The new generation AEC2232dX series biogas leak detector can display the concentration of combustible gases or vapors within the lower explosive limit in the air on-site (%LEL), and outputs a 4-20mA standard signal. At the same time, it can output three sets of relay contact signals (fault signal, high/low limit alarm signal), which can be directly connected to DCS and other data acquisition systems or secondary instruments for audible and visual alarms and linked output to avoid the occurrence of serious accidents. This series of detectors also has the following features: high-brightness LED display; low/high limit alarm concentration is adjustable; when using button calibration, the calibration value can be set according to the calibration gas concentration; on-site calibration can also be performed using a magnetic rod, which does not require opening the cover during calibration, making operation more convenient. This series of detectors adopts a catalytic combustion sensor and single-chip microcomputer digital processing. The product has the advantages of high detection sensitivity, stable performance, good anti-poisoning ability, and low power consumption. The biogas leak detector is widely suitable for petroleum, chemical, pharmaceutical, steel, special industrial plant fields and other places where combustible gases exist. Main Technical Indicators Detection Principle: Catalytic Combustion Sampling Method: Diffusion Type Detection Gas: Natural gas, liquefied petroleum gas, alcohol, gasoline and other combustible gases or vapors Range: 0-100%LEL Indication Error: ≤±5%F.S Working Voltage: DC24V±6V Power Consumption: ≤3W (DC24V) Output Signal: ① Three-wire 4-20mA standard signal output (Maximum load resistance: <250Ω (18-20VDC), <500Ω (20-30VDC)) ② Three-wire relay output: low limit/high limit alarm signal, fault signal, capacity: 1A/24VDC Alarm Concentration: Low limit defaults to 25%LEL (adjustable from 5%LEL to 40%LEL), high limit defaults to 50%LEL (adjustable from 10%LEL to 100%LEL) Display: 4-digit LED Explosion-proof Connection Thread: G3/4" internal thread Operating Temperature: -40℃ to +70℃ Humidity Range: ≤93%RH, non-condensing Explosion-proof Grade: ExdⅡCT6 Protection Grade: IP66 Installation Method: Pipe clamping, wall mounting, ceiling mounting (with mounting base plate)