
display illuminates. Each of the following will be displayed:
a.Sensit Technologies Logo
b.System check that includes:
i. LED check
ii. Backlight check
iii. Memory check
iv. Pump check
v. Battery check
vi. Microprocessor check
vii. Pressure sensor check
viii. Clock check
ix. Auto Log Check (alert at 50 records remaining before memory is full and overwrites)
c. Display all active sensors
d.Display “SENSIT GOLD G2, Configuration Number and Software revision”.
e.Date and Time
f. Gas Type (indicating type of calibration gas)
g. Serial Number
h.Cal Due (up coming), Last Cal (if activated) or Cal Past Due
i. Sensor Warm Up and Please Wait
j. Autozero (all gases and pressure sensor)
k. Auto Bump Test (optional)
l. Working display showing all gases sensed and battery power remaining
16
OPERATION AND USE
2.If the display fails to illuminate or BAT LOW is shown on the display,
replace the batteries.
3.If any sensor is past the intended calibration cycle, CAL DUE will
appear during the start-up sequence. The instrument will also show
which sensor is due for calibration at that time.
During “Autozero” all sensors will be displayed with the zeroing result
(passed or failed).
4. If after the warm-up period, the instrument determines that a sensor is
inoperable, an ERROR message will flash for that sensor. Then FAIL will
show on the display for the corresponding sensor. Attempt to manually
zero using SAVE/ZERO BUTTON(C).
5.The display will indicate the type of gas used for calibration (i.e. Nat or
Pro) and the unit of measure (i.e.: LEL, PPM, % VOL) below all readings.
If PPM display is selected, the measurement auto-ranges to LEL at levels
above 2000ppm. When equipped with the optional percent volume sensor the
measurement auto-ranges at 100% LEL. The display will indicate by changing
the unit of measure below the reading to “%v/v”.
17
OPERATION AND USE
6.Prior to use, test the integrity of the sensor cap and tubing. Use your
finger to block the inlet of the sensor cap for 4-5 seconds. The display
will read FLOW BLOCKED if all seals are intact.
If this does not occur, change the sensor cap and “O” rings. A spare
sensor cap and “O” rings are supplied with each instrument. During
pump flow block, a beep will occur every 2 seconds and the green LED
will flash until adequate flow is present.
7.It may be necessary to manually zero the instrument based on
company practices and environmental conditions. Always zero the
instrument in a clean air environment.
8.When testing areas with elevated temperatures such as appliance
vents or flues, always attach the optional hot air probe to the end of the
sensor cap. These connections need only be finger tight. Failure to use
the approved probe can result in damage to the instrument and may
void the warranty.
⚠ CAUTION: Do not handle the steel portion of any hot air probe
after use. Burns may occur!
18
OPERATION AND USE
9. When sampling high areas or overhead lines the use of the optional
extension adapter will allow a broom handle or painters stick to extend
the instrument to the area where sensing must be accomplished. This
adapter slides onto the battery sleeve and is held in place by the locking
nut assembly.
10. When sampling the appropriate sensors will cause the display to
update when a gas is encountered. Additionally, if a combustible gas is
encountered a series of LEDs on the front of the instrument will illuminate
when the preset concentrations are reached. If any alarm condition exists
for any sensor, based on their preset alarm points, the red (HAZARD 3)
LED will flash and the alarm will sound unless it is muted.
Additionally, the reading for the gas exceeding the alarm set point will
also flash.
19
OPERATION AND USE
The standard factory preset LED indicators and alarm points are:
a. Combustible gas: Methane, audio and visual alarm indicators
from 5% LEL to 100% LEL.
i. Green LED/Ready = 0% - 4.9% LEL Methane
ii. Amber LED/Low = 5% - 9.9% LEL Methane
iii.Red LED/Haz1 = 10.0% - 24.9% LEL Methane
iv.Red LED/Haz2 = 25.0% - 49.9% LEL Methane
v. Red Flashing LED/Haz3
METHANE: 50% LEL Methane to 17% volume* Methane
(LED indicator only above 17% volume Methane)
PROPANE: 50% LEL Propane to 12% volume* Propane
(LED indicator only above 12% volume Propane)
*When equipped with percent volume sensor.
b. Oxygen - below 19.5% and above 23.5%
c. Carbon Monoxide - 35ppm per utility industry standards
d. Hydrogen Sulfide - 10ppm and above per Federal OSHA guidelines
e. Hydrogen Cyanide - 5ppm and above
⚠ Caution: There are gases that can poison or be cross sensitive
to the combustible gas sensor. Contact SENSIT Technologies for
cross-sensitivity information.
20
OPERATION AND USE
11. To disable the alarm, quickly press the POWER/MUTE BUTTON (A).
To enable the alarm press the same button again. During an alarm the
gas that has exceeded the preset alarm point will flash on the display and
the HAZARD 3 LED will flash indicating a potentially unsafe condition.
When combustible gas readings exceed the alarm range, all LEDs
(except green and red HAZ3) will turn off. If the alarm condition no
longer exists, the alarm sound will activate if a new alarm condition is
encountered.
12. To assist in locating small leaks press and release the TICK/MENU
BUTTON (B). The SELECT TEST TICK is displayed. Push the TICK/
MENU BUTTON (B) to activate the tick.
