Sensit HXG-2d Instruction Manual
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Sensit HXG-2d Instruction Manual

Combustible gas detector
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INSTRUCTION MANUAL
SENSIT
Combustible Gas Detector
Read and understand instructions before use.
710183
UL 913
Intrinsically Safe for Use in
Class I, Groups C and D, T3
Hazardous Locations
For use in clean dry areas only.
Suitable for combustible gases such as Methane,
Butane, Propane and Natural Gas
®
851 Transport Drive • Valparaiso, IN 46383 (USA)
Phone: 219.465.2700 • www.gasleaksensors.com
HXG-2d

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  • Page 1 INSTRUCTION MANUAL SENSIT HXG-2d ® Combustible Gas Detector Read and understand instructions before use. 710183 UL 913 Intrinsically Safe for Use in Class I, Groups C and D, T3 Hazardous Locations For use in clean dry areas only. Suitable for combustible gases such as Methane, Butane, Propane and Natural Gas 851 Transport Drive •...

  • Page 2: For Your Safety

    All Accessories are to be used in an area known to be non-flammable. ⚠ WARNING: Use only sensor from SENSIT Technologies. PN 375-2611-01 NOTE: Performance/Accuracy aspects of this product have not been assessed and are not covered as a part of the SGS approval.

  • Page 3: Table Of Contents

    CONTENTS Preparation For Your Safety .............. ii Parts and Accessories ...........4 General Description ............5 Sensor Specifications ............6 Product Features ............7-9 Sensor Type ..............10 Basic Operation Battery Installation/Replacement .........11 Operation and Use ..........12-14 Calibration Check ............15 Calibration ............. 15-16 Sensor Replacment .............17 Adjustable Features.............18 Options Menu ............

  • Page 4: Parts And Accessories

    PARTS AND ACCESSORIES Standard Accessories (Included) Soft Carrying Pouch 360-00006 T10 Torx Wrench 360-00105 Duracell “C”Alkaline Battery (ea) 310-00004* Wrist Strap 360-00040 Instruction Manual 750-00022 Accessories and Replacement Parts LEL Sensor 375-2611-01 Sensor Cap with Filter Disc 882-00036 Filter Disc Replacement 360-00203 Extension Adapter 870-00012...

  • Page 5: General Description

    GENERAL DESCRIPTION The SENSIT® HXG-2d is designed to detect combustible gases. This instrument incorporates an advanced low power semiconductor sensor to measure a wide variety of combustible gases in both the PPM and %LEL range. The PPM readings auto-range to %LEL when the concentration exceeds 990PPM (2%LEL methane or 4.5%LEL propane).

  • Page 6: Sensor Specifications

    1.2 lbs. (544 g) Operational Temp: -20° to 40° C (-4 to 104° F) Battery Life: Alkaline: 50 hours continuous The SENSIT® HXG-2d meets US UL913 requirements when used with Duracell PC1400 batteries. 710183 UL 913 Intrinsically Safe for Use in Class I, Groups C and D, T3 Hazardous Locations For use in clean dry areas only.

  • Page 7: Product Features

    PRODUCT FEATURES SENSOR ALARM LED GRAPHIC DISPLAY OPERATION BUTTONS ELECTRONIC TICK CONTROL FLEXIBLE GOOSENECK BATTERY COMPARTMENT...
  • Page 8 PRODUCT FEATURES SENSIT® HXG-2d instruments are constructed of durable high impact ABS to withstand the rigors of field use. Incorporated in the hand grip area is the battery compartment. All SENSIT® HXG-2d instruments require 3. Duracell PC1400 batteries provide approximately 50 hours of continuous use.

  • Page 9: Product Features

    PRODUCT FEATURES There are 3 operational button pads on the front of all SENSIT® HXG-2d instruments. BUTTON (A) POWER/MUTE Operates the POWER and MUTE features and exit menu items. BUTTON (B) TICK/CAL Use to operate TICK or begin calibration. BUTTON (C) LIGHT/ZERO...

