Automation Components ACI/ACI RH Room Series - Manual (Page 3)

2305 Pleasant View Rd. Middleton Industrial Park Middleton, WI 53562
PH: (608) 831-2585 FAX (608) 831-7407
I0000144.DOC REV 2
Decrement RH Output - This DIP switch will allow you to calibrate the sensor through the software. The switch
must be toggled from the Off to the On position and then returned to the Off position for a
decrease of 0.5% RH. This means that if your humidity has drifted 1% over a certain time
period, you will be able to toggle the Decrement RH Output switch 2 times in order to
slide the whole curve downward. Note: This is only a single point calibration, and is not
recommended for critical applications. Please contact the factory before doing any
field calibration.
Reset to Original Calibration - Both the Increment and the Decrement DIP switches should be turned on for a
minimum of 5 seconds before turning them both off again. This will allow you to reset
the transmitter back to the original factory calibration.
Temperature Sensor Wiring Diagram (For RH/Temperature Combination Units only)
1 2 3 4
ON
4 5 6 3 2
ON
1
SW2
SW3
Io Gnd Vin Vo
Relative Humidity Sensor
Span Adjust
Potentiometer
Zero Adjust
Potentiometer
In Series with
Override Shorts
Figure # 7
Override Jumper Settings (J2)
Sensor
Sensor
Separate Input
Separate Input
(Dry Contact)
Figure # 5
Wire Access Hole
S2 S1
Relative Humidity Temperature Sensor
Temperature Sensor (Combination Unit)
Setpt + - T
O
/R
J2
J3
Setpoint Jumper Settings (J3)
J2 J2
J3 J3
Figure # 6
"After Hours" N/O Override Pushbutton
Adjustable Setpoint Actuator
"After Hours" N/O Override ( Dry Contact Closure)
"After Hours" N/O Override (Dry Contact Closure)
Adjustable Setpoint Output to Controller
Adjustable Setpoint Output to Controller
(-) Temperature Sensor / Override (Short Sensor)
Output to Building Automation /DDC System
Output to Building Automation / DDC System
(+) Temperature Sensor / Override (Short Sensor)
Note: When using an AD592 or LM334 Temp. sensor with a current (uA)
output, the (+) T terminal should be used for a +5 to 30VDC
supply voltage and the (-) is the current output to the Building
Automation or DDC System.
Space Mount:
The RH transmitter should be placed away from areas of excessive moisture, corrosive fumes, vibration, or extremely high
temperatures. The base of the housing was designed to mount over a standard 2” X 4” single gang junction box or flush to
the wall. All of the RH sensors have a +/- 3% interchangeability. It is recommended to do a single point calibration for a
much higher accuracy.
1. Mount the unit on an indoor wall, approximately 4 to 6 feet above the floor.
2. Make sure that the unit receives adequate airflow.
3. Connect the wires to the corresponding terminal blocks as shown in Figure #4 and Figure #5.
4. Now make sure that all of the dip switches are properly set before initially powering the unit.
5. Now snap the cover back into position.
6. Finally turn out the (2) 1/16”Allen screws at the bottom of the enclosure until the cover cannot be removed.