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  Temp Transmitter & Modbus
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  Transmitter
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   Humidity Transmitter
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RH2 : Duct Mount Humidity Temperature Transmitter
Model : RH2
Range : 0 to 100%RH / -40 to 100ºC
Output : 4 - 20mA, 0 - 10V, RS485 Modbus
Display : NIL
Accuracy : ± 2%RH / ±0.3 K
Versions : Duct Mount

Features :

High performance digital sensors and circuits, ensure accurate measurement and temperature compensation
Good long term stability and reliability
100% field changeable sensors, no re-calibration needed
Fast response
Digital technology applied, multiple output optional, over voltage and reverse polarity protection, high reliability and \interference capability
Industrial design, SS probe and selectable filter
High protection rate up to IP65

Applications :

H2, 3 and 4 humidity and temperature transmitters are designed for environment monitoring and controlling in industrial and commercial buildings. These transmitters can be used for:
Humidity and temperature monitoring of supply, exhaust and return air (H2, duct mount)
Humidity and temperature monitoring in critical environment such as outside air (H3, outside mount)
Other applications of immersion humidity and temperature monitoring (H4, separate probe)

Specifications :

Relative Humidity
Sensor : Digital polymer
Range : 0~100%RH
Output : 4~20mA(2 wires), 0~10VDC(3 wires), RS485
Accuracy : 2,3,4.5%RH(25°C,20~80%RH)
Hysteresis : <±1%RH
Response time   <10s(25°C,in slow air)
Drift : <±0.5%RH/year
Temperature
Sensor : Solid state band gap, RTD or thermistor
Range : 0~50°C,0~100°C, -40~60, or others (transmitter)
Output : 4~20mA(2 wires) , 0~10VDC(3 wires) , RS485, or
  RTD, thermistor
Accuracy : see model table
Power : Current 7.5~36VDC, Voltage & Other 15~35VAC/DC
Output Load : <600 ohm (current), >2Kohm (voltage)
Temperature Limit : -40~85°C, 0~95%RH (Non condensing)
Storage Temperature : -40~80°C
Housing : Fireproof ABS Enclosure, SS probe, SS mesh filter or
  sintered filter
Protection : IP65
humidity instrument calibration, humidity instrument
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