Upon activation a tick can be heard and a full bar graph is displayed. As
the sensor head is moved toward a leak source the tick will increase.
At any time press the TICK/MENU BUTTON (B) to reset the speed of
the tick to the slow, steady rate. The bar graph will decrease in size
indicating a decreasing range of tick rate sensitivity. Each bar division
(there are 5) represents approximately 5000ppm methane.
MENU BUTTON (B) to reset the tick so that is audible. Pressing the
POWER/MUTE BUTTON (A) disables the tick
NOTE: Whenever possible use the instrument prior to using a leak
detection solution.
21
OPERATION AND USE
13. At any time the operator may save the readings on the display by
pressing the ZERO/SAVE (C) button. This will save all readings for
download at a later time. The memory is factory set to store events. This
can be adjusted from 1-100 at the factory. The most recent save is first
during download. An optional Auto log software of extended memory can
store up to 1,600 records. (Consult factory for details.)
14. Following Federal, State, Municipal and/or Company procedures
move to the areas where gas readings are suspected or must be tested.
Use necessary accessories to draw samples from areas not accessible
with the instrument itself, such as confined spaces or flues. During
sampling, the respective readings may change. Audible and visual alarms
will activate when the preset limits are reached.
15. When equipped with the percent volume sensor, if the instrument
encounters a gas it is not calibrated to, it may read “NSR” or “NSC”
followed by a number. If the instrument is calibrated for natural gas “NSR”
(Non Standard Response) likely indicates a heavy non combustible gas
(i.e.: heavier than air, such as carbon dioxide, etc.). If the response is
“NSC” Non Standard Combustible) the gas is likely a heavy hydrocarbon,
such as gasoline, propane, butane, etc. If the instrument is calibrated for
propane, “NSR” likely indicates gas lighter than air such as helium . “NSC”
may indicate methane, hydrogen or natural gas.
16. When being used in dark areas an automatic backlight will illuminate
the display.
17. To turn instrument off, press/hold the POWER/MUTE BUTTON (A)
until the beeping sound stops and POWER OFF appears on the display.
Release the button and shut down will occur after the purge time.
22
BAR HOLE TEST
For percent volume equipped units
To assist pinpointing the location of underground leaks, the Bar Hole
Test feature may be used. This feature will draw a timed sample (45
seconds) and display sustained and peak readings.
NOTE: Use an approved barhole probe with filter to prevent damage
to the instrument when conducting bar hole surveys.
To Conduct a BAR HOLE Test:
Prior to the test, attach the approved bar hole probe to an operating
instrument. Block the inlets of the probe to test for any air leakage. The
instrument will show FLOW BLOCKED in approximately 10 seconds if
all seals are good. If flow block is not detected, check the integrity of
the “O” ring seals and connections on the probe and instrument. If flow
block can not be achieved, contact the factory for assistance. An air tight
system is crucial for accurate readings.
From the working display, press & release the TICK/MENU BUTTON (B).
SELECT TEST will appear on the top line of the display. Press SAVE/
ZERO BUTTON (C) to BH Test. Press & release TICK/MENU BUTTON
(B) to enter the BH menu. Insert the bar hole probe into the location for
the survey. Press and release TICK/MENU BUTTON (B) once more to
start the test. A 45 second countdown for the test will begin. The current
percent of gas by volume detected will be displayed on the left. The
peak percent of gas by volume detected will be displayed on the bottom.
At the conclusion of the test, the pump will shut off and any sustained
and peak readings will be shown and recorded.
23
BAR HOLE TEST
If you have another test to take, press & hold the SAVE/ZERO BUTTON
(C). This will restart the pump and clear the last readings. When the
readings have returned to zero, release SAVE/ZERO BUTTON (C). The
countdown timer will restart.
You may encounter NSR (Non-Standard Response) or NSC (NonStandard Combustible) readings during the bar hole test. Changing
the GAS TYPE, a selection in the USER MENU may help to identify a
questionable vapor.
A hydrocarbon filter kit is available to help screen if contact with heavy
hydrocarbons is suspected.
Please consult the factory for details. If you wish to cancel during a test
or return to the working display, press & release the POWER/MUTE
BUTTON (A).
24
LEAK SEARCH
(optional)
To conduct a LEAK SEARCH (LS):
To enter the LEAK SEARCH mode from the work display, press and
release the TICK/MENU (B) button. Press and release the SAVE/ZERO
(C) button until LS is displayed on the bottom of the screen. Press and
release the TICK/MENU (B) button. LEAK SEARCH will be displayed on
the top of the screen with 0 PPM on the bottom screen.
Attach a drag tube assembly or telescoping survey probe. The instrument
has a preset alarm of 10ppm (adjustable, contact Sensit for details.) The
instrument will read in 1ppm increments up to 5000ppm, auto range to
LEL and then to %v/v.
To zero the instrument in the LS mode, press and hold the SAVE/ZERO
(C) button until “Autozero” is displayed. Any alarm can be muted by
pressing and releasing the POWER/MUTE (A) button once. If the alarm
sound is turned off before an alarm condition is met, the alarm will remain
off until activated by pressing and releasing the POWER/MUTE (A)
button. If the alarm sound is muted during an alarm condition and the
concentration of gas is below the alarm threshold, the alarm will activate if
the concentration exceeds the alarm threshold again.
