Product features:
- Adopt original imported sensor
- Ultra low power 32 bit microprocessor,
- 4-20A and RS485 two signals output
- Modular design, replace easily, maintenance simple
- One group with power switching value output, another without switching value output (relay) High precision, good repeatability, stable signal, respond quickly,
- Connect with many controller system, such as PLC, DCS, computer and other, with the function of remote monitor and alarm, data logger and analysis
- Independent air chamber structure, sensor can be plugged out
- Temperature and humidity compensation, more accurate detection data
Technical parameters:
Detection Gas benzene
Detecting Range 0-20,50,100,500,1000,2000,5000ppm
Resolution 0.01ppm,0.1ppm,1ppm
Sampling Diffusion or pump-suction, circulation selectable
Precision ≤±3%F.S
Repeatability ≤±1% gas alarm wall-mounte N2d gas detector
Zero drift ≤±1%(F.S/year) fixed gas detector online gas detector
Sensor Type Electrochemical sensor
Sensor Life 2~3 years online gas leak detector, fixed type gas alarm, online N2 gas measuring device
Response Time (T90) ≤20s Fixed gas detector
Alarming mode Audible-visual alarm(Optional)
Operating Environment Temperature: -30℃~60℃ (Customized for special demands)
Humidity: ≤95%RH (non-condensing); if >90%RH, can add the filter
Pressure: 86kPa~106kPa
Working Voltage 24V DC(16~30VDC)
Output Signals (Standard)Three-wire system 4~20mA standard signals output, available for PLC, DCS, etc;
(Optional) Four-wire system RS485 digital signal output;
(Optional) Frequency signal 200~1000Hz output;
Two-level relay output:220VAC 0.5A, 5VDC 0.5A
Installation Means Wall mounted, Pipe type (Thread:M40*1.5 )
Material of Body Cast aluminum
Explosion-proof Index Ex d IIC T6
Protection Grade IP66
Electrical Interface 3/4″NPT(Female Screw),1/2″NPT(Female Screw)
Transmit Distance ≤2000m (If more than 2000m, can add the repeater.)
Dimension 210 mm×140 mm×92 mm(L×W×H)
Weight About 1.5Kg
Standards GB15322.1-2003,GB3836.1-2010,GB3836.2-2010,GB3836.4-2010
Warranty 12months
