GfG Instrumentation 2226002 IR22 Series Fixed Transmitter, No Display, (Base Unit without Sensor), Modbus

Transmitter with infrared sensor for flammable gases and carbon dioxide

If you need to monitor carbon dioxide or flammable gases outside of Ex zones, the IR22 transmitter is a durable and economical solution. The IR22 transmits measured values and status notifications via digital (RS-485) signal. In combination with GfG's reliable controllers, it can be installed in new gas detection systems or retrofitted into existing ones.

The IR22 uses an infrared sensor (IR) to detect carbon dioxide and the combustible gases methane and propane. The long-life sensors make the IR22 an economical solution for detecting gases in measuring ranges such as 0 to 10,000 ppm, 0 to 100 LEL or 0 to 50 % by volume. Its automatic temperature compensation and the linearization of the measuring signals ensure high measuring accuracy.

Functional safety and device protection

The hardware of the IR22 complies with the European Standard for Functional Safety DIN EN 61508-2: 2011 (SIL). The housing is protected against the ingress of dust and water (protection class: IP54).

Communication and service

Signals are transmitted on the digital RS-485 interface (Modbus protocol). The IR22 uses two status LEDs to indicate its operating status. The RC22 remote control facilitates service and adjustments on site (one-person adjustment). Test gases for function tests can be inserted using a calibration adapter.

Features:

• Measuring principle: Infrared (IR)
• For carbon dioxide and flammable gases
• Expected sensor lifetime: > 5 years
• Signal transmission: RS-485
• Protection class: IP54
• No Sensor

Approvals / Certifications:

• SIL 1/2 (hardware)

For more information, please see Info Sheet and Full Specification