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IR-640 Carbon Dioxide Sensor

Brand: Detcon Inc

Detcon Model IR-640 sensors are non-intrusive “Smart” sensors designed to detect and monitor Carbon Dioxide. 

Available ranges of detection are 0-0.3%, 0-1%, 0-3%, and 0-5% by volume. 

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.

1 - 8 of 8 Part Numbers
966-404520-001
966-404520-001
  • Junction Box - Aluminum
  • Measuring Range - 1%
966-404520-003
966-404520-003
  • Junction Box - Aluminum
  • Measuring Range - 3%
966-404520-005
966-404520-005
  • Junction Box - Aluminum
  • Measuring Range - 5%
966-404520-0X3
966-404520-0X3
  • Junction Box - Aluminum
  • Measuring Range - 0.3%
966-40542B-001
966-40542B-001
  • Junction Box - 316 Stainless Steel
  • Measuring Range - 1%
966-40542B-003
966-40542B-003
  • Junction Box - 316 Stainless Steel
  • Measuring Range - 3%
966-40542B-005
966-40542B-005
  • Junction Box - 316 Stainless Steel
  • Measuring Range - 5%
966-40542B-0X3
966-40542B-0X3
  • Junction Box - 316 Stainless Steel
  • Measuring Range - 0.3%
1 - 8 of 8 Part Numbers

Specifications

Brand

Accuracy

  • ± 5 % of Full Scale

Approvals & Certifications

  • CSA Class I, Div. 1, Groups B, C, D
  • NRTL 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 0.3 % by Volume
  • 0 to 1 % by Volume
  • 0 to 3 % by Volume
  • 0 to 5 % by Volume

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

  • ± 5 % of Full Scale

Response Time

  • T50 < 15 seconds
  • T90 < 40 seconds

Sensor, Probe Type

  • Non-Dispersive Infrared Optical (NDIR) - Sensor

Zero Offset

  • < 0.05 % Per Year - Zero Drift

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