A new generation of intelligent Toxic Gas Detector, Model GQ-CE8900, which adopts the smart sensor technology and features a safety function automatically identifies and determines the remaining usage life of the sensor. This easy-to-use GQ-CE8900 also features the detection of different gas concentrations by simply replacing the sensor and re-calibrating accordingly. It also provides a real-time fault diagnosis to ensure safe and effective operations.
GQ-CE8900 can monitor toxic gases presence consistently and continuously in installation sites. This Toxic Gas Detector has a standard 4-20mA current output and three sets of Normally Open Contact relays for Warning/Alarm/Fault. These features make it easy for the detector to connect to various control units. In addition, there are dual redundant Modbus and HART communication interfaces for data transfer to PLC, DCS, PC, etc.
• Isolated safety barrier
• Event logging
• One person adjustment-free calibration
• 4-20 mA output
• Warning, Alarm and Fault Relays
• Sensor life indication
• Modbus and HART interface
Sensor Type : Electrochemical cell
Measuring Ranges : Ammonia 0-50, 0-100,0-500 ppm
Carbon Monoxide 0-100, 0-500 ppm
Chlorine 0-10, 0-20 ppm
Ethylene oxide 0-20 ppm
Hydrogen Chloride 0-20,0-30 ppm
Hydrogen Cyanide 0-20,0-30 ppm
Hydrogen Sulfide 0-20, 0-30, 0-50, 0-100 ppm
Oxygen 0-25% v/v
Ozone 0-1 ppm
Sulfur Dioxide 0-20 ppm
Note: Please consult Gasensor Technology Pte. Ltd. for other test gases and ranges.
Accuracy : ±2 ppm or ±5% of reading,whichever is greater for all gases, except +/- 5% of Full Scale for H2S (0-20 ppm)
±3% of FS for CO (0-500 ppm) , or ±5 ppm or ±5% of reading, whichever is greater for NH3, or ±1% v/v for O2.
Zero Drift : < 5% per year
Response Time : (with 100% FS gas applied)
CO, HCN T90 < 30 s H2S T90 < 25 s
O2 T90 < 15 s Cl2, NH3 T90 < 30 s
SO2 T90 < 20 s C2H4O T90 < 30 s
Electrical Classification : ATEX II 2G Ex db ib IIC T6 Gb IP66
( Tamb = – 40°C to + 70°C )
Warranty : One year (cell), two years (electronics).