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Methane Detector Transmitter E2638-CH4

Methane detector-transmitter is suitable for applications such as underground parking, boiler rooms, kitchens and other areas where it is possible to accumulate potentially explosive concentration of methane.

Methane Detector-Transmitter model VAC-E2638-CH4:

  1. VAC-E2638-CH4 is a long-lasting metal-oxide gas detector.
  2. Range of measurement for this methane detector-transmitter is 0-100% LEL (0-5% vol).
  3. Resolution of measurement for VAC-E2638-CH4 is 0.1% LEL (50 ppm).
  4. VAC-E2638-CH4 provides either fixed or remote sensor probe.
  5. It has 2 analogue outputs settable at 4-20 mA or 0-10 V with RS485 digital interface.
  6. It has 2 SPST relays.

Specifications of Methane detector-transmitter model VAC-E2638-CH4:

  1. Calibration of VAC-E2638-CH4 is Methane.
  2. Sensor type used is Metal-oxide semiconductor. Catalytic bead (pellistor) sensor is available as an option.
  3. The methane detector-transmitter model VAC-E2638-CH4 sampling method is diffusion.
  4. The typical detection ranges for MOS and the catalytic sensor is 0-100% LEL.
  5. Resolution for MOS sensor is 0.1% LEL while for the catalytic sensor is 1% LEL.
  6. Response time T90 for MOS sensor is ~60 seconds while for the catalytic sensor is 8 seconds.
  7. Sensor lifetime of this methane detector-transmitter model VAC-E2638-CH4 with MOS sensor is more than 5 years while for the catalytic sensor is more than 2 years.
  8. Maintenance interval for MOS sensor is 12 months while for the catalytic sensor is 3-6 months.
  9. Operating conditions for the MOS sensor is -30 to +70 degrees Celsius while for the catalytic sensor is -20 to +60 degrees Celsius at less than 95% relative humidity with 1 atmospheric pressure ±10%, non-ATEX rated spaces, and normal ambient oxygen level. Extreme mechanical shock, vibrations, or EMI should be avoided. Avoid exposure to products containing silicone or corrosive gases.
  10. The signal is updated every 1 second.
  11. Self-diagnostics with full functionality check at start-up.
  12. Warm-up time is less than or equal to 1 minute.
  13. The power supply of this methane detector-transmitter model VAC-E2638-CH4 is 11-30 VDC, 24 VAC or 90-265 VAC.
  14. The power consumption is less than 2 VA.
  15. VAC-E2638-CH4 has RS485 Modbus RTU digital interface.
  16. It has 2 analogue outputs settable at 4-20 mA or 0-10 V.
  17. The recommended output scale width for this methane detector-transmitter model VAC-E2638-CH4 is 20-100% of the range with more than 10 x resolution in any case.
  18. It has a grey ABS plastic enclosure with an IP65 safety rating.
  19. The dimensions of this methane detector-transmitter model VAC-E2638-CH4 is H90 × W145 × D50 millimetres (housing only). If with cable glands, the height is 140 millimetres.
  20. It can be operated at industrial indoor and outdoor areas without aggressive gases.

Additional options

  1. It has an IP65 secured remote sensor probe, shielded cable. The cable’s default length is 3.0 metres.

Relay outputs

  1. It has 2 SPST relays (closing contact) with 250 VAC or 30 VDC at 5 A max current.
  2. The default warning set-points of this methane detector-transmitter model VAC-E2638-CH4 at LOW is set at 20% LEL, release 16% LEL.
  3. The default warning set-points of this methane detector-transmitter model VAC-E2638-CH4 at HIGH is set at 50% LEL, release 40% LEL.
  4. Red and green LEDs visual alarm are available.
  5. There is an 85 dB acoustic buzzer alarm available.

LCD indicator

  1. Operating temperature of the LCD indicator is 0 to +50 degrees Celsius.
  2. The display dimensions of this methane detector-transmitter model VAC-E2638-CH4 LCD indicator is 72 × 36 millimetres.
  3. VAC-E2638-CH4 LCD indicator has 3.5 7-segment number of digits.
  4. The character height in the LCD indicator is 14 millimetres.
  5. Methane detector-transmitter model VAC-E2638-CH4 LCD indicator has a backlight feature.

NOTE: For a version with LCD, only one analogue output is available.

We supply methane detector-transmitter across the world covering Europe, USA, Latin America, Asia, Australia, New Zealand, Canada etc.

In the Middle East, we supply methane detector-transmitter in the United Arab Emirates, Kingdom of Saudi Arabia, Oman, Qatar, Bahrain, Iraq, Lebanon, Egypt, Jordan, Libya, Tunisia etc.

In Africa, we supply methane detector-transmitter in countries including Kenya, Algeria, Tanzania, Djibouti, Chad, Ghana, Rwanda, Uganda, Nigeria, Ethiopia, Morocco, Angola, South Africa etc.

Also, we supply methane detector-transmitter to India, Bangladesh, Pakistan, Afghanistan, Kazakhstan, Srilanka, Maldives and Cyprus.