INSTALLATION | WIRING GUIDE
AST Pressure Sensors
TE CONNECTIVITY SENSORS
/// INSTALLATION | WIRING GUIDE
12//2018
Page 12
Pressure & Temp.
DIN
(AST20PT)
DIN 43650A 18.0mm
Mini-DIN 43650C 8.0mm
AST Electrical Connection
Option
“I”
“E”
Mates w/
931 970-100 [conduit] or equivalent
933 023-100
AST Mating Connector Part #
A09171
A01980
Output Type
Pin 1
Pin 2
Pin 3
Wide Pin
Pin 1
Pin 2
Pin 3
Wide Pin
3 Wire Voltage
+V(in)
-V (in)
Press
(out)
Temp
(out)
Press
(out)
-V (in)
+V (in)
Temp
(out)
4-20mA (2 wire loop powered)*
+Press
-Press
+Temp
-Temp
+Press
-Press
+Temp
-Temp
+V
Voltage Supply
-V
4-20mA Electrical Ground / Signal [see schematic]
S
Voltage Output Signal
GND
Voltage Electrical Ground
Case
Case / Earth Ground
(Do not connect or tie the case ground to the electrical ground)
N/C
Not Connected
* For units with loop-powered 4-20mA output, the pressure loop must be powered or the temperature output will not operate.
