EN0C-0610 0398R3-MA
H7012A,B
ROOM HUMIDITY SENSOR/
COMBINED ROOM HUMIDITY/TEMPERATURE SENSOR
FEATURES
• Pt 1000, BALCO 500 or 20kΩ NTC temperature
sensing element
• Wide sensing range
• Capacitance type sensing element for relative
humidity
• Plug-in design
GENERAL
The H7012A Room Humidity Sensor is a capacitance type
relative humidity sensor for wall mounting.
The H7012B Combined Room Humidity/Temperature Sensor
incorporates a capacitance type relative humidity sensor with
a Pt 1000, BALCO 500 or 20kΩ NTC temperature sensor in
one housing.
These sensors are used for control, indication and alarm
monitoring in room air conditioning installations.
Models
OS-No. Temperature Sensor Type
H7012A1009
H7012B1007 Pt 1000
H7012B1015 BALCO 500
H7012B1023
20kΩ NTC
SPECIFICATION
General:
Power supply 24Vac, +20...-30%; 50/60Hz,
34Vdc, +20...-30%
Current consumption 20mA @ 24V
Ambient 0...50°C (+32...122°F), 5...95%rh
operating limits non condensing
Ambient -25...70°C (-13...158°F), 5...95%rh
storage limits non condensing
Dimensions see Fig. 2
Weight 130g
Case Plastic ( ABS )
flame retardend acc. to UL94-V0
Mounting Wall, surface or wall outlet box
Protection Standard IP 30 acc. to EN60529
Safety Class II acc. to EN60730-1
PRODUCT DATA
Fig. 1 Room Humidity / Temperature Sensor
This product meets the requirements of
CE
H7012A,B Room Humidity / Temperature Sensor
EN0C-0610 0398R3-MA 2
Temperature:
Temperature sensing
range 0...50°C (32...122°F)
Nominal value
Pt 1000 1000Ω @ 0°C
BALCO 500 500Ω @ 23.3°C
NTC 20kΩ @ 25°C
Accuracy
Pt 1000
±
0.3K acc. to DIN IEC 751 Class B
BALCO 500
±
0.4K @ 23.3°C
NTC
±
0.2K at 25°C
Sensitivity
Pt 1000
≈
3.85Ω/K
BALCO 500 2Ω/K
Characteristic see EN0C-0603
Response time @ air velocity 0.02...0.07m/s
τ
0.5 Pt 1000
=50s
τ
0.5 Balco 500
=140s
τ
0.5 NTC
=134s
Overview
Following sensors can be applied for the following control
systems:
Relative Humidity:
Humidity sensing
range 5...95%rh
Output signal 0...1V / 0...10V = 0...100%rh
Output Impedance
1V range 183
Ω
10V range 274
Ω
Outputs short circuit protected
Sensitivity 10mV / %rh or 100mV / %rh
Accuracy
5...10%rh
±
10%
10...30%rh
±
5%
30...70%rh
±
3%
70...90%rh
±
5%
90...95%rh
±
10%
Response time
τ
0.5
=20s
Control systems Temperature Humidity
Pt 1000 20kΩ NTC BALCO 500 0...1Vdc 0...10Vdc
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