Temperature and humidity sensors: CHD301C2-E

Function Description: TCP / IP bus interface, ensure convenience and safety communications equipment; and large-screen LCD, LED backlighting, reflect real scene of temperature, humidity and alarm status (up and down arrows); sensor and control sections are separated? better ventilation in contact with the outside world, can greatly improve the measurement accuracy of the temperature and humidity outside; on the lower range of temperature and humidity set free, real-time relay output exceeds a set value;? strong anti-jamming capability, low power consumption, the three stage lightning protection; meet explosion-proof requirements;? measurement accuracy and stability, high precision, high cost and other advantages. Applications: for wireless base stations, large warehouses, equipment rooms, power stations and other demanding temperature and humidity, we need real-time monitoring of places Specifications Dimensions: 120 (W) mm X 105 (height) mm X 22 (thickness ) mm; Display: LCD large screen liquid crystal display, legible; power: voltage DC12V ± 20% (V); Current: static 80mA, backlight 120mA; ripple allowed:> 500mV / 1KHz; instant interfere with the absorption:> 2000V / 600W / 100μS; limited flow, lightning protection, reverse polarity protection, meet explosion-proof requirements; Communication Interface: standard TCP / IP interface, transfer rate through the PC software settings, the factory default 38400BPS; YDN023-1996 agreement with MODBUS protocol support; measuring precision: ± 3.0% RH; temperature measurement accuracy: ± 0.4 ℃; humidity measuring range: 5% to 95%; temperature range: -30 ℃ ~ 70 ℃; Working environment: Operating temperature -30 ℃ ~ 70 ℃; relative humidity of 5% to 95%; Storage environment: Storage temperature -30 ℃ ~ 85 ℃; relative humidity of 5% to 95%. Immunity Index: Electrostatic discharge (ESD): ± 6KV contact discharge ± 8kV air discharge Electrical Fast Transient (EFT / B): Power supply port voltage spikes ± 2kV, I / O signals, data port peak voltage ± 1kV , pulse repetition rate of 5kHz Surge (impact) (SURGE): Power port lines - lines ± 2Kv line - to ± 2kV