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CAUTION!
Exceeding 30 VDC can damage the transmitter. Terminal current must be less than 500 mA.
Recommended pull-up resistor versus supply voltageFigure 6-13:
3600
3200
2800
2400
2000
1600
1200
800
0
5 10 15 20 25 30
Supply voltage (Volts)
External pull-up resistor range (Ohms)
4000
4400
6.4 Discrete input wiring
6.4.1 Internally powered discrete input wiring
Internally powered discrete input wiringFigure 6-14:
I/O wiring for Model 2500 transmitters
Installation Manual 45