Nitto Flowtech MF710, Инструменты операции

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picture 6
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10. The preparation of pre-operational
Sensors installed in the metal pipe of grounding diagram
1, grounding line (outside interference device larger installation)
2, Flowmeter grounding line (with factory)
Plastic pipe or pipe insulation lining grounding diagram
1, grounding line (outside interference device larger installation)
2, Flowmeter grounding line (with factory)
3, grounding or earthing ring flange
Pipeline cathodic protection installed for the grounding diagram
1, grounding device line (outside interference larger installation)
2, flowmeter grounding line (with the factory);
3, grounding or earthing ring flange must be consistent with the flange
connecting pipe insulation
4, bolts (installed with the flange should be mutual insulation)
5, connecting wire, copper cross-sectional area of 16mm. So that piping
and cathodic protection isolate between the sensor.
Important Note: the whole instrumentation (including sensors and Transmitter) to run a rigorous adjustment and
flow calibration in the factory, one by one after passing the test
In Plants. To the end user, So, it can be put into operation without any adjustments. Therefore, the initial
operation of the problems encountered, should be in accordance with the specifications Reference points one
by one inspection, a careful analysis, troubleshooting. Avoid Blindly tamper to make a good set of adjustments
to the original instrument to confuse or even damage.
Instrument can be put into operation the following steps:
1) First open upstream and downstream the valve with Sensor, so that sensors measuring tube filled with test
medium;
2. ) Power for one minute, Transmitter showed an immediate increase to a certain numerical value, pls wiring is
correct or not, when the flow direction is wrong,pls
Check the direction of the sensor installation is correct.
3) zero Trim , instrument through the media 15 minutes after the first sensor tightly closed valve downstream
side, and then shut down the upstream side of the valve, so that tube
Stop the flow of fluid and no leakage, the flow shows zero. Zero if too high or too low, Pls do Zero Trim on the
Transmitter.
Specific operations see Transmitter Manual p. 27
SENSORS PARTS
09
SENSORS PARTS
TM
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SENSORS