*Click Here for Universal Gas Detector* (Sensor requires transmitter for operation)
Specifications
Sensor Model GS-840DQS
Detection principle Electrochemical
Range, Standard 0 – 0.3 ppm
Electrolyte EL- 860-1
Membrane M – 801M
Applied Voltage + 200 mV
T90 < 30 seconds
Housing Material PVC/PTFE
Dimensions 3 ½” (H) x 1 3/8” (D)
Operating Temperature -10° to + 40° C
Humidity 10 – 100%
Installation Angle 45° maximum
Cross Sensitivities
Gas | Concentration | Indication |
O3 | 0.3 ppm | 0.3 ppm |
Cl2 | 0.2 ppm | 0.3 ppm |
ClO2 | 0.1 ppm | 0.1 ppm |
HCl | 15 ppm | Slight Effect |
HF | 9 ppm | 0 ppm |
NH3 | 75 ppm | 0 ppm |
H2 | 4% | 0 ppm |
CO | 1000 ppm | 0 ppm |
H2S | 29 ppm | 0 ppm |
NO | 1% | 0 ppm |
NO2 | 100 ppm | Slight Effect |
CH4 | 4 % | 0 ppm |
R22 | 140 ppm | 0 ppm |
SO2 | 15 ppm | Slight Effect |
CH3OH | 700 ppm | 0 ppm |
Note * Consult PureAire for additional ranges