GfG Instrumentation 3300-38-014 CC33 Series Fixed Transmitter with SS Housing, Propylene, RS 485, with Relay, 0-100% LEL Range

For flammable gases and vapors in stainless steel enclosure with ignition protection type "d"

If flammable gases and vapors need to be monitored safely in Ex zones under demanding conditions such as in the food industry, the CC33 transmitter with its unpainted stainless steel housing is an extremely robust and reliable solution. The CC33 transmits measured values and status indications on digital (RS-485) signal. The current measured gas concentration is also shown on its LC display. The special stack effect ensures very short response times of only a few seconds for a quick warning of explosion hazards. Three relay outputs provide additional alarm options. In combination with GfG's reliable controllers, it can be installed in new gas detection systems or retrofitted into existing ones.

The CC33 uses catalytic combustion (CC) to detect flammable gases and vapors such as methane, propane and hydrogen as well as ammonia. Their long-life sensors make 33 series transmitters an economical solution for detecting a wide range of combustible gases in the measuring range 0-100% LEL. Its automatic temperature compensation and the linearisation of the measuring signals ensure high measuring accuracy. In the event of an alarm, two red LEDs light up and the display color changes to red. The three relay outputs can be used to automatically trigger an explosion-proof buzzer, visual warnings such as flashing lights or the ventilation in case of an alarm.

Communication and service

Signals are transmitted on the digital RS-485 interface (Modbus protocol). The CC33 is also able to utilize ACDC technology, which enables it to transmit digital data on analog, three-wire lines in systems using an ACDC-capable controller. It uses two status LEDs to indicate its operating status and also features two additional alarm LEDs and three relay LEDs. Service and adjustments can be carried out on site with a magnetic pen and three magnetic buttons behind 15 mm thick bullet-proof glass (one-person adjustment). The pre-adjusted sensors can be easily replaced thanks to Smart Sensor technology. The multi-color backlit display shows the current measured value, status messages and the CC33's menu. Test gases for function tests can be inserted using a calibration adapter. Alternatively, when the device is mounted in a difficult-to-reach location, an optional remote calibration adapter can be used without impairing the transmitter's stack effect. 

Explosion and equipment protection

The CC33 is approved for use up to Ex zone 1 and meets the requirements of ignition protection type "d" (flameproof enclosure). The unpainted stainless steel housing and Viton seals guarantee a long operating time even in the toughest conditions. The transmitter is protected against the ingress of dust and water according to IP54. If required, the protection class can be raised to IP67 with additional thread seals.

Features:

• Measuring principle: catalytic combustion (CC)
• Measuring gas, range and sensor: Propylene, 0-100% LEL, MK 208-3
• Pressure-resistant encapsulated housing made of stainless steel with bulletproof glass (15 mm)
• 2.2-inch color display
• Expected sensor lifetime: 5 years
• Signal transmission: 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)

For more information, please see Data Sheet and Manual