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D-546-9-E
8. OPERATION
8.1 Flushing the Piping Assembly
On a newly installed piping assembly where scale,
sludge and other foreign matter are expected,
flushing the piping assembly is necessary before
commencing meter operation.
In order to safeguard the meter, use a bypass line for
flushing. If there is no bypass line, install a short pipe
section in place of the meter as shown in Fig. 8.1.
8.2 Operation Procedure
① Drainage (in steam service)
To prevent steam hammer, drain the piping assembly completely.
② Checking the meter for proper installation
To ensure safety, inspect connecting bolts, gaskets, etc. for tightness and other condition.
Make sure of the flow direction also.
③ Leak check
Fill the meter with the fluid and check for any leak.
④ Turn on power (with separately-mounted preamplifier)
Upon completion of wiring connections, turn on power.
Verify that the receiving instrument will not register erratic counts with no flow.
⑤ Starting up the measurement line
By starting up the pump or opening the valve, carefully allow the fluid to flow.
CAUTION: To safeguard the equipment connected, exercise care not to increase the flowrate sharply.
⑥ Checking the operation
Verify that the receiving instrument registers properly.
Make sure that the fluid conditions (pressure, temperature, etc.) and flowrate conform to the meter
specifications.
