TP0003B
BM METER
Chap 4
Page 2
INSTALLATION, OPERATION & MAINTENANCE
2.5
The Bulkmeter should be installed so that air or vapour cannot pass through it during normal
operation. If air or vapour cannot be eliminated from the system under normal operating conditions,
an air separator with an adequate vent line should be installed.
2.6
In order to protect the meter from damage due to entrained foreign matter within the system, it is
recommended that a suitable strainer is installed in the upstream pipeline, if an air separator is also
fitted, this is to be installed between the strainer and the meter.
2.7
It is recommended that until proved on examination that a strainer is capable of dealing with entrained
foreign matter, that a pipe spool or bypass is fitted and the system operated with the meter out of
circuit.
2.8
In cases where the rate of flow through the system could exceed the maximum rated capacity of the
installed meter, it is recommended that a flow control valve is fitted to the system. This should be
bolted to the
outlet flange
of the meter.
2.9
Any flow control valve installed is to be fitted in the downstream pipeline.
2.10
To ensure that meters are not subjected to shock pressures appreciably greater than the maximum
operating pressure,
Quick Acting Valves MUST NOT be used.
2.11
The design of all ancillary equipment and pipelines in the installation are to be such that turbulence
and pulsations are reduced to a minimum.
3
OPERATION
3.1
There is little for the operator to do once the bulkmeter is installed. The primary task is to reset the
register to zero on completion of each delivery. It is important that the register is never reset during a
delivery as the reading will be lost and damage may be caused to the register.
4
MAINTENANCE
4.1
The maintenance frequencies recommended are a minimum, however, local company instructions
must be observed.
4.2
Daily:
inspect the meter for signs of damage or leaks. Defects must be rectified immediately or the
meter withdrawn from service.
4.3
Six monthly:
check the meter for accuracy using an Avery--Hardoll brand Master Meter or similar
method of testing. Adjust as necessary.
4.4
Yearly or after 2,500,000 Units:
Clean, inspect and lubricate the Veeder Root counter mechanism
as detailed in Veeder Root Manual No. 251325. Lubricate the calibrating mechanism with GREASE.
4.5
For meters in Service: renew dynamic seals yearly and static seals every two years.
4.6
For meters in storage: renew all seals every two years.
5
STORAGE
5.1
If a meter is to be withdrawn from service and stored it is important that the following instructions on
cleansing and inhibiting are carried out. A meter stored in a dirty condition is subject to corrosion and
subsequent deterioration of performance when re-installed.
Содержание Avery-Hardoll BM Series
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