Nitrogen dioxide NO2 gas concentration detector, nitrogen dioxide NO2 gas leak alarm, ..

Nitrogen dioxide NO2 gas concentration detector, nitrogen dioxide NO2 gas leak alarm, nitrogen dioxide, NO2 gas transmitter Features: ■ site gas concentration LCD; ■ high-precision, long-life electrochemical, infrared sensors imports; ■ Powerful software settings support to meet any range and all gas detection needs of customers between 1.0000-99999; ■ via the controller or remote control, without opening the cover of the detector alarm point adjustment, zero adjustment and calibration target; ■ Suitable for dozens of gas detection, can choose to display the name of dozens of common gases; ■ Gas Unit Name PPM,% LEL,% VOL, can be arbitrarily set; ■ in the whole range on any setting upper and lower alarm point; ■ RS485 communication bus wiring is simple and convenient; ■ 4 ~ 20mA current output signal can be corrected, full isolation, electromagnetic interference capability; ■ 2 normally open dry contact output for solenoid valves control the fan or AC contactors device; ■ compact power supply design, superb mine design, pure SMT component placement process, making the product performance and stability; ■ ingenious structural design, the detector wiring exemption screws, installation is very simple; technical parameters: Operating voltage: 12 -30VDC; Detection of gas: air, nitrogen dioxide; Detection principle: Electrochemical; Detection range: 0-20ppm, or specified range; resolution: 0.1ppm, 1ppm; accuracy: ± 3% FS; Repeatability: ± 1.0 %; linearity error: ± 1.0%; Display: LCD; Response time: ≤30 seconds; Recovery time: ≤40 seconds; Maximum power consumption: 1.5W; output signal: 4-20mA current signal (optional); telecommunications mode: RS485 bus (optional); contact output: H, L passive normally open contact, 24VDC / 1A (optional); Weight: about 1.3Kg; Operating temperature: 0 ℃ ~ + 55 ℃; (special requirements According required); Relative humidity: 10% ~ 95% RH (non-condensing);