Description Overview GAOTek hydrogen bromide sensor gas leak detector is a high performance intelligent infrared gas detection alarm which developed by our company, high performance, supply couples of types of gas detection. Low power microprocessor to ensure product performance and stability, real-time monitoring of the concentration of infrared gas. Applicated in petroleum chemical industry, metallurgy, mining, fire, gas, environmental protection, electric power, communication, papermaking, printing and dyeing, food reserves, city water supply, sewage treatment, food, brewing, research, education, national defense and other places. Features Three kinds of signal output, RS485 and 4 to 20mA (three wire) digital / analog signal and switch at the same time. Big screen segment type LCD real-time display gas concentration. Gas concentration unit optional (such as ppm, mg/m3), it has the instrument status, fault and communication abnormality prompt function. It can be set high and low alarm point, two level sound and light alarm. Two relays to control peripheral devices (such as the action of machine and sound and light alarm). Round casting stainless steel housing is suitable for offshore platforms, as well as high temperature, high humidity and other harsh environments. Good sealing, anti-corrosion, explosion-proof and anti EMI, RFI function. Supporting use of our company’s GRI-9800 series alarm host. European design standards. Technical Specifications Measured Gas Combustible gas or Toxic gas or Oxygen or VOC Sensor Type Catalytic combustion or electro-chemical or PID Sampling Way Diffusion, Pump pipeline Detection Range 0 ppm to 2000 ppm or customized Accuracy 0.01 or 1 PPM Response Time T90 ≤ 30 S (most) Display LCD, time concentration, light emitting diode, buzzer alarm Pressure Range 860 hpa to 1060 hpa Operating Current 20 mA to 200 mA Span Drift ≤ ± 5 % FS per 6 h Power Consumption ≤ 2.0 W Input Power 12 VDC to 24 VDC Alarm Error ≤ ± 10% alarm set value Work Humidity 0 % RH to 95 % RH (no coagulation) Preheating Time 1 Min Signal Output 4 mA to 20 mA Equipment Service Life 10 years (in the air) Sensor Life See date of sensor Capacity 0.5A or 125 VAC or 1A or 30 VDC Repeat ≤ ± 2 % FS Zero Drift ≤ ± 2 % FS/6h Transmission Distance 4 to 20 mA ≤ 100 m, RS485 ≤ 1000 m Cable ≥ RVVP9 Material Cast aluminum or 316 stainless steels Dimension 7.67 in × 7.00 in × 3.54 in (195 mm x 178 mm x 90 mm) Net Weight 2.64 lb (1.2 kg) Operating Temperature -40 °F to 158 °F (-40 °C to 70 °C)
