WHD Series Temperature & Humidity Controller
WHD20R-22 Din Rail Mounted Temperature & Humidity Controller
picture |
standard |
optional |
optional group |
 WHD20R-11 |
Measure one channel temperature & humidity(with one sensors) |
1.C: RS485(Modbus-RTU) |
JC |
2.J: Alarm |
picture |
standard |
optional |
optional group |
 WHD20R-22 |
Measure two channels temperature & humidity(with 2 sensors) |
1.C: RS485(Modbus-RTU) |
JC |
2.J: Alarm |
GENERAL
FUNCTIONS
Accuracy
Temperature ±1℃
Humidity ±5%RH
Consumption
Auxiliary power supply:
Basic power consumption(≤0.8w)
Relay power consumption(each channel≤0.7w)
Installation
DIN rail 35mm
Dimension(L*W*H)
88*90*52mm
Auxiliary power supply
AC 85-265V, DC 100-350V
TECHNICAL PARAMETERS
| Technical Parameter | Value | |
| Measuring Range | Temperature | -40.0℃~99.9℃ |
| Humidity | 0%RH~99%RH | |
| Precision | Temperature | ±1℃ |
|
Humidity |
±5%RH | |
| Transmitting Output | DC 4-20mA or DC 0~20mA | |
| Set range of controlling parameter | Heating for Temperature rising |
-40.0℃~40.0℃ |
| Blowing for temperature decreasing |
0.0℃~99.9℃ |
|
| Humidity control | 20%RH~90%RH | |
| Output Contact Capacity | 5A/AC250V | |
| Start/stop gap | 5 | |
| Communication port | RS485,MODBUS(RTU) treaty | |
| Auxiliary Power | Voltage | AC/DC 85-265V |
| Consumption | Basic power consumption(≤0.8w)+relay power consumption(each channel≤0.7w) | |
| Insulation Resistanced |
≥100MΩ |
|
| Power-frequency withstand voltage | power with shell,touchable metal parts/power with other terminal group 2kV/1 min(AC.RMS) | |
| Average work time without stoppage | ≥50000 hours | |
| Working condition(controller) | Temperature | -20℃~+60℃ |
| Humidity | ≤95%RH,without condensation and corrosive gas | |
| Altitude | ≤2500m | |
Dimension
Wiring
Typical Connection
FAQ
Q: Connect users between the sensor and the controller,Can it be matched?How long is the length in meters?
A: The user can wire,but it is required to use a 4-core shielded wire,and a 2.5-meter shielded wire is attached to the factory.
The longest distance between the sesor and the controller is 20 meters.
Q: Can WHD Switch control manually and automatically?
A: Yes,but be sure to explain to the customer service before placing an order,it is an unnormal operation.
Q: User have their own sensor,can they buy a controller?
A: No,the sensor and controller need to be used together,2 device can not sold seperately.
PACKAGE
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MINIMUM PACKAGE |
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MINIMUM PAKAGE |
Package dimensions(1 PC) 170*150*130mm |
Package Weight(1 PC) 0.17Kg |
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WHOLE BOX PAKAGE |
Package dimensions(36 PCS) 450*240*250mm |
Pakage Weight(36 PCS) 6.5kG |
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PRODUCT HS CODE |
9032100000 |
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ATTENTION !
The above packing and weight data are only refer to model WHD20R-22.
For other models or optional functions, please contact the salesman for details, thank you for your cooperation!
