Specification :

Sensor Specifications
Gas Range Resolution
Hydrogen Sulfide ( H2S) 0 to 300 ppm 1 ppm
Carbon Dioxide ( CO2) 0 to 50, 000 ppm 10 ppm
Methane ( CH4) 0 to 100% LEL 1% LEL
Hydrocarbons ( HC) 0 to 100% LEL 1% LEL
Carbon Monoxide ( CO) 0 to 1000 ppm 1 ppm
Oxygen ( O2) 0 to 30% VOL 0.1% VOL

Detector Specifications
Size 6.6" L x 5.9" W x 4.3" H ( 16.8cm x 15cm x 10.9cm)
Weight 7.7 lbs ( 3.5 kg)
Detector Protected, Off-line pre-calibrated, interchangeable smart
NDIR sensor
Calibration Two-point calibration
Accuracy d ± 5% FS
Response Time ( T90) d 30 seconds to 90% of reading to span gas
Enclosure Rating ATEX: Ex II 2 G Ex d II C T6
China Certification: Ex d II C T6
IP Rating IP-65
Power 9 to 36VDC, max 60mA at 24V or 1.5W
Output 4-20mA, RS-485 ModBus RTU ( Baud rate of 4.8, 9.6, or 19.2 Kb/ s)
Sampling Internal diffusion
Display 7-segment, 4-digit LCD ( if the reading digits are more than 4,
LCD will display “ X.XEX� for X.X x 10x)
User Interface 4 color-coded alarm LEDs Magnetically accessed keys for
non-intrusive calibration and adjustment
Operating Temperature -40° F to 140° F ( -40° C to 60° C)
Humidity 0 to 95% relative humidity ( non-condensing)
Pressure 0.9 to 1.1 ATM
Dry Contacts Max 30V, 2A, normally open ( or normally closed) , one for low
and high alarm, and another for faults
Terminal AWG24-12
Mounting 2 holes 5.25" ( 13.3cm) from center to center