Detcon Model IR-642 Detectors are non-intrusive "smart" sensors designed to detect and monitor carbon dioxide.
The available detection ranges are 0-10%, 0-25%, 0-50% and 0-100% by volume.
The sensor assembly consists of a miniature infrared optical sensor in a stainless steel housing that includes a splash guard with integral cal port, a pluggable control emitter circuit, a basic connection board and an explosion-proof enclosure.
CSA-NRTL Listed: Class I, Division 1, Groups B, C and D
Compatible with PLCs, SCADA, DCS, via 4-20 mA, and / or RS-485, and / or alarm relays
Sensor status and parameters accessible via RS-485 (Modbus ™)
Standard programmable relays (two alarms plus fault)
Simple Menu Driven Calibration - takes less than 3 minutes
Backlit LCD and LED indicators for FAULT and CAL status
Field replaceable miniature optical sensor
Pluggable field replaceable transmitter
Low energy consumption
Expected life of the 5 year sensor
|
Sensor type |
Non-dispersive infrared optics (NDIR) |
|
Measuring range |
0-10% / 0-25% / 0-50% / 0-100% by volume |
|
Precision / Repeatability |
± 5% FS |
|
Response / compensation time |
T50 <15 seconds T90 <40 seconds |
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Zero Drift |
<0,05% per year |
|
Operating temperature range |
-40 ° F to + 167 ° F; -40 ° C to + 75 ° C |
|
Operating humidity range |
0-99% RH without condensation |
|
outputs |
Linear 4-20 mA DC RS-485 Modbus ™ 3 relays (alarm 1, alarm 2, & fault) Classified contacts 5 amps |
|
Input voltage |
22,5-28 VDC |
|
Power Consumption |
<3 watts @ 24 VCC |
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Electrical classification |
Anti-explosion Classe I, Division 1, Groupes B, C, D |
|
Protection against penetration |
NEMA 4X, IP66 |
|
Security approvals |
CSA / NRTL (US OSHA certified) |
|
Sensor life / warranty |
Sensor: 5 year pro-rated warranty Transmitter: 2 years warranty |