To exit the LS mode, press and hold the POWER/MUTE (A) button for 2-3
seconds to exit to the work display.
25
PURGE Mode
(optional)
NOTE: This feature is for purging lines in and out of service only
(purging with line gas)
To conduct a PURGE:
To enter the PURGE mode from the work display, press and release the
TICK/MENU (B) button. Press and release the SAVE/ZERO (C) button
until PURGE is displayed on the bottom of the screen.
Press and release the TICK/MENU (B) button. PURGE TEST will be
displayed on the top of the screen with %v/v on the bottom left side of the
screen and O2 % on the bottom right side of the screen. If O2 (oxygen) is
not installed, an “X” will appear.
Attach a purge probe. Do not create a tight seal where the purge probe
is inserted for sampling. Allow for blow by so the unit does not get over
pressurized.
The LEL sensor is turned off during this mode to prevent unnecessary
exposure to high levels of gas for an extended period time. The O2
readings (if equipped) will reflect the amount of oxygen in the line.
To exit the PURGE mode, press and release the POWER/MUTE (A)
button to exit to the work display. A “Please Wait” message will flash (the
LEL sensor is being powered back on) and this message will appear for a
minimum of 5 seconds up to a maximum of 5 minutes.
26
work display peak readings
(optional)
To enter the WORK DISPLAY PEAK READINGS mode from the work
display, press and release the TICK/MENU (B) button. Press and release
the SAVE/ZERO (C) button until WDPK is displayed on the bottom of the
screen.
Press and release the TICK/MENU (B) button. The unit will exit back to the
work display with the peak readings logged under the real time readings.
To reset the peak readings, press and hold the SAVE/ZERO (C) button
until “Autozero” is displayed (Note: this should be done in a gas free
environment).
To exit the WDPK mode, press and hold the POWER/MUTE (A) button for
2-3 seconds to exit to the work display without peak readings.
27
co test
(optional)
From the working display, press & release TICK/MENU BUTTON (B)
once, SELECT TEST will appear on the top line of the display. Press &
release the SAVE/ZERO BUTTON (C) until CO is displayed.
Press & release the TICK/MENU BUTTON (B) again to enter the CO test
menu. Press & release the TICK/MENU BUTTON (B)) once more to start
the test.
NOTE: Using the SAVE/ZERO BUTTON (C) may advance you to another
test option depending on the instrument version.
A 180 second timed test will begin. (The time for this test is factory
adjustable.) A countdown timer will show the remaining seconds of the test.
During this test period, the detected ppm CO level will be displayed on
the left. Simultaneously, the peak ppm CO level detected will be displayed
and recorded on the right.
The test number, date, time and detected peak ppm CO level will be
automatically stored by the instrument for display or printout at a later
date.
Press & release the TICK/MENU BUTTON (B) to repeat the test. Press
& release the POWER/MUTE BUTTON (A) to return to the work display.
28
CALIBRATION CHECK
To verify the accuracy of any SENSIT® GOLD G2, it must be exposed
to a known concentration of test gas that will test any sensor combination
included in your particular model.
Any sensor that does not meet the specifications listed in this manual
may require calibration or repair. A calibration check does not update the
calibration due date. Full calibration is required to update these times.
A calibration past due message will illuminate during warm-up if calibration
has not been performed per your company specified interval. Any time it is
suspected that the SENSIT® GOLD G2 is not working properly, check
calibration.
29
User MENU
The SENSIT® GOLD G2 has several categories within the User Menu.
The first twelve fields are standard with all instruments. The last two
are only available in certain instrument models when ordered with the
Extended Memory option.
SHOW TIME:
Displays current date and time.
(Cannot be changed from this location.)
SET CLOCK:
Set date and time. Displayed using a 24 hour clock.
(User adjustable)
PRINT:
Print Session Logs, Cal Log, access Smart-Cal
communication, (print CO test or print CF test is
optional with some extended memory units).
BUMP TEST:
Perform automatic test for sensors response to
calibration gas within 60 seconds or less.
CAL:
Calibrate all sensors, access
calibration procedure.
O2 TEST:
20 second test to check depletion of the O2 sensor
when exposed to the proper gas, such as 100%
methane.
GAS TYPE:
Change between Natural and Propane..
30
AUTO CAL manual
User MENU
CAL LOG:
Display last calibration of all sensors.
SES LOG:
Display saved gas readings with the corresponding
date and time.
BH LOG:
Display barhole logs with the corresponding date and
time.
SMART CAL:
Prepare for use with calibration station.
CAL DUE:
Display future calibration due dates for each gas.
NOTE: Standard LOG size is 6 events but up to 100 records can be
stored per session, BH Test, CO Test and CF test.
NOTE: These additional fields are found on certain models ordered
with the Extended Memory option.
AUTOLOG:
Automatic storage of peak gas readings of up to 1,600
events.
CF LOG:
Display calculated AIR FREE CO levels recorded
during timed test.
31
user MENU
SHOW TIME
From the working display, access the menu by pressing and holding the
TICK/MENU BUTTON (B) until the display reads USER MENU/SHOW
TIME. Press TICK/MENU BUTTON (B) one time to display the time and
date. Press any button to return to the USER MENU.
