Operation & Maintenance Manual
OMM1002
3
Installation
1.
Check the instrument for any transit damage. Any damage to the by
-
pass loop could increase resistance to flow and therefore ren-
der calibration inaccurate.
2.
Re
-
check that the instrument is suitable for the chosen application.
3.
Check that the box includes (for complete instruments only):
a) A Carrier of either Flanged or Grooved style.
b) An Indicator by
-
pass loop, assembled for Horizontal pipelines & Left to Right flows.
c) 2 x Tube & Float Assemblies (1x assembled in Indicator housing).
d) An impulse pipe for Vertically, Upwards flows.
e) An impulse pipe for Vertically, Downwards flows.
4.
Check that the Platon Reference numbers on the Carrier and glass Tube are identical.
i.e. F1/** (see Table 2).
5.
Remove any packing materials, as necessary, from any component.
6.
For best accuracy ensure that the pipeline bores are smooth and that they match that of the Carrier.
7.
Select a location to ensure compliance with the Recommended Pipeline Configurations (see Fig 1 & Table 3).
Carrier Installation
Flanged Style
1.
The Carrier should be mounted inside the bolt circle of two flanges (see Specification).
2.
Ensure the Carrier is precisely centred in relation to the pipeline & flanges.
3.
Ensure that the Gaskets (not supplies) either side of the Carrier has an Inside Diameter (I.D.) greater than or equal to the pipe nomi-
nal bore. Also ensure that when assembled no part of the gasket protrudes into the pipeline at any point.
Grooved Style
1.
The Carrier should be mounted to the pipeline using two appropriately specified joints.
2.
Always lubricate gasket joints, so as to avoid pinching and leakage.
Both Carrier Styles
1.
Ensure the Carrier flow label matches the flow direction of the pipeline.
2.
Ensure the process connections of the Carrier protrude from the pipeline in the correct direction to ensure:
3.
Vertical Indicator assembly.
4.
Readable Viewing angle.
Indicator Installation
1.
Based on the pipeline orientation and direction of flow, assemble the Indicator by
-
pass loop, using the appropriate impulse pipe.
Note the factory supplied set
-
up, is for Horizontal, Left to Right flows.
2.
Whatever the main pipeline configuration ensure that the Float moves freely in the glass Tube and that the indicator is accurately
Vertical.
3.
Rotate the Indicator housing & glass tube, in relation to the rest of the Indicator by
-
pass loop, to obtain the best viewing angle.
Table 3
—
Recommended Minimum Upstream & Downstream Pipe Lengths (See Fig. 1)
Carrier
Nominal Bore (mm) & Pipe Style Specification
50
80
100
150
200
BS1387
BS3600
L
250
400
500
750
1000
D1 Flanged
38.1
D2 Grooved
89.1
98.1
Min 5 x NB
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