CC33 Transmitter aluminum

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For more than 60 years, GfG has been committed to protecting people, industrial facilities and the environment by developing and manufacturing gas detection systems. With an extensive range of portable gas detectors and fixed gas detection systems, GfG can supply you with a selection of products for many applications and industries. Our scope also includes on-site service and advanced training courses.

 

What distinguishes us from other manufacturers

We are specialists for gas detection solutions, not generalists in safety. No one can be the best at everything, but if you focus on one thing, you can achieve excellence. We work hard to provide you with the best gas detection equipment available, so you can focus on your task without having to worry about the risks that gases can pose. Because of that we invest more heavily in research and development than any other company. Approximately 13% of our annual turnover is reinvested in basic research and the development of new sensors and devices.

 

A “never say no” approach

This includes finding solutions for customers whose requirements are not met by “off the shelf” products. We take pride in our longstanding cooperation with the Singapore Civil Defence Force (SCDF), for example. For many years now, they have put their trust in GfG’s portable devices, which we optimized to adapt to the Singaporean climate and fulfill the special requirements for integration into the SCDF communication network.

The CC33 uses catalytic combustion (CC; also heat tone or HT) to detect flammable gases and vapours such as methane, propane and hydrogen as well as ammonia. The long-life sensors make the 33 series transmitters an economical solution for detecting a wide range of combustible gases in the measuring ranges 0 to 100 % LEL and 0 to 4 % by volume (NH3). Automatic temperature compensation and linearisation of the measuring signals ensure high measuring accuracy. In the event of an alarm, two red LEDs light up and the display colour changes to red. The three optional relay outputs can be used to automatically control an explosion-proof buzzer, visual warnings such as flashing lights or the ventilation by alarm.

Communication and service
Signals are transmitted according to the analogue industrial standard (4-20 mA) or via the digital RS-485 interface (Modbus protocol). The transmitter indicates operating states via two status LEDs. In addition, two alarm and three relay LEDs are integrated. Service and adjustments are carried out on site via magnetic pen and three magnetic buttons behind 10 mm thick bullet-proof glass (one-man adjustment). The pre-adjusted sensors can be easily replaced thanks to the Smart Sensor technology. The multi-colour backlit display shows the current measured value, status messages and the menu of the CC33. Test gases can be added for function control with a calibration adapter. Alternatively, when mounted in a difficult-to-reach location, it is possible to use an optional remote calibration adapter without impairing the transmitter’s stack effect.

Explosion and device protection
The CC33 is approved for use up to Ex zone 1 and meets the requirements of ignition protection type “d” (flameproof enclosure). The epoxy-coated aluminium housing and Viton seals guarantee a long operating time even under the toughest conditions. The transmitter is protected against the ingress of dust and water according to IP54. If required, the protection class can be brought to IP67 by means of additional thread seals.

 

Key features at a glance:

General information:

  • Measuring principle: catalytic combustion (CC)
  • For flammable gases and vapors
  • Pressure-resistant encapsulated housing made of aluminum with bulletproof glass (10 mm)
  • 2.2-inch colour display
  • Expected sensor lifetime: 5 years
  • Signal transmission: 4-20 mA / RS-485
  • Protection class: IP67 (with thread sealing, otherwise IP54)

Approvals / Certifications:

  • ATEX certification: II 2G Ex db IIC T6 Gb
    (II 2G Ex db ib IIC T4/T6 Gb with buzzer)

Optionally available:

  • Three relay outputs, magnetic rod, windscreen, flow adapter, remote calibration adapter, buzzer, threaded plug, cable gland

Would you like to know more?

Our team can help you with any product information, quotes, or any general questions you may have about the product.

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