User manual - ATR142- 11
EXTERNAL SUPPLY
ALIMENTAZIONE ESTERNA
PRESSURE TRANSMITTER
0/4...20mA
B
C
1112
For signals 0/4..20mA with external
power of sensor
• Comply with polarity
C = Sensor output
B = Sensor ground
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
C
4...20mA
A
12 9
For signals 0/4..20mA with two-wire
sensor
• Comply with polarity
C = Sensor output
A = Sensor power supply (12V/30mA)
5.1.d Serial input
1176
-
+
Shield/Schermo
RS485
RS485 Modbus RTU communication
Do not use LT (line termination)
resistors
• For networks with more than
five instruments supply in low voltage
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