Emerson MICRO MOTION 1700 - Manual (Page 104)

CAUTION!
Exceeding 30 VDC can damage the transmitter. Terminal current must be less than 500 mA.
Recommended pull-up resistor versus supply voltage Figure 9-7:
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
9.3.3 Internally powered frequency output wiring on Channel
C
I/O wiring for Model 2700 transmitters with configurable input/outputs
100 Micro Motion ® Model 1700 and 2700