Flow Measurement With Dp Transmitter; Table 29 Starting Up Dp Transmitter For Flow Measurement; Figure 28 Typical Piping Arrangement For Flow Measurement With Dp Type Transmitter - Honeywell ST 3000 User Manual

Flow Measurement with DP Transmitter

Procedure
The procedure in Table 29 outlines the steps for starting up a differential pressure (DP) type transmitter in a
liquid flow measurement application. Refer to Figure 28 for the piping arrangement identification and
Figure 27 for typical communicator and meter connections.

Figure 28 Typical Piping Arrangement for Flow Measurement with DP Type Transmitter

ATTENTION
For the procedure in Table 29, we are assuming that all the valves on the three-valve manifold
and the block-off valves were closed at installation.
Step
1 Connect communicator across loop wiring; turn it on and establish communications. If
possible, locate communicator where you can also view receiver instrument in control loop. If
you want to verify transmitter output, connect a precision milliammeter or voltmeter in loop to
compare readings.
Refer to Figure 27 for sample communicator and meter connections in a typical analog loop
with a differential pressure-type transmitter.
10/05
HP
HP Blockoff
Valve A
Valve C

Table 29 Starting Up DP Transmitter for Flow Measurement

ST 3000 HART Transmitter Release 300 User Manual
7— Start-up - Flow Measurement with DP Transmitter
LP
Action
LP Blockoff
Plug G
Plug F
Valve B
Differential
Pressure
Transmitter
69