GfG 2901-21-006, IR29 e (Increased Safety), Fixed Transmitter, Instrument - IR 29 Transmitter, no display, 4-20 mA, with pressure & humidity compensation, IP67 , Acetylene (C2H2) , 0 - 100% LEL

IR29 e (Increased Safety), Fixed Transmitter, Instrument - IR 29 Transmitter, no display, 4-20 mA, with pressure & humidity compensation, IP67 , Acetylene (C2H2) , 0 - 100% LEL, GfG 2901-21-006

IR29 Series Fixed Transmitters by GfG Instrumentation

IR29 Transmitter - Ex-proof LEL monitoring.

The IR29 Transmitter is an Ex-proof IR transmitter for combustible gases. If you need to monitor combustible gases and vapors in Ex zones, the IR29 transmitter is a reliable and robust solution. It uses an analog (4-20 mA) signal to transmit measured values and status information. Gases are monitored either on-site by diffusion or via unpressurized gas supply with a flow adapter. In combination with GfG's reliable controllers, the IR29 can be installed in new gas detection systems or retrofitted into existing ones.

The IR29 uses non-dispersive infrared (NDIR) sensor technology to detect combustible gases and vapors. For selective measurement results without false alarms, our patented 4-beam and 4-wavelength technology with gold-plated mirror optics is used, which dispenses with beam splitters altogether. The infrared sensors used also enable measurements above the lower explosion limit (LEL), do not require oxygen and are insensitive to sensor poisons. The long-life sensors make the IR29 a permanently reliable solution for detecting a wide range of combustible gases and vapors in the 0 to 100 % LEL measuring range. Automatic temperature compensation and linearization of the measurement signals ensure high measurement accuracy.

Communication and service

Signal transmission is according to the 4-20 mA industry standard. Operating states are indicated by the transmitter via two status LEDs. Service and adjustments are carried out on site using the optional RC2 remote control (one-person adjustment). Self-monitoring of the IR29 increases device safety between maintenance intervals. Measured values and events are automatically recorded by the transmitter in an internal ring buffer. Test gases can be added for function control and adjustment with a calibration adapter.

Safety and instrument protection

The IR29 is ATEX-certified for use in Ex zone 1. It complies with the increased safety "e" and encapsulation "m" standards. The housing made of V4A stainless steel and poly-carbonate is protected against ingress of dust and water (protection class: IP67). Accessories include a guard plate and dust filter.

Key features and General Information at a glance:

• Measuring principle: Infrared (IR).
• Measuring principle: infrared (IR).
• For combustible gases and vapors.
• Not susceptible to sensor poisons.
• Expected sensor lifetime: 6 years.
• Signal transmission: 4-20 mA.
• Protection class: IP67.
• Integrated data logger.

Approvals / Certifications:

ATEX certification: II 2G Ex eb mb ib [ib] IIC T4 Gb.

Optionally available:

Pressure and humidity sensors, ex-proof control unit RC2, impact protection, flow adapter, calibration adapter, protection plate, dust filter, weatherproof housing, flow adapter.

Detectable gases:

LEL combustible gases.

• C₂H₂ Acetylene.
• C₂H₄ Ethylene.
• C₂H₆O Ethanol.
• C₃H₈ Propane.
• C₃H₈O n-Propanol.
• C₄H₁₀ n-Butane.
• CH₄ Methane.
• Other gases on request.

HAZMAT Item: No

New: Yes

Type: 2901-21-006, IR29 e (Increased Safety) Fixed Transmitter, 0 - 100% LEL