SET CLOCK
From the working display access the menu by pressing and holding the
TICK/MENU (B) until the top line reads USER MENU. Press & release
the SAVE/ZERO BUTTON (C) until the bottom line displays SET
CLOCK.
Press & release the TICK/MENU BUTTON (B) once to enter the menu.
The day will be the section flashing on the display. To change this
section, press & release the TICK/MENU BUTTON (B) for adjustments.
Press & release the SAVE/ZERO BUTTON (C) to advance to the next
section (month, year or time).
Press & release the POWER/MUTE BUTTON (A) to save the selection.
To exit this menu, press & release the POWER MUTE BUTTON (A).
32
user MENU
PRINT
For all printing operations, the printer is only to be used in nonhazardous locations.
From the working display access the menu by pressing & holding the
TICK/MENU BUTTON (B) until the top line of the display reads USER
MENU. The bottom line will read SHOW TIME.
Press & release the SAVE/ZERO BUTTON (C) until “PRINT” is
displayed. Press & release the TICK/MENU BUTTON (B) once to enter
the menu.
Prepare the optional IR printer. Aim the IR window (on the right side of
the instrument) at the IR window on the printer.
Press & release the SAVE/ZERO BUTTON (C) to scroll to the item you
want to print. Press & release the TICK/MENU BUTTON (B) to print that
item. To exit this menu, press & release the POWER/MUTE BUTTON
(A) until the instrument returns to the working display.
33
user MENU
BUMP TEST
From the working display, press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) to scroll until the bottom line reads BUMP TEST.
Prepare the appropriate certified gas mixture for your instrument model
(see proper gas mixtures listed in the Calibration section).
Apply the gas to the instrument and press & release the TICK/MENU
BUTTON (B) to start the BUMP TEST.
The display will show the gas value being tested on the top line with
registered gas value and a 45-60 second countdown on the bottom line.
The instrument will automatically check the LEL sensor and also the CO
and H2S sensors, if they are installed.
If each sensor tested reads at least 80% of the value of the gas, within
the time period required, the display will flash BUMP TEST PASS
before returning to the USER MENU automatically. Press & release the
POWER/MUTE BUTTON (A) to exit and return to the working display.
If any sensor fails, the display will show BUMP TEST FAILED. This
means that calibration is required. If calibration is unsuccessful, remove
the instrument from service. Consult the factory in the event of any
failure.
To exit this menu, press & release the POWER/MUTE BUTTON (A) to
return to the working display.
34
user MENU
cal
See Calibration section on Page 44.
O2 TEST
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) to scroll until the bottom line reads O2 TEST.
Apply recommended gas mixture void of oxygen, such as 100% Methane
or 100% Nitrogen and press & release the TICK/MENU BUTTON (B) to
start the test.
A 20 second countdown will begin. If the sensor shows proper depletion
within this period, PASSED will flash on the display.
Press & release the POWER/MUTE BUTTON (A) to return to the
working display.
If the O2 sensor does not respond properly within the 20 second test,
FAILED will appear on the display. Remove the instrument from service.
Consult the factory in the event of any failure.
To exit this menu, press & release the POWER/MUTE BUTTON (A) to
return to the working display.
35
user MENU
GAS TYPE
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until the bottom line reads GAS TYPE. Press & release the
TICK/MENU BUTTON (B)
To change the gas type, press & release either button (B) or (C). You
can select either NAT (methane) or PRO (propane) as your primary
gas. Once you have made your selection, press & release the POWER/
MUTE BUTTON (A) to store the gas. Press & release the POWER/MUTE
BUTTON (A) to return to the working display.
NOTE: Prior to use, confirm that the instrument is reading accurately
when switching gas types. Verification is recommended by conducting a
Bump Test or Calibration.
36
user MENU
CAL LOG
To Show a Calibration Log
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) to scroll until the bottom line reads CAL LOG.
Press & release the TICK/MENU BUTTON (B) once to enter the menu.
Calibration data will be displayed. After viewing the calibration data for
the last sensor, the next scroll will return the display to the USER MENU.
To exit this menu, press & release the POWER/MUTE BUTTON (A).
To Print a Calibration Log
From the working display, press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) to scroll until the bottom line reads PRINT.
Press & release the TICK/MENU BUTTON (B) once to enter the menu.
Press & release the SAVE/ZERO BUTTON (C) to scroll until the desired
log to be printed appears.
Prepare the optional IR printer. Aim the IR window on the right side of the
instrument at the IR printer. Press & release the TICK/MENU BUTTON
(B) to print the log.
To exit this menu, press & release the POWER/MUTE BUTTON (A) to
return to working display.
37
user MENU
SESSION LOG
To Show a Session Log
From the working display, press & hold the TICK/MENU BUTTON
(B) until the top line reads USER MENU. Press & release the SAVE/
ZERO BUTTON (C) to scroll until the bottom line reads SES LOG.
Press & release the TICK/MENU BUTTON (B) once to enter the menu.
SESSION 1 will be displayed.
This is the most recent data saved. Press & release the SAVE/ZERO
BUTTON (C) to scroll to the session number you want to view. The
SAVE/ZERO BUTTON (C) will advance and the TICK/MENU BUTTON
(B) will go back to the previous session.
