Rockwell Automation 1414-ITZxxxxx_CTZxxxxx Outside Air Temperature Transmitter - Manual (Page 3)

Outside Air Temperature Transmitter 3
Publication 1414-IN010A-EN-P - October 2005
Install the Outside Air Temperature Transmitter
For best results locate the sensor on the north side of the structure high under an
eave to prevent incorrect readings from direct sunlight and damage due to the
elements. Mount the OSA enclosure with the sensor module facing down to
prevent the accumulation of dirt or water.
Wire/Connect the Outside Air Temperature Sensor
The wiring diagram shows typical connections to a controller. For 4 to 20 mA loop
signal, only the PWR and OUT terminals are used.
Field Calibration
The unit can be calibrated in the field by using precision resistor values equal to the
zero and span of the transmitter temperature range.
1. Disconnect the sensor from the transmitter and connect the resistor that
represents the zero value to the EXC and NEG terminals.
OSA Sensor
North
NEG
EXC
SEN
PW
R
CO
M
OU
T
SPAN
ZERO
+ 24 VDC -
ANL IN 0 +
ANL IN 0 -
Analog Current Input
ANL COM
Loop power supply
2-wire RTD
Sensor
Temperature Transmitter