User manual - ATR227 -
9
5.1.c
Examples of connection for Volt and mA inputs
B
2
6
+12V
30mA
4..20mA
V/A
C
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
A
1
For linear signals 0/4..20 mA with three-wires
sensors.
Comply with polarity:
A= Sensor output
B= Sensor ground
C= Sensor supply (+12Vdc / 30mA)
2
4..20mA
V/A
B
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
EXTERNAL SUPPLY
ALIMENTAZIONE
ESTERNA
A
1
For linear signals 0/4..20 mA with external power
supply for sensor.
Comply with polarity:
A= Sensor output
B= Sensor ground
6
+12V
30mA
4..20mA
V/A
C
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
A
1
For linear signals 0/4..20 mA with two-wires sensors.
Comply with polarity:
A= Sensor output
C= Sensor supply (+12Vdc / 30mA)
5.1.d
Relay Q1 - Q2 output
Contacts capacity 5 A / 250 V~ resistive loads.
NB
: see graphic below.
Electrical endurance Q1 / Q2.
2 A, 250 Vac, resistive load, 105 operations.
20/2 A, 250 Vac, cosφ = 0.3, 105 operations.
