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Detection Method: Pump suction type
Detection Principle: Hot-wire semiconductor type
Target Gas: Flammable gases (e.g., hydrogen, methane), etc.
Representative Detection Range: 0 to 2000 ppm
Alarm Setting Value: Depending on the specifications
Alarm Accuracy: Flammable gases: ±25% of the alarm setting under the same conditions; Toxic gases: ±30% of the alarm setting under the same conditions.
Delayed Warning: Flammable gases: Within 30 seconds with gas at 1.6 times the alarm setting concentration; Toxic gases: Within 60 seconds with gas at 1.6 times the alarm setting concentration.
Alarm Display: Gas alarm: Red LED light flashes; Trouble alarm: Yellow LED light flashes (Sensor disconnection, sensor zero drop, power supply voltage abnormality, etc.)
External Output: Gas concentration analog signal: DC 4-20mA (common to the negative terminal of the power supply); Gas alarm contact or fault contact *1 : 1a dry contact / automatic reset (rated load AC250V 0.5A or DC30V 0.5A (resistive load))
Gas Concentration Display: LED display: 4-digit digital display
How To Operate: Four magnetic switches
Explosion-Proof Structure: Ex db IIB+H2 T4 Gb※2
Protection Class: IP65
Compatible Cables: Cable outer diameter: Ø11-15mm; 6-core shielded cable: CVV- S1.25mm² or 2.0mm²
Operating Temperature And Humidity Range *3: Temperature: -10~+50℃ Humidity: 10~90%RH (0~50℃)
Power Supply Used: DC24V (±20%)
Power Consumption: Max 7.5W
Size: W133 x H289 x D132mm (excluding protrusions)
Weight: Approximately 5.2kg
Option: Flow rate drop detection function (alarm when flow rate is below 0.3 L/min)
*1 Gas alarm contacts are standard. Specifications are required if using them as fault contacts.
*2 ATEX explosion-proof certification is obtained as an international explosion-proof standard (specifications required).
*3 No rapid changes in temperature and humidity, and no condensation.
Features
With concentration and alarm display functions, the gas concentration and alarm status can be seen at a glance on-site, helping to ensure the safety of workers.
During maintenance, the output can be checked at the detection unit, and calibration can be performed by one person, leading to cost reductions.
The adjustment system uses a magnetic stick, making maintenance easy.
Flow rate drop detection function (optional).
Waterproof/dustproof structure
Hydrogen explosion-proof specifications
