Zero Adjustment - Honeywell SmartLine ST 700 User Manual

13.3.1 Zero Adjustment

This adjustment is the same as performing a Set LRV using the display.
1. Connect a current meter or voltmeter as shown in Figure 56 to monitor the PV output of the
transmitter.
2. Using an accurate pressure source, apply pressure equivalent to the transmitter LRV.
3. Press the Zero (  ) button for more than 2 seconds to set the Zero.
4. Verify that the output is now 4 mA.
Note: Pressing the zero button for more than 5 seconds will ignore the button press.
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ST 700 SmartLine Pressure Transmitters User's Manual
Revision 13