The standard number of available stored sessions is factory set at 6 but
is adjustable up to 100. To exit this menu, press & release the POWER/
MUTE BUTTON (A) to return to the working display.
To Print a Session Log
From the working display, press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until PRINT is displayed. Press & release the TICK/MENU
BUTTON (B) once. SES LOG will be displayed.
Prepare the optional IR printer. Aim the IR window, on the right side
of the instrument, at the IR printer. Press & release the TICK/MENU
BUTTON (B) to print the log.
Press & release the POWER/MUTE BUTTON (A) to return to the
working display.
38
user MENU
SHOW BH LOG
From the working display access the menu by pressing and holding the
TICK/MENU BUTTON (B) until the display reads USER MENU SHOW
TIME. Press the SAVE/ZERO BUTTON (C) to scroll to USER MENU
SHOW BH LOG.
Press TICK/MENU BUTTON (B) to select this feature. The last record
will be displayed. The heading will display BH LOG: XXX (indicating
record number) and the date/time of the record. Below will include the
recorded (PK) and (ON) concentrations. The SAVE/ZERO BUTTON (C)
advances to the next record while pressing the TICK/MENU BUTTON
(B) returns you back to the previous record. Press the POWER/MUTE
BUTTON (A) to return to the USER MENU.
SMART-CAL
From the working display, press & hold the POWER/MUTE BUTTON
(A) for 2-3 seconds. The display will read SMART CAL communicating.
Place the instrument into the cradle on the left side of the Smart-Cal
Calibration Station. Attach the tubing from the station to the instrument.
Press & release the CALIBRATE button on the Smart -Cal and calibration
will begin automatically. If successful, CALIBRATION PASSED will show
on display. If unsuccessful, CALIBRATION FAILED will show.
Let the instrument clear and repeat the calibration process. If the
instrument will not pass, remove the instrument from service. Consult
the factory in the event of any failure.
39
user MENU
CAL DUE
From the working display access the menu by pressing and holding the
TICK/MENU BUTTON (B) until the display reads USER MENU/SHOW
TIME. Press the SAVE/ZERO BUTTON (C) to scroll to USER MENU/
CAL DUE.
Press the TICK/MENU BUTTON (B) to select this feature. The heading
will display CAL DUE if the sensor is past calibration or NEXT CAL
indicating when the sensor is due. Press the POWER/MUTE BUTTON
(A) to return to the USER MENU.
AUTOLOG
(Included with every unit that has the optional CF Test feature)
With this feature the instrument will automatically save the peak
readings of all sensors while the unit is operating in the working display.
These peak readings are stored in Events with a maximum capacity of
1,600 events. They are stored accumulatively throughout day to day use
until the maximum capacity is reached. Each use of the SAVE/ZERO
BUTTON (C) to make a manual save will also record one event.
To Retrieve Autolog Events:
Stored autolog events can be downloaded, in a non-hazardous area, to a
PC using the infared computer interface IR LINK (IR LINK with software
order #870-00039). Please contact the factory for more information on
this accessory.
40
user MENU
CF TEST
Only available as an option for instruments with CO and O2 and the extended
memory feature.
To Conduct a CF Test
NOTE: The hot air flue probe must be used with the instrument when
conducting this test to prevent damage to the instrument and to receive
proper calculations.
IMPORTANT: Air free CO levels or CF readings are calculated by
the instrument based on CO and O2 levels detected during flue gas
sampling of gas fired appliances.
From the working display, press & release TICK/MENU BUTTON (B)
once, SELECT TEST will appear on the top line of the display. Press &
release the SAVE/ZERO BUTTON (C) until CF is displayed.
Press & release the TICK/MENU BUTTON (B) again and the instrument
will auto-zero and then enter the CF test menu. Press & release the
TICK/MENU BUTTON (B) once more to start the test.
NOTE: Using the SAVE/ZERO BUTTON (C) may advance you to
another test option depending on the instrument version.
A 180 second timed test will begin. (The time for this test is factory
adjustable.) A countdown timer will show the remaining seconds of the
test. The peak CF reading will start to flash “OPK”. It will continue to
flash until 20 seconds after the oxygen level drops below 18.9%. At this
point, conditions are acceptable for a valid test calculation.
41
user MENU
CF TEST
If this segment continues to flash during the test period, conditions
for a proper test were not possible. In this case any test results
are invalid. The display and printout will show N/A for the peak CF
reading. The test should be repeated.
During the test period, the detected ppm CO level will be displayed
on the left side of the screen. Simultaneously, the calculated ppm CF
reading and the calculated peak ppm CF level will be displayed on the
right side of the screen.
If the proper conditions for an accurate test existed (O2 below 18.9%),
the detected CO level, calculated CF level and the peak CF level will
remain on the display at the end of the test.
The CF readings are automatically recorded by the instrument and can
be viewed at a later date. In addition, the peak CF reading will be stored
for a printout report.
Press & release the TICK/MENU BUTTON (B) to repeat the test. Press
& release the POWER/MUTE BUTTON (A) to return to the working
display.
42
user MENU
CF TEST
To Show a CF Test
From the working display, press & hold TICK/MENU BUTTON (B) until
the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) to scroll until the bottom line reads CF LOG.
