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INSTRUCTION MANUAL
SENSIT
Gas Detection Instrument
For use with combustible gases and optionally available
oxygen and toxic gases.
Read and understand
instructions before use.
0891
Ex ib IIB T3
AEx ia IIB T3
IP54
ATEX Cert. No. TRAC11ATEX21304X
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.
II 2 G
Listed UL 913
851 Transport Drive • Valparaiso, IN 46383 (USA)
Phone: 219.465.2700 • www.gasleaksensors.com
GOLD G2
®
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Summary of Contents for Sensit GOLD G2
- Page 1 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.
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Page 2: For Your Safety
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. - Page 3 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.
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Page 4: Table Of Contents
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 .......... - Page 5 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 ..........
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Page 6: Sensit Gold G2 Models (Sensors Included)
SENSIT GOLD G2 MODELS (Sensors Included) Model No. %Vol 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 • •... -
Page 7: Parts And Accessories
PARTS AND ACCESSORIES Standard Accessories (Included) 872-00001 Hard Carrying Case 360-00040 Wrist Strap 870-00018 Extra Sensor Cap with O-Rings 360-00105 T10 Torx Wrench 750-00039 Instruction Manual 310-00004 3”C” Alkaline Batteries 883-00036 2 Piece Polycarbonate Probe Assembly Accessories and Replacement Parts 870-00018 Sensor Cap with “O”... -
Page 8: General Description
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). -
Page 9: General Description
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. -
Page 10: Specifications
SPECIFICATIONS SENSOR SPECIFICATIONS TYPE RESOLUTION RANGE ACCURACY 0.1% up to 2% 0-100% LEL ±10% increments % GAS 0.1% 5-100% ±5% METHANE 2.2-100% PROPANE 1ppm or 10ppm 0-10,000ppm ±10% 0.1% 0-25% ±0.2% or 10%** 1ppm 0-2000ppm ±5ppm or 5%** 1ppm 0-100ppm ±2ppm or 5%** 1ppm 0-30ppm... -
Page 11: Product Features
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... - Page 12 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.
- Page 13 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.
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Page 14: Sensor Types And Pumps
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. -
Page 15: Battery Installation/Replacement
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. -
Page 16: Operation And Use
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. - Page 17 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.
- Page 18 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”...
- Page 19 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.
- Page 20 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.
- Page 21 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.
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Page 22: Operation And Use
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. -
Page 23: Bar Hole Test
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. - Page 24 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 (Non- Standard Combustible) readings during the bar hole test.
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Page 25: Leak Search Mode (Optional)
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. -
Page 26: Purge Mode (Optional)
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. -
Page 27: Working Display Peak Readings (Optional)
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. -
Page 28: Co Test (Optional)
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. -
Page 29: Calibration Check
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. -
Page 30: User Menu / Function Descriptions
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. - Page 31 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.
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Page 32: Show Time, Set Clock
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. -
Page 33: Print
USER MENU PRINT For all printing operations, the printer is only to be used in non- hazardous 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. -
Page 34: Bump Test
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). -
Page 35: Cal, O2 Test
USER MENU 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 &... -
Page 36: Gas Type
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 &... -
Page 37: Calibration Log: Show And Print Calibration Log
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 &... -
Page 38: Session Log: Show And Print Session Log
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 &... -
Page 39: Bh Log, Smart-Cal
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. -
Page 40: Cal Due, Auto Log
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. -
Page 41: Cf Test: Show, Print Test Results
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. - Page 42 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.
- Page 43 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 &...
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Page 44: Calibration
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. -
Page 45: Calibration Auto Cal
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. -
Page 46: Calibration Auto Cal
NOTE: A calibration failure is indicated on the display by FAILED. Re- calibration should be attempted. Any instrument that does not accept calibration should be taken out of service. Please contact SENSIT TECHNOLOGIES for any needed repairs. -
Page 47: Carbon Monoxide (Co) Calibration
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. -
Page 48: Hydrogen Sulfide (H2S) Calibration
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 &... -
Page 49: Hydrogen Cyanide (Hcn) Calibration
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 &... -
Page 50: Methane Calibration (50% (2.5%) Lel Methane)
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 &... -
Page 51: Methane Calibration (100%)
MANUAL CALIBRATION COMBUSTIBLE GAS CALIBRATION (100% METHANE) NOTE: After calibration of 100% Methane, it is recommended to auto- zero 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. -
Page 52: Propane Calibration (1.1%) Or (50% Lel)
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. -
Page 53: Oxygen Sensor Test
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. -
Page 54: Expert Menu Feature Definitions
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... -
Page 55: Expert Menu Feature Definitions
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... -
Page 56: Expert User Chart
EXPERT FEATURE CHART FEATURE SETTINGS DEFAULT SERVICE: CONTRAST 0-63 % LEL MODE ON/OFF 100%LEL N 4.0-5.0 100%LEL P 1.8-2.2 RESOLUTION 0.0-2.0 N COMP ON/OFF CAL DUE 30,45,60,90,180,360 DAYS DUE ACK ON/OFF N2 FOR O2 ON/OFF SHOW SES ON/OFF SHOW BH ON/OFF SHOW AUTO ON/OFF... - Page 57 EXPERT FEATURE CHART FEATURE SETTINGS DEFAULT 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 ON/OFF ON/OFF NSC LEL 1.0-10.0 AUTO BUMP 0-30 MUTE LATCH ON/OFF...
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- Page 59 NOTES ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________...
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Page 60: 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.
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Questions and answers
My device does not power up. Replaced batteries with new batteries. Screen does not turn on and unit does not start. I have batteries in correctly and batteries are good. I tried resetting by press and holding button A and B. Unit still does not power up
If your Sensit GOLD G2 device is not powering up despite replacing the batteries and attempting a reset, possible reasons include:
1. Battery Compatibility – Ensure you are using approved batteries, specifically Duracell® PROCELL PC1400.
2. Battery Installation – Verify that the batteries are correctly installed with proper polarity.
3. Device Damage – Check for signs of physical damage, water ingress, or corrosion in the battery compartment.
4. Internal Component Failure – A defect in the circuit board, microprocessor, or power button may be preventing startup.
5. Warranty or Service Need – If the unit remains inoperative, it may require servicing by an authorized SENSIT Technologies technician.
If these steps do not resolve the issue, the device may need professional repair.
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Sensit Gold G2 - What is the manufacturer's recommendation for a full calibration interval? The manual onsite mentions daily bump checks and to perform full calibrations should an error message occur. Beyond the daily bump tests, are there any recommendations for full calibration interval.
The recommended full calibration interval for the SENSIT® GOLD G2 is based on your company's specified interval. Calibration must be performed according to this interval, and a calibration past due message will appear during warm-up if it has not been done.
This answer is automatically generated