1. Product Overview
YGM450Ex is an intrinsically safe and highly reliable industrial temperature and humidity transmitter. It can be used in flammable and explosive hazardous areas, in accordance with GB3836.4-2010 Intrinsic Safety Specifications, and can work in the most dangerous zone 0. The shell and probe can be installed in flammable and explosive hazardous areas. Its electrical connection adopts standard two-wire system signal, which can supply power to the transmitter through intrinsically safe distribution isolator or zener type safety barrier. The signal output is 4~20mA analog signal with strong anti-interference capability; The shell and probe are made of stainless steel, and the protection grade reaches IP65, which can work in harsh environments.
Main features:
(1) Can work in Zone 0
(2) EMC standards meet the requirements of industrial environment
(3) The shell and probe are made of stainless steel
(4) Strong reliability and easy maintenance
Main applications:
(1) Petrochemical
(2) Power industry
(3) Automobile industry
(4) Flammable and explosive storage room
2. Main technical indicators
Measuring range: temperature: 0~+50 ℃, -- 20~+80 ℃, 0~+100 ℃
Humidity: 0~100% RH
Precision: temperature: ± 0.3 ℃ (at 20 ℃)
Humidity: ± 3.0% RH (11 ～ 89% at 20 ℃)
Signal output: 4 ～ 20mA (two-wire system), load resistance RL ≤ 500 Ω
Response time: T90 ≤ 3s
Power supply: 20~28VDC
Electrical connection: M16 × 1.5, cable diameter: 4-8mm
Enclosure protection grade: IP65
Explosion proof sign: Ex ia IIC T4 Ga
Intrinsic safety parameters: temperature: Ui=28V, Ii=93mA, Pi-651mW, Ci=0.06uF, Li=0mH;
Humidity: Ui=28V, Ii=93mA, Pi-651mW, Ci=0.06uF, Li=0mH;
Working temperature: transmitter: - 10~+50 ℃
Storage environment: temperature - 20~+60 ℃, humidity 0~90%, no condensation
3. Circuit wiring