GRI-9106-C-EX Smart Fixed combustible gas detection alarm I. Product Overview GRI-9106-C-EX is the Division I developed a high-performance intelligent combustible gas detection alarm, high-performance, low-power consumption of microprocessors ensure the performance and stability of the product, real-time monitoring of the concentration of combustible gases. Mainly used in petrochemical, metallurgy, mining, fire, gas, environmental protection, electricity, telecommunications, paper making, printing and dyeing, food reserves, urban water supply, sewage treatment, food, brewing, research, education, defense and other places. Second, while the main features RS485 and 4 ~ 20mA (three-wire) digital / analog signals and switch output three signals. Segment type LCD large screen real-time display of gas concentration. Optional gas concentration units (eg ppm, mg / m3), there is the instrument status, fault and communication error prompts. You can set high and low alarm points, two sound and light alarms. Two relay can control peripheral devices (such as fans and sound and light alarms) action. Circular die-cast stainless steel housing for use at offshore platforms, as well as high temperature, humidity and other harsh environments. With good sealing, corrosion resistance, explosion and anti EMI, RFI function. I produced with GRI-9800 series supporting the use of the alarm host. European design standards. Third, performance indicators and parameters to adapt to the gas combustible gas 9-24VDC input power consumption current catalytic combustion sensor type 20-200mA sampling form diffusion type, ducted Alarm error ≤ ± 10% detection alarm setpoint range 0-100% LEL Humidity 0-85% RH (non-condensing) Resolution 0.1% LEL preheating time 1 Min Response time T90 <30S signal output 4-20mA, RS485 Display LCD display real-time concentration; light-emitting diode, buzzer alarm equipment service life of 10 years (air) Operating temperature -10 ℃ -40 ℃ contact capacity 0.5A / 125VAC or 1A / 30VDC pressure range 860-1060hpa Repeatability ≤ ± 2% FS Operating Current 20-200mA Zero drift ≤ ± 2% FS / 6h span drift ≤ ± 5% FS / 6h Dimensions See dimensional drawings sensor life see sensor data transmission distance 4 ~ 20mA≤100m, RS485≤1000m shell color yellow weight <2000g proof grade Exd Ⅱ CT6 ≥RVVP9 * 0.3 mm2 cable protection class IP65 electrical interface (thread) M20 * P1.5 power ≤3W cast aluminum housing material