Emerson MICRO MOTION 2700 Instrukcja Instalacji Strona 44

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34 Transmitter Configuration and Use: Series 1000 and 2000 Transmitters
Flowmeter Startup continued
5.3.3 Loop testing with a Communicator
See Figure 5-4 for the loop test procedure. Not all options are available on all
transmitters.
Note the following:
If you are testing the primary mA output, the HART/Bell202 signal to the
Communicator will affect the reading. Disconnect the Communicator before
reading the output, then reconnect the Communicator and resume the loop
test after taking the reading.
The mA reading does not need to be exact. You will correct differences
when you trim the mA output. See Section 5.4.
Figure 5-4 Communicator – Loop test procedure
Model 1500 AN
Model 1700 AN
Model 1700 IS
Model 2500 CIO
Model 2700 AN
Model 2700 IS
Model 2700 CIO
Diag/Service
Loop test
Fix Analog Out 1
Fix Analog Out 2
On-Line Menu
Fix Frequency Out
Read Discrete InFix Discrete Out 1
Fix Discrete Out 2
10 kHz
Other
Toggle remote input
device
Read output at
receiving device
Read output at
receiving device
Loop test successful
OK or END to unfix
output
Check output wiring
Troubleshoot output
Read output at
receiving device
ON or OFF
Verify reading at
transmitter
4 mA
20 mA
Other
Ye s No output
Near
specified value? Correct? Correct? Correct?
Loop test successful Check input wiring
Troubleshoot remote
device
Ye s No input
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