FIGURE 2:
MOUNTING ASSEMBLY
FIGURE 3:
ROOM, FOAM PAD
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone:
1-888-967-5224 |
Website:
workaci.com
Page 2
Version: 2.0
I0000819
INSULATION
PIPE
MOUNTING
(CONTINUED)
As you are tightening the clamp, make
sure the sensor does not rotate. Place
insulation around the sensing point to
prevent ambient air affecting the sensed
temperature - see
FIGURE 3
.
WIRING INSTRUCTIONS
Open the cover of the enclosure. ACI recommends 14 to 22 AWG twisted pair wires or shielded cable for
all sensors. Signal wiring must be run separate from low and high voltage wires (24/120/230VAC). All ACI
thermistors and RTD temperature sensors are both non-polarity and non-position sensitive. Thermistor
sensors are supplied with (2) flying lead wires, and RTD’s are supplied with (2) or (3) flying lead wires – see
FIGURE 4
. The number of wires needed depends on the application.
Connect thermistor/RTD wire leads to controller analog input wires using wire nuts, terminal blocks, or
crimp style connectors. All wiring must comply with all local and National Electric Codes. After wiring,
attach the cover to the enclosure.
Note:
When using a shielded cable, connect only (1) end of the shield to ground at the controller only.
Connecting both ends of the shield to ground may cause a ground loop. When removing the shield from
the sensor end, make sure to properly trim the shield to prevent any chance of shorting.
Note:
If the controller requires a (2) wire input for a RTD, connect the (2) common wires(same color)
together. If the controller requires (3) wires, use (3) individual wires.
INSULATION ADDED TO COVER
SENSOR. INSULATION CAN WRAP
AROUND ENTIRE ENCLOSURE.
Thermistor or
RTD 2-Wire
Wire Nut
Wire Nut
RTD 3-Wire
Same Color
Wires
Wiring from Controller
Analog Input
Wiring from Controller
Analog Input
FIGURE 4:
WIRING
2-WIRE THERMISTOR or RTD WIRING
3-WIRE RTD WIRING
