Fixed Methane (CH4) Gas Detector, 0 to 100% LEL

Low price methane gas detector for sale. Measurement range 0-100% LEL, supports remote control with output signal 4-20mA or RS485. The CH₄ gas detector has fixed design, which is used in methane concentration detecting and monitoring, sound and light alarm, real-time display, small size, lightweight, convenient mounting.

Features

• Methane gas detector adopts high precision sensor for accurate gas leak detection.
• Methane gas detector is equipped with 3-wire system 4-20mA analog output, relay output, RS485 output (optional).
• The CH₄ gas detector is compatible with various controlled alarms, PLC, DCS and other control system, and can be remote monitored.
• Explosion-proof design, fast, relaible and stable.
• Infrared ray controller can remote control the alarm point settings, zero calibration, and address modification.
• Two-stage alarm with sound and light, and the alarm point is settable.
• The methane gas detector has self-calibration function, and three standard keys will be used to realize on-site maintenance.
• The CH₄ gas detector can output one or two on-off signals, can drive ventilator, solenoid valve or other external devices.

Specification

Note: The output signal 4-20mA and RS485 CANNOT be used at the same time.

Fixed Methane (CH₄) Gas Detector Dimension (Unit: mm)

***Other Common Gases and Ranges Available for Fixed Gas Detectors

Note: Some common gases and the measuring ranges are listed in the above table. For more information, please feel free to contact us.

Tips: How to improve the service life of methane gas detector?

• The methane gas detector should be calibrated and tested regularly.
  When replacing the probe of CH₄ gas detector, in addition to a certain sensor activation time, the instrument must be recalibrated. In addition, before using the methane gas detector, use the standard gas for response detection to ensure protection of the instrument.
• Pay attention to the interference between other sensors and the methane gas detector.
  Although a composite gas detector can detect multiple gases at the same time, the fixed gas detector is not suitable for any combination of toxic and harmful gases. Generally speaking, each gas detector corresponds to a specific detection gas, but any gas detector cannot be absolutely effective.
• Pay attention to the life of methane gas detector.
  CH₄ gas detector has a certain service life. Generally, in portable gas detectors, LEL sensors have a longer life span and can generally be used for about three years. The life of the photoionization detector is four years or longer. The lifetime of electrochemical specific gas detectors is relatively short, generally one to two years. The life span of the oxygen sensor is short, about a year or so.