Press & release the TICK/MENU BUTTON (B). CF TEST 1 will appear.
This represents the most recent CF test data stored.
Invalid test data will show as “N/A” for the peak CF level. Data from
previous test can be viewed by scrolling with the SAVE/ZERO BUTTON
(C). Press & release the POWER/MUTE BUTTON (A) to return to the
work display.
To Print a CF Test
From the working display, press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until PRINT is displayed.
Press & release the TICK/MENU BUTTON (B) once to enter this menu.
Press & release the SAVE/ZERO BUTTON (C) to scroll until the bottom
line reads CF LOG.
Prepare the optional IR printer. The IR window is on the right side of the
instrument. Aim the IR window at the printer. Press & release the TICK/
MENU BUTTON (B) to print the CF test data.
Invalid test data will show as “N/A” for the peak CF level. Press & release
the POWER/MUTE BUTTON (A) to return to the working display.
43
CALIBRATION
Calibration is the process of setting the readings of the instrument to
equal the value of certified calibration gases. Prior to calibration allow
the instrument to operate for 5 to 10 minutes in a room environment free
of combustible, CO, H2S or HCN gases.
Manually zero the instrument prior to beginning the calibration process.
NOTE: Using calibration kits other than recommended by SENSIT
TECHNOLOGIES may cause inaccurate readings. Repairs are required
if any sensor fails to calibrate. Consult the factory for details.
NOTE: When calibrating, the numbers shown on the display represent
the numbers seen by the microprocessor and should not be confused
with actual gas readings.
These readings will update every 5 seconds during calibration.
Definitions
AUTO CAL is an automatic calibration process not requiring a docking station.
2.5% V/V is the calibration point for the low end of the 100% volume sensor.
50% LEL indicates calibration of the LEL and PPM sensors.
100 PPM CO indicates the calibration point of the carbon monoxide sensor.
25 PPM H2S indicates the calibration point of the hydrogen sulfide sensor.
10 PPM HCN indicates the calibration point of the hydrogen cyanide sensor.
SMART-CAL is the automatic calibration system using IR communication.
44
CALIBRATION
Prior to starting calibration prepare the necessary gases per the sensor
configuration.
From the working display access the menu by pressing and holding the TICK/
MENU BUTTON (B) until the display reads USER MENU SHOW TIME. Press
the SAVE/ZERO BUTTON (C) to scroll to USER MENU CAL .
Press the TICK/MENU BUTTON (B) to the calibration modes. The display will
now show CAL AUTO CAL. Pressing the SAVE/ZERO BUTTON (C) will allow
viewing of all other modes of calibration.
AUTO CAL
AUTO CAL automatically calibrates the instrument to all gases detected
by the sensors installed. From the AUTO CAL menu, press the TICK/
MENU BUTTON (B) . Attach the prepared gas as listed on the display.
A countdown timer shows the time remaining to connect . Failure to
connect will result in a FAIL message and an alarm sound (press any
button to continue).
During the test, the gas type, the target concentration and digital output
of the sensor (not concentration) will be displayed. Following each gas
tested PASS or FAILED will be displayed. It is possible to manually stop
the test once it is started by pressing the POWER/MUTE BUTTON (A).
At the end of the test CAL AUTO CAL will be indicated. Pressing the
POWER/MUTE BUTTON (A) will save the results and return to the
USER MENU.
45
CALIBRATION
AUTO CAL (Continued)
Pressing the SAVE/ZERO BUTTON (C) will scroll through the individual
sensors that are configured in your G2 for calibration. Pressing the
TICK/MENU BUTTON (B) selects the option. Attach the proper gas and
wait for the instrument to provide a PASS or FAILED indication.
If the calibration has failed press the TICK/MENU BUTTON (B) to
attempt again or scroll to the next gas. Upon successful calibration the
calibration due date reminder is automatically updated.
From this menu pressing the SAVE/ZERO BUTTON (C) again will
provide access to the SMART-CAL automatic calibration system.
Pressing the TICK/MENU BUTTON (B) from SMART-CAL menu
begins the communication process. Consult the SMART-CAL system
instructions for connection details.
NOTE: A calibration failure is indicated on the display by FAILED. Recalibration should be attempted. Any instrument that does not accept
calibration should be taken out of service.
Please contact SENSIT TECHNOLOGIES for any needed repairs.
46
Manual CALIBRATION
The following instructions pertain to manual calibration of the SENSIT®
GOLD G2. If you are using the automatic Smart-Cal Calibration System,
the procedure is different. See the Smart-Cal sections of this manual or
consult the Smart-Cal instruction manual for details.
CARBON MONOXIDE (CO) CALIBRATION (100PPM CO/AIR)
From the working display, press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until the bottom line reads CAL.
Press & release the TICK/MENU BUTTON (B) once. The bottom line
will read AUTO CAL. Scroll with the SAVE/ZERO BUTTON (C) until CO
100PPM is displayed. Apply 100ppm CO/Air calibration gas and press &
release the TICK/MENU BUTTON (B) to start CO calibration.
When the reading is satisfactory, the display will flash DATA SAVED
indicating that calibration is complete for that sensor. The date for CAL
PAST DUE is automatically reset for that sensor as well.
