CC28 DA Transmitter

With display and alarm for flammable gases


If your application requires combustible gases and vapours to be monitored in Ex zones, the CC28 DA transmitter is a reliable and economical solution. The CC28 DA uses analogue signals (4-20 mA) to provide measured values and status information. The values are also displayed directly on the device itself. In the event of an alarm, the CC28 DA's buzzer and red alarm LEDs are triggered to warn anyone in the vicinity. The special stack effect ensures very short response times of only a few seconds for fast warning of explosion hazards. In combination with GfG's reliable controllers, it can be installed in new gas detection systems or retrofitted into existing ones.

The CC28 DA uses catalytic combustion (CC) to detect combustible gases and vapours such as methane, propane and hydrogen. The current measured value is displayed on the 2.2-inch display, which will light up red in the event of an alarm. The long-life sensors make the CC28 DA an economical solution for detecting a wide range of combustible gases in the measuring ranges of 0 to 100 % LEL and 0 to 4 vol % (NH3). Integrated audible and visual alarms will save you the cost of additional explosion-proof alarm devices. Its automatic temperature compensation and the linearisation of measuring signals ensure high measuring accuracy.

Functional safety and device protection
The CC28 DA is ATEX certified for use in Ex Zone 1 and its hardware complies with the European Functional Safety Standard DIN EN 61508-2: 2011 (SIL). Its housing is protected against ingress of dust and water (protection class: IP64). An optional weatherproof housing provides additional protection.

Communication and service
Signals are transmitted via the analogue industry standard (4-20 mA). The transmitter indicates operating states using two status LEDs. Service and adjustments can be performed on site using only the very intuitive three buttons on the device (one-person adjustment). The pre-adjusted sensors use smart sensor technology and can thus be replaced very easily. The multicolour backlit display shows the current measured value, status notifications and the menu of the CC28 DA. Test gases for function tests can be inserted using a flow adapter.

Key features at a glance:


General information:

  • Measuring principle: catalytic combustion (CC)
  • For combustible gases and vapours
  • Short response time due to stack effect
  • 2.2 inch colour display, control buttons, alarm LEDs, alarm buzzer
  • Expected sensor lifetime: 5 years
  • Signal transmission: 4-20 mA
  • Protection class: IP64

Approvals / Certifications:

  • ATEX certification: II 2G Ex demb [ib] IIC T4 Gb
  • SIL 2/3 (hardware)

Optionally available:

  • RC2 operating unit, windshield, weatherproof housing, flow adapter

Detectable gases

LEL combustible gases
C2H2 Acetylene
C2H4 Ethylene
C2H6O Ethanol
C2H6 Ethane
C2H6O Dimethyl ether
C3H4 Propine
C3H6 Propene
C3H6O Acetone
C3H6O2 Methyl acetate
C3H8 Propane
C3H8O n-Propanol
C4H8O 2-Butanon (MEK)
C4H8O2 Ethyl acetate
C4H10 n-Butane
C4H10O n-Butanol
C5H12 Pentane (n)
C6H6 Benzene
C6H12 Cyclohexane
C6H12O Methyl isobutyl ketone (MIBK)
C6H14 n-Hexane
C7H8 Toluene
C7H16 n-Heptane
C8H18 Octane (n)
C9H20 n-Nonane
CH4 Methane
CH4O Methanol
CO Carbon monoxide
H2 Hydrogen
NH3 Ammonia
Other gases on request.

Downloads

Extensions and accessories

Remote calibration adapter


To facilitate the regular function check of transmitters
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Weatherproof housing


Weatherproof housing for various transmitters
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Test gases


Find an overview of our test gases here
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Accessories CC28


Find the complete list of accessories for the CC28 here
» download PDF

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