Product Name: carbon dioxide detection alarm Model: HCK-600B-CO2 I. Description: HCK-600B-CO2 carbon dioxide detector for a variety of industrial environments and the special circumstances of the carbon dioxide concentration in a continuous line detection equipment imported infrared sensor and microcontroller technology, with signal stability, high accuracy, good repeatability, explosion-proof wiring method is applicable to all kinds of dangerous places. Widely used in petrochemical, industrial production, refining forging, electricity, coal, engineering, environmental monitoring, wastewater treatment, pharmaceutical, household and environmental protection, livestock breeding, greenhouse cultivation, logistics, wine fermentation, agricultural production, fire, gas, building construction, municipal enterprises, school laboratories, research centers and other industries. Second, product characteristics: 1, using the world imports of high-precision sensors and micro-control integration technology, fast response, high accuracy, stability and repeatability 2, the instrument has: 4-20mA / RS485 signal output, relay output ( exhaust fan or drive external devices such as solenoid valves), data recovery, data storage, wireless transmission and other functions (optional one or more) 3, the instrument is compatible with various control alarms, PLC, DCS and other control systems can be achieved remotely monitoring, remote alarm, computer data storage, analysis and other functions. 4, 24 hours continuous monitoring of the environment or pipeline gas concentration 5, live with a backlit LCD screen, multi-parameter display, intuitive display of gas concentration, type, unit, working conditions, etc. 6, independent air chamber, replace the sensor without on-site calibration, the sensor automatically identify key parameters 7, the temperature of the whole range of digital automatic tracking compensation, to ensure measurement accuracy 8, all software calibration, the more reliable measure to ensure the accuracy and linearity, and has a data recovery Third, the technical parameters:? Detection gases: carbon dioxide (CO2) detection principle:? IR theory, testing methods for the diffusion or pump priming, long-term continuous operation Installation:? wall, ducted (thread size: M45X1.5mm), flow-through, the pump-priming optional ? measuring range: 0 ~ 500,1000,2000,5000,10000,20000ppm, 50000ppm, 0-20% Vol, 50% Vol, 100% Vol selectable resolution: 1ppm (0 ~ 50000ppm); 0.01ppm (0? ~ 100% VOL) ??Accuracy:? ≤ ± 3% (the actual concentration) Repeatability:? ≤ ± 1% Zero drift:? ≤ ± 1% (FS / years) Response time:? ≤20 seconds (T90) recovery time? : ≤20 seconds Output signal:? User according to actual requirements, as far as can transport 2000 meters ① three-wire 4-20mA current signal output can be connected to a variety of alarm control equipment, PLC, DCS and other control systems ② RS -485 digital signal output, with RS232 adapter can store data on a computer (optional) ③ two relay outputs: one group active DC24V output, a set of passive alarm signal output signal output ④: live sound and light alarm, Alarm sound: 90% RH, can be equipped with filter) Working pressure:? ≤200Kpa Dimensions:? 185 × 145 × 90mm (L × W × H) Weight:? 1.6Kg