Scroll with the SAVE/ZERO BUTTON (C) if you need to calibrate another
sensor. When finished, remove and shut off the gas supply. Press &
release the POWER/MUTE BUTTON (A) to return to the working display.
47
Manual CALIBRATION
HYDROGEN SULFIDE (H2S) CALIBRATION (H2S 25 PPM)
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until the bottom line reads CAL.
Press & release the TICK/MENU BUTTON (B) once. The bottom line will
read AUTO CAL. Press & release the SAVE/ZERO BUTTON (C) until
the bottom line reads H2S 25ppm.
Apply 25ppm H2S/AIR to the instrument and press & release the TICK/
MENU BUTTON (B) to start H2S calibration.
When the reading is satisfactory, the display will flash DATA SAVED
indicating that calibration is complete for that sensor. The date for CAL
PAST DUE is automatically reset for that sensor as well.
Scroll with the SAVE/ZERO BUTTON (C) if you need to calibrate another
sensor. When finished, remove and shut off the gas supply. Press &
release the POWER/MUTE BUTTON (A) to return to the working display.
48
Manual CALIBRATION
HYDROGEN CYANIDE (HCN) CALIBRATION (HCN 10 PPM)
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until the bottom line reads CAL.
Press & release the TICK/MENU BUTTON (B) once. The bottom line will
read AUTO CAL. Press & release the SAVE/ZERO BUTTON (C) until
the bottom line reads HCN 10ppm.
Apply 10ppm HCN/N2 to the instrument and press & release the
TICK/MENU BUTTON (B) to start HCN calibration. When the reading
is satisfactory, the display will flash DATA SAVED, indicating that
calibration is complete for that sensor.
The date for CAL PAST DUE is automatically reset for that sensor as
well. Scroll with the SAVE/ZERO BUTTON (C) if you need to calibrate
another sensor. When finished, remove and shut off the gas supply.
Press & release the POWER/MUTE BUTTON (A) to return to the
working display.
49
Manual CALIBRATION
COMBUSTIBLE GAS CALIBRATION
(50% (2.5%) LEL METHANE)
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until the bottom line reads CAL.
Press & release the TICK/MENU BUTTON (B) once, the bottom line
will read AUTO CAL. Press & release the SAVE/ZERO BUTTON (C)
once. The bottom line will read 2.5%V/V. Apply 50%LEL methane/air
calibration gas and press & release the TICK/MENU BUTTON (B) to
start 50% LEL calibration.
When readings stabilize, the display will read DATA SAVED indicating
calibration is complete for that sensor. Do not remove the gas until
the second DATA SAVED flashes. Two calibrations take place during
the 50%LEL Methane calibration. The date for CAL PAST DUE is
automatically reset for that sensor as well.
Scroll with the SAVE/ZERO BUTTON (C) if you need to calibrate another
sensor. When finished, remove and shut off the gas supply. Press &
release the POWER/MUTE BUTTON (A) to return to the working display.
50
Manual CALIBRATION
COMBUSTIBLE GAS CALIBRATION (100% METHANE)
NOTE: After calibration of 100% Methane, it is recommended to autozero the unit before use.
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until the bottom line reads CAL. Press & release the TICK/
MENU BUTTON (B) once, the bottom line will read AUTO CAL.
Press & release SAVE/ZERO BUTTON (C) to scroll until the bottom line
reads 100%V/V. Apply 100% methane to the instrument. Immediately
press & release the TICK/MENU BUTTON (B) to start 100% methane
calibration.
When the reading is satisfactory, the display will flash DATA SAVED
indicating that calibration is complete for that sensor. The date for CAL
PAST DUE is automatically reset for that sensor as well.
Scroll with the SAVE/ZERO BUTTON (C) if you need to calibrate another
sensor. When finished, remove and shut off the gas supply. Press &
release the POWER/MUTE BUTTON (A) to return to the working display.
51
Manual CALIBRATION
COMBUSTIBLE GAS CALIBRATION
(1.1% PROPANE or 50% LEL PROPANE)
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Press & release the SAVE/ZERO
BUTTON (C) until the bottom line reads CAL. Press & release the TICK/
MENU BUTTON (B) once. The bottom line will read AUTO CAL.
Press & release the SAVE/ZERO BUTTON (C) to scroll until the bottom
line reads 1.1%V/V. Apply 1.1% propane (50% LEL propane) to the
instrument. Immediately press & release the TICK/MENU BUTTON (B)
to start propane calibration.
When the reading is satisfactory, the display will flash DATA SAVED
indicating that calibration is complete for that sensor. Do not remove the
gas until the second DATA SAVED flashes. Two calibrations take place
during the 1.1%V/V propane calibration.
The date for CAL PAST DUE is automatically reset for that sensor as
well. Scroll with the SAVE/ZERO BUTTON (C) if you need to calibrate
another sensor. When finished, remove and shut off the gas supply.
Press & release the POWER/MUTE BUTTON (A) to return to the
working display.
52
Manual CALIBRATION
OXYGEN SENSOR TEST
To determine if the O2 sensor is working properly, verify the sensors
reaction by exposing it to a calibration gas void of oxygen, such as 100%
methane or 100% nitrogen.
From the working display press & hold the TICK/MENU BUTTON (B)
until the top line reads USER MENU. Scroll with SAVE/ZERO BUTTON
(C) until the bottom line reads O2 TEST.
