7 I/O wiring for Model 1700 and
Model 2700 transmitters with analog
outputs
Topics covered in this chapter:
• Basic analog wiring
• HART/analog single loop wiring
• RS-485 point-to-point wiring
• HART multidrop wiring
7.1 Basic analog wiring
Basic analog wiringFigure 7-1:
A. mA output loop (820 Ω maximum loop resistance)
B. Frequency receiving device (output voltage level is +24 VDC ± 3%, with a 2.2 kΩ pull-up resistor)
I/O wiring for Model 1700 and Model 2700 transmitters with analog outputs
Installation Manual 77
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