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L -- 740 -- 28 -- E
8. OPERATION
8.1 Flushing the Piping Assembly
If scale and sludge are expected to be left in the piping assembly, particularly in a new piping assembly,
flush the assembly prior to sensor unit installation.
8.2 Confirming the Sensor Unit for Correct Installation
,
For safety
s sake, confirm connecting bolts to tightness and gaskets for condition. Make certain of flow
direction at the same time.
8.3 Leak Check
Fill the sensor tube completely with process fluid and check for any leak from connections.
8.4 Supplying the Power
Upon completion of checks for correct wiring connections, supply power. The LCD will show the following
information:
8.5 Measurement Line Startup
By starting up the pump, opening valves, etc., carefully allow the process fluid to flow.
8.6 Warm-up
To ensure stability of the measuring conditions of equipment, provide about 20 minutes
(A message "WARMUP 20" stays on after startup. The number shows remaining time (min).)
8.7 Zeroing Procedure
On seeing that the measuring conditions have come to an equilibrium, shut off the downstream valve
completely. Make a zeroing adjustment under these conditions (see the topic under 9.8 Zeroing).
8.8 Readying for Operation
Now preparation for operation is complete. Initiate measurement.
Corporate logo is shown.
Self diagnostics begins.
If nothing unusual is found, "OK" appears at right of
each item, bringing up the next window.
(If NG appears, running a check on that item is
required.
See 9.6.3 Transmitter Check, correct the condition, and
turn on power again.)
Variable view and measurement begins.
,
warmup period.
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