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Transmitter CC28 D

Product catalog summary

Overview: The CC28 D Transmitter is designed for monitoring flammable gases and vapors in hazardous areas, specifically Ex zones. It is a reliable and economical solution when used with GfG's controllers, offering quick response times for gases like methane and propane.

Specifications: The transmitter is ATEX certified with ignition protection types 'd' (flameproof enclosure) and 'e' (increased safety), suitable for Ex zone 1. It complies with the European Functional Safety Standard DIN EN 61508-2: 2011. The detection principle is catalytic combustion, with detection ranges from 0 to 100% LEL and 0 to 4 vol% for ammonia. The expected sensor life is 5 years, with a response time of t₉₀ ≤ 9 seconds.

Communication and Service: Signal transmission follows the 4–20 mA industry standard. The Smart Sensor technology allows for easy sensor replacement, and a calibration adapter facilitates test gas addition. An optional RC2 remote control is available for difficult-to-access installations.

Display and Interface: The device features a 2.2-inch LC display and three pushbuttons, showing measured values, faults, or alarms. Operating parameters can be accessed via the pushbutton interface.

Reliability and Cost Efficiency: The stack effect ensures rapid detection, allowing time for countermeasures. Temperature compensation enhances measurement accuracy, while low maintenance and long sensor life minimize operating costs. Automatic shutdown at 112% LEL reduces sensor wear.

Variants: The CC28 is available in several versions: the basic version, the CC28 D with display, and the CC28 DA with display, LED warning lights, and alarm buzzer. All versions are compatible with GfG's controllers for monitoring various combustible gases.

Technical Data: Operating temperature ranges from -20 to +50 ºC in Ex zones and -25 to +55 ºC outside Ex zones. Humidity tolerance is 5 to 90% r.h., and air pressure ranges from 80 to 110 kPa in Ex zones. The housing is plastic and antistatic, with an IP64 protection class.

Approvals and Certifications: The device holds ATEX labeling and EC Type Examination Certificates for electric explosion protection and measuring function. It meets EMC standards DIN EN 50270: 2015, with Type class I radio shielding and Type class II interference resistance.

Gas Detection Capability: The transmitter can detect a wide range of gases, including acetone, acetylene, ammonia, carbon monoxide, diethyl ether, ethane, ethanol, ethyl acetate, ethylene, hexane, hydrogen, isopropanol, methane, methanol, n-nonane, n-butane/isobutane, natural gas, propane, propyne, propylene, and toluole.

Catalog excerpts

Fixed gas detection systems Monitoring flammable gases in Ex zones

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Monitoring flammable gases in Ex zones For monitoring combustible gases and vapors in hazardous areas, the CC28 D transmitter with display in combination with GfG’s proven controllers is a reliable and economical solution. Short response times (t₉₀ ≤ 9 s; depending on gas type and sensor) allow fast warning of gases such as methane or propane. The design is ATEX certified. With ignition protection types “d” (flameproof enclosure) and “e” (increased safety), safe use in Ex zone 1 is possible. In addition, the CC28 D hardware complies with the European Functional Safety Standard DIN EN 61508-2:...

Open the catalog to page 2

Transmitter CC28 D

Transmitter CC28 D

Catalog excerpts

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