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Gas and Specialty Sensors

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GDS Series
 
Product Information
 
 
GDS
Kele Toxic and Combustible Gas Detector
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Description

The GDS Series Gas Detector is a standalone micro-processor-based system for continuous, effective monitoring of toxic and combustible gases. The GDS Series provides a 4-20 mA output in proportion to the level of gas present and two relay outputs to activate additional horns, strobes, or ventilation systems. The modular design adds functionality and flexibility with pre-calibrated plug-in sensors. The unit features a two-line LCD for local indication, self test diagnostics, and a built-in 85 dBA buzzer. The rugged NEMA 4 polycarbonate housing is resistant to rust, corrosion, and dents.

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Features
  • Pre-calibrated plug-in sensors
  • Built-in 85 dBA buzzer
  • 4-20 mA and two relay outputs
  • Wide variety of gases detected
  • Two-line LCD
  • Wall or duct mount
  • LED status indication
  • Password protection
  • Easy installation, commissioning, and operation
  • NEMA 4 enclosure
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Specifications
Power requirements:17-27 VAC, 50/60 Hz, 0.35A; 24-38 VDC
Output:4-20 mA and two DPDT relays, 5A @ 250 VAC
Alarm contacts:DPDT pilot duty, 150 VA max inductive, 5A @ 30 VDC, 250 VAC
Audible alarm:85 dBA @ 10' (3m)
Visual indicators
  Green LED:power
  Amber LED 1:Alarm/fault
  Amber LED 2:Alarm/fault
Sensing technology
  CO, O2, H2S, NO2:Electrochemical for toxic gases
  CH4, C3H8, H2:Catalytic combustion for combustible gases 
Detection range
  CO:0-250 ppm
  O2:0-25%
  H2S:0-50 ppm
  NO2:0-10 ppm
  CH4, C3H8, H2:0-100% LEL 
Display resolution
  CO:1 ppm
  O2:0.2%
  H2S, NO2:0.2 ppm
  CH4, C3H8, H2:0.5%
Display:8 character, two-line LCD
Average sensor life
  CO:6 years
  Others :2 years 
Calibration interval:6 months
 Operating temperature  
  CO :-4º to 122ºF (-20º to 50ºC)
  Others :-40º to 122ºF (-40º to 50ºC) 
Enclosure:Polycarbonate
Dimensions:8.1"H x 5.9"W x 2.7"D (20.6 x 14.9 x 6.7 cm)
Weight:0.86 lb (0.35 kg)
Agency approvals:UL61010, CSA C22.2
Warranty:1 year
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Certifications
CSA
CUL-US