  • Page 10: Sensor Type

    SENSOR TYPE COMBUSTIBLE GAS SENSOR All SENSIT® HXG-2d instruments incorporate a highly sensitive semiconductor type 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 10ppm of methane/propane up to 100% LEL.

  • Page 11: Battery Installation/Replacement

    BATTERY INSTALLATION/REPLACEMENT ⚠ CAUTION: Always change batteries in an environment free of combustible gases. ⚠ Warning: Do not mix batteries of different type or age. Battery replacement is necessary when the BAT icon is illuminated and the green LED is flashing. This warning indicates there is approximately 15 minutes or less operational time before the instrument turns off automatically due to insufficient battery power.

  • Page 12: Operation And Use

    OPERATION AND USE ⚠ CAUTION: Always start any SENSIT® HXG-2d in a gas free environment to insure a proper zero. 1. Push and hold the power button (A) until the display and backlight illuminates. 2. If the display fails to illuminate or the BAT icon is shown on the display, replace the batteries.
  • Page 13 OPERATION AND USE 4. All instruments read with a resolution of 10ppm up to 990ppm. The scale automatically switch to LEL when 990ppm is exceeded with a resolution of 0.1% LEL. Optionally all readings may be displayed in LEL only. Readings beyond 100% LEL are indicated by “OL”...
  • Page 14 OPERATION AND USE NOTE: These instruments have cross sensitivities to a variety of gases. 9. To assist in locating the source of small combustible gas leaks or surveying areas outdoors or indoors, press and release the TICK/CAL button (B). This will start an audible tick preset at 2-3 ticks per second. Move the sensor toward the area suspected of leakage.

  • Page 15: Calibration Check

    CALIBRATION CHECK To verify the accuracy of any SENSIT® HXG-2d it must be exposed to a known concentration of test gas. Any sensor that does not meet the specifications listed in this manual may require calibration or replacement. Any time it is suspected the SENSIT® HXG-2d is not working properly, has read “OL”...

  • Page 16: Calibration

    Continued unsuccessful calibrations may indicate faulty sensor. Any instrument that will not calibrate or continues to indicate “bAd” on the display, should be taken out of service. Please contact Sensit Technologies for further assistance.

  • Page 17: Sensor Replacment

    ⚠ WARNING: Substitution of components may impair intrinsic safety. ⚠ WARNING: Use only sensor from SENSIT Technologies. Part Number 375-2611-01 Step 1: Turn off instrument. Step 2: Remove sensor cap and sensor retainer filter. Step 3: Remove sensor. Observe the location of the tab relative to the white dot beneath, on the circuit board.

  • Page 18: Adjustable Features

    ADJUSTABLE FEATURES MENU ITEMS RANGE DEFAULT Alarm PPM 100-990% Alarm - LEL 2-60% Show PPM 10PPM Resolution Gas Type Methane or Propane Methane (CH4) Changing the calibration gas for CH4 (methane) or PRO (propane) While the unit is on and in the working display, press and release the A and C buttons together until the display shows Opt.

  • Page 19: Options Menu

    OPTIONS MENU The option menu is used to change the unit to show ppm/LEL or LEL only. It is also used to change the alarm point of the unit in ppm or LEL. LEL alarm point is adjustable from 2% to 60%. PPM alarm point is adjustable from 99 to 990 PPM.
  • Page 20 OPTIONS MENU HXG-2D Option Menu (continued) How to change LEL Alarm point with PPM readings on display Press and release the A and C buttons. “Opt” will be shown. Press and release the B button. “diS” and “%” will be shown.

  • Page 21: Options Menu

    OPTIONS MENU How to change LEL Alarm point with LEL readings on display Press and release the A and C buttons. “Opt” will be shown. Press and release the B button. “diS” and “%” will be shown. Press and release the B button. “AL” and “%” will be shown. Press and release the B button.
  • Page 22 NOTES ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________...
  • Page 23 NOTES ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________...

  • Page 24: Warranty

    WARRANTY Your SENSIT® HXG-2d instrument is warranted to be free from defects in materials and workmanship for a period of two years after purchase (excluding sensor, calibration and batteries). 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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