Honeywell UDC3500 - Figure 2-26 Transmitter Power for 4-20 Ma - 2 Wire Transmitter Using Second Current Output

Installation
3/07 UDC3500 Universal Digital Controller Product Manual 43
2 Wire Transmitter
_
+
Input #1 Second Current Output
250
Ω
35 +
36 -
24 +
25 -
Configure:
CUROUT2 = OUT
Current Output #2 Calibration
ZEROVAL = 16383
SPANVAL = 16383
If necessary, install a zener diode here to reduce voltage at the
transmitter. A 1N4733 will reduce the voltage at the transmitter to
approximately 25 Vdc.
1
1
Figure 2-26 Transmitter Power for 4-20 mA — 2 Wire Transmitter Using Second
Current Output