Figure 27 Typical Communicator And Meter Connections For Constant-Current Source (Output) Mode - Honeywell ST 3000 User Manual

7— Start-up - Running Analog Output
Step
6 Check that receiving device indication is at its 100% point. If applicable, check that
milliammeter reading is 20 mA or voltmeter reading is 5.0V.
• If you want to choose another output value, then press OK and go to Step 7.
If you have completed the loop test, then press OK and go to Step 8.
•
7 Select Other and press ENTER, then use communicator's keyboard to enter other values.
For example,
If you want an output of:
The communicator notifies you that the transmitter's output is fixed at that value.
When you have completed the loop test, press OK and go to Step 8.
8 Select "End" and press ENTER. The communicator will notify you that it is returning the
transmitter to its original output.
A screen will prompt you to return the loop to automatic control. After doing so, press OK.
Differential
Pressure
Transmitter
Figure 27 Typical Communicator and Meter Connections for Constant-Current Source
68
Transmitter output
LP
HP
ST 3000 HART Transmitter Release 300 User Manual
Action
PV in %
8.0 mA 2.0V 25%
8.8 mA 2.2V 30%
12.0 mA 3.0V 50%
16.0 mA 4.0V 75%
Field
Precision
Terminals
Milliammeter
Note: Polarity of the Communicator
connection does not matter.
(Output) Mode
Communicator keystrokes
press 8 and ENTER.
press 8.8 and ENTER.
press 12 and ENTER.
press 16 and ENTER.
Voltmeter
+
Power
Red +
250 Ω
Supply
-
+
-
-
Black -
Receiver
+
HART hand-held
Commnicator
10/05