Apply proper gas and press & release the TICK/MENU BUTTON (B) to
start the test. A 20 second countdown will begin. If the sensor shows
proper depletion within this period, PASSED will flash on the display.
Press & release the POWER/MUTE BUTTON (A) to return to the
working display.
If the O2 sensor does not respond properly within the 20 second test,
FAILED will appear on the display.
Consult the factory in the event of any failure. Press & release the
POWER/MUTE BUTTON (A) to return to the working display.
NOTE: A calibration failure is indicated on the display by FAILED. Recalibration should be attempted. Any instrument that does not accept
calibration should be taken out of service. Please contact the factory for
any needed repairs.
53
expert MENU feature DEFINITIONS
CONTRAST: Set display contrast for better viewing
TICK: Set normal speed of tick rate when resetting
%LEL MODE: Set to LEL display. If off readings are %V/V
100% LEL: Set the value of LEL between 4-5% methane
LEL RESOLUTION: Set reading increments on display
NEW O2: Tracks install date
N COMP: Specialized sensor compensation software
CAL DUE REMINDER: Alert system for calibration
DUE ACK: Requires operator to push a button when cal is overdue
PROPANE 100%: Requires calibration to 100% propane
N2 for O2: Requires oxygen test using N2
SHOW SES LOG: Show the session log on display
SHOW BH LOG: Show bar hole test logs on display
SHOW CF/CO LOG: Show CO and CF test logs on display
ALARM SETTINGS: Limits for alarms
LOW LED: Concentration when first LED illuminates
Continued On Next Page.
54
expert MENU feature DEFINITIONS
POWER OFF: Automatic shut off time
PURGE TIME: Run time before instrument shut down after power off
BH TIME: Adjustment for the bar hole test time
CF/CO TIME: Adjustment for the CO test time
ERASE AUTO: Erase the AUTO LOG
NG FACTOR: Factor for methane content in 100% natural gas
NSR: Disable gas distinguishing software
NSC: Disable combustible/inert identifier
NSC LEL: Concentration to activate NCS control
AUTO BUMP: Enable required bump test
TICK FIRST: Position of tick in test menu
MUTE LATCH: If in mute, unit can remain until reactivated
ERASE LOG: Erase all sessions, BH, CO, CF Logs
CAL RQD: Set instrument to shut down after “Cal Past Due”
55
expert feature chart
FEATURE
SETTINGSDEFAULT
SERVICE:
CONTRAST
0-63
30
% LEL MODE
ON/OFF
ON
100%LEL N
4.0-5.0
5.0
100%LEL P
1.8-2.2
2.2
RESOLUTION
0.0-2.0
0.0
N COMP
ON/OFF
OFF
CAL DUE
30,45,60,90,180,360 DAYS 30
DUE ACK
ON/OFF
OFF
N2 FOR O2
ON/OFF
OFF
SHOW SES
ON/OFF
ON
SHOW BH ON/OFF
ON
SHOW AUTO
ON/OFF
OFF
LOW O2
17.5-20.5
19.5%
HIGH O2
21.5-23.5
23.5%
CO
5-300
35ppm
H2S
2-30
10ppm
HCN
2-20
5ppm
LEL
1.0-99.0
50.0 %v/v
NAT
5.0-100.0
17.0 %v/v
PRO
2.0-100.0
12.0 %v/v
ALARM:
56
expert feature chart
FEATURE
SETTINGSDEFAULT
POWER OFF
0-480 MIN.
60 MIN.
PURGE TIME
0-120 SEC.
10 SEC.
BH TIME
5-120 SEC.
20 SEC.
ERASE AUTO
ERASE AUTO
PASSWORD REQ.
NG FACTOR
50-100
100
NSR
ON/OFF
ON
NSC
ON/OFF
ON
NSC LEL
1.0-10.0
2.0
AUTO BUMP
0-30
0
OFF
MUTE LATCH
ON/OFF
ERASE LOG ERASE ALL SES LOG
LANGUAGE ENGLISH
TURKISH
CHINESE
57
PASSWORD REQ
ENGLISH
Notes
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warranty
Your SENSIT® GOLD G2 is warranted to be free from defects in
materials and workmanship for a period of two years after purchase
(excluding calibration and batteries). The circuit board and percent gas
sensor (TC) are warranted for 5 years. If within the warranty period, your
instrument should become inoperative from such defects, the unit will be
repaired or replaced at our option.
This warranty covers normal use and does not cover damage which
occurs in shipment or failure which results from alteration, tampering,
accident, misuse, abuse, neglect or improper maintenance. Proof
of purchase may be required before warranty is rendered. Units out
of warranty will be repaired for a service charge. Internal repair or
maintenance must be completed by a SENSIT Technologies authorized
technician. Violation will void warranty. Units must be returned postpaid,
insured and to the attention of the Service Dept. for warranty or repair.
This warranty gives you specific legal rights and you may have other
rights which vary from state to state.
SENSIT Technologies
851 Transport Drive
Valparaiso, IN 46383
Phone: (219) 465-2700
888 4 SENSIT (473-6748)
Fax: (219) 465-2701
SENSIT GOLD G2 Instruction Manual
Part # 750-00039
Revision 7-1-2015
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