Combustible Gas Sensors

Hydrogen Sensor - Combustible Gas Sensors also sutiable for Feul-Cell Operations


GB100C and GB100/AP-C (Hydrogen Sensor) out-perform competitor's products. Outstanding accuracy and dependability, combined with low power consumption, long life and low cost, provide the GasBoss products with features to economically enhance safety in your mine or plant.

Main Features:

  • 1 Dependable in industrial sites
  • 2 Can be calibrated for 80+ other combustible gases
  • 3 Long life, accurate in service, and easy to install
  • 4 Fast response, stable readout in a few seconds
  • 5 Silicone poison-resistant cells are standard
  • 6 1-5 mA output with automatic line drop compensation
  • 7 4-20mA output converter available
  • 8 Range: 0-100% LEL, field adjustible for 0-50% LEL
  • 9 Digital meter available, reads 0-100%
  • 10 Large digital display for local readout is standard
  • 11 Advanced circuitry for low power and maximum safety
  • 12 Wide input voltage range 8-28 VDC, 11.5V max for I.S. circuits
  • 13 Lowest current drain; only 56ma with full scale output
  • 14 Three-wire hookup, uses 14-20 AWG, shielded cable
  • 15 Test jack permits readout with external milliammeter
  • 16 Approved CAN/CSA-22.2 No. 60079-0 Explosive Atmospheres
  • 17 Matching I.S. barrier is available for easy installation
  • 18 Two models available, covering external and internal installations
  • 19 Painted mild steel (NEMA-12) or aluminum enclosure -- SS hardware
  • 20 Modular design for easy maintenance
  • 21 Epoxy-potted circuitry avoids problems with dust and moisture
  • 22 Remote calibration adapters and splash shields are available
  • 23 Simple calibration and modular maintenance
  • 24 Thousands in use for years, demonstrating a 8-year MTBF
Hydrogen Sensor
Physical --
Size ceiling mount -- 4-1/2"W x 4-1/2"H x 5-1/4"D
(115mm x 115mm x 133mm)
Size wall mount -- 6-1/2"W x 9"H x 5-1/2"D
(166mm x 231mm x 140mm)
Weight ceiling mnt -- 2.5 pounds (1.1 kg)
Weight wall mount -- 5 pounds (2.2 kg)
Construction -- Painted Steel or Aluminum
Hinged door for wall mount
Hardware -- Stainless Steel
Circuit module -- Potted for moisture/dust resistance
Terminals -- 3, #4 screw type; + power, + signal and - negative return (common)
Cable access ports -- One 7/8" (22mm) dia.
Electrical --
Input voltage--8-28 VDC FA, 11.5VDC I.S.
Analog output--1-5mA current loop
Input current--76mA quiescent, + 4maA span signal
Current driver--Automatic compensation for load/line resistance
Fuse/Grounding--None required
Cable--3 conductor, size 14-20 AWG
Sensing elements--Pellister bridge* (replaceable)
* Standard NDIR upon request
Access to ambient--Diffusion (no pump required)
Range--0-5% volume in air (standard)
Accuracy--+/- 2% F.S. (when calibrated)
Sensitivity--+/- 0.1% F.S. (when calibrated)
Drift--Usually less than 2% F.S. per month
Response time--15 sec to 68% change
Linearity--Within 1% F.S. in normal alarm range
Output noise--Random, less than 1% F.S.; filtered
Expected sensor life--1-5 years under normal conditions, Less in high gas or poisoning environment
Shelf life--10 years, in original package
Operation --
Start-up--Dependable readout 15 seconds after applying power
Computer interface--1-5 mA current loop
Transmission distance--Up to 700’, depends on voltage drop
Calibration frequency-- Monthly recommended
Environmental --
Operating temp---20 to 40C (-4 to 104F)
Storage temp.---20 to 40C (-4 to 104F)
Temp Class--T4
Shock--+/- 10G any axis, non-contact
Dust--Heavy industrial, with filter
Humidity--5 to 95%, without condensation
RF and sonic noise--None known
Ambient pressure--Negligible to 5K ft altitude
Other gases (80+ gases)--Comparative output at 50% LEL (2% volume) hydrogen
Special options --
LED indicator--Indicates signal current flow
Front panel readout--1/2" high characters, 4 digit LCD
Temperature effect--None, over operating temp range
Repair philosophy--Modular replacement with connectors
Test/cal jack--1/8" (3.2 mm) for portable ammeter
Cell dust filter--Supplied - removable, washable
Oil vapor filter--Optional, specify contaminants
Calibration adapter--Plastic cap with hose barb available
Calibration kit--Kit with 2-tanks, valve & flow meter in portable box with tubing. 50% LEL gas available to NBS standards.
Safety approvals --
UL-913, NFPA-70-- Intrinsically Safe, Class I, Div 1, Group B, C, D
UL 61010-1-- General use
CAN/CSA-C22.2 No. 61010-1-- Equipment general requirements
CAN/CSA-C22.2 No. 60079-0 -- Explosive Atmospheress
CAN/CSA-C22.2 No. 60079-11 --Equipment protection by intrinsic safety

GB100-C and GB100/AP-C is a registered Rel-Tek trademark.

Related Keywords: hydrogen sensor for battery room, hydrogen sensor calibration, hydrogen sensor ppm, hydrogen sensor for gas, hydrogen gas detector hydrogen sulfide, hydrogen sulfide gas, H2S

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