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Model |
: RH4 |
|
Range |
: 0 to 100%RH / -40 to 100ºC |
|
Output |
: 4 - 20mA, 0 - 10V, RS485 Modbus |
|
Display |
: NIL |
|
Accuracy |
: ± 2%RH / ±0.3 K |
|
Versions |
: Remote Mount |
|
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Features : |
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High performance digital sensors and circuits, ensure accurate measurement and temperature compensation |
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Good long term stability and reliability |
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100% field changeable sensors, no re-calibration needed |
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Fast response |
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Digital technology applied, multiple output optional, over voltage and reverse polarity protection, high reliability and \interference capability |
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Industrial design, SS probe and selectable filter |
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High protection rate up to IP65 |
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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) |
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Humidity and temperature monitoring in critical environment such as outside air (H3, outside mount) |
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Other applications of immersion humidity and temperature monitoring (H4, separate probe) |
|
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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) |
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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) |
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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 |
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Protection |
: IP65 |
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