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IR-622 Combustible Gas Sensor
Brand: Detcon IncDetcon Model IR-622 sensors are non-intrusive “Smart” sensors designed to detect and monitor Combustible Hydrocarbons over the range of 0-100% LEL (lower explosive limit).
The sensor assembly consists of a miniature infrared optical sensor in a stainless steel housing that includes a splashguard with integral cal port, a plug-in control transmitter circuit, a base connector board and an explosion proof enclosure.
Specifications
Brand
Accuracy
- ± 3 % of Full Scale - for 0 to 50 % LEL
- ± 5 % of Full Scale - for 50 to 100 % Lower Explosive Limit (LEL)
Approvals & Certifications
- CSA Class I, Div. 1, Groups B, C, D
- NRTL
- UL Class I, Div. 1, Groups B, C, D
Communication
- Modbus Via RS-485
Consumption
- < 3 W at 24 Vdc
Display
- Backlit LCD Display
Electrical Connectors
- Junction Box
Enclosure, Body Material
- Stainless Steel
Environmental Protection
- Explosion-proof Class I, Div. 1, Groups B, C, D
- IP66
- NEMA 4X
Humidity
- 0 to 99 % Relative Humidity, Non-Condensing
Indication
- LED Indicator for FAULT & CAL Status
Input
- 22.5-28 Vdc
Materials of Construction
- 316 Stainless Steel - Junction Box
- Aluminum - Junction Box
Measuring Range
- 0 to 100 % Lower Explosive Limit (LEL)
NPT Connection
- 3/4” NPT Female
Operating Temperature
- -40° to 75° C (-40° to 167° F)
Output
- Linear 4-20 mA DC
Relay Output
- 3 Relays (Alarm 1, Alarm 2, & Fault)
Repeatability
- ± 3 % of Full Scale - for 0 to 50 % LEL
- ± 5 % of Full Scale - for 50 to 100 % Lower Explosive Limit (LEL)
Response Time
- T90 < 30 seconds
Sensor, Probe Type
- Non-Dispersive Infrared Optical (NDIR)
Zero Offset
- < 5 % Per Year - Zero Drift