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Examples of Connection for linear input
0...10V
C
0/4...20mA
B
A
PRESSURE TRANSMITTER
C
0/4...20mA
B
EXTERNAL SUPPLY
PRESSURE TRANSMITTER
C
4...20mA
A
PRESSURE TRANSMITTER
Serial input
Shield
For signals 0....10V
• Comply with polarity
For signals 0/4....20mA with three-wire
sensor
• Comply with polarity
C = Sensor output
B = Sensor ground
A = Sensor power
For signals 0/4..20mA with external
power of sensor
• Comply with polarity
C = Sensor output
B = Sensor ground
For signals 0/4...20mA with two-wire
sensor
• Comply with polarity
C = Sensor output
A = Sensor power supply
RS485 Modbus RTU communication
Do not use LT (line termination)
resistors
• For networks with more than five
instruments supply in low voltage
UR3274U - User manual
11
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