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Wiring
Disconnect the power supply before beginning wiring to
prevent electrical shock or equipment damage. All wiring
must comply with applicable codes and ordinances.
Follow the wiring information furnished by the controller
manufacturer or refer to Fig. 4 for a typical wiring hookup.
Note and follow polarity markings for hookup.
C7600C
RETURN AIR
HUMIDITY SENSOR
1
237 OHM, 1 PERCENT, 1/8 WATT
METAL FILM RESISTOR.
M3128
+
1
Fig. 4. Wiring C7600A Solid State Humidity Sensor to W7600.
C7600A SOLID STATE HUNIDITY SENSOR
OPERATION
The C7600A Solid State Humidity Sensor provides a 4 to 20
mA output signal that is inversely proportional to the relative
humidity of the return air.
The sensing element in the C7600A Solid State Humidity
Sensor is a humidity-sensitive polyamide film that changes
capacitance with a change in humidity. This change in
capacitance is converted by a printed circuit board assembly
to an output current between 4 and 20 mA. The output current
is used by an analog or a microprocessor-based controller to
measure and control humidity.
W7600
=8
=7
=6
=5
DIGITAL
=4
INPUTS
=3
=2
=1
=D COM
=24 VDC(+)
=8
ANALOG
=7
INPUTS
=6
=5
=A COM
=20 VDC(+)
=4
ANALOG
=3
INPUTS
=2
=1
=A COM
24 VAC
=V1
INPUT
=V2
=GND
5
8=
7=
DIGITAL
6=
OUTPUTS
5=
D COM=
4=
3=
DIGITAL
2=
OUTPUTS
1=
D COM=
4=
3=
ANALOG
2=
OUTPUTS
1=
A COM=
4=
3=
S7600A
2=
1=
GND=
24 VAC
V2=
OUT
V1=
V2=
24 VAC
V1=
OUT
63-2150—5
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