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6 Maintenance
6.1 Maintenance of the meter
Once installed, the meter does not require any specific
attention except a periodical check or change of the lu-
bricant filled in the covers
After start-up:
Natural gas: After the preliminary term of service, the lu-
bricant level should be checked
Other gases: After a working period of 100 hours from
commissioning, the lubricant level should be checked
If the lubricant level is appreciably low, if the lubricant is
emulsified or if there is a chemical reaction between the
lubricant and the gas, the lubricant should be reassessed
and changed to fit the prevailing conditions
Periodical change of lubricant:
The period between checks or changes of lubricant de-
pends of the operating conditions (pressure variation,
flow rate )
Natural gas: Under normal conditions, lubricant has to be
changed every 5 to 8 years When the meter is used with
extremely clean gas the period can be extended
Other gases: Please consult us
Use solvent and alcohol free product to clean the meter
Repair must be done only by qualified personal After-
wards a tightness test with 1 1 x PS (Pmax) must be per-
formed
If used with wet gas, internal and external effect of cor-
rosion has to be checked regularly and in case of severe
corrosion, the meter has to be replaced
Spare parts:
When changing pressure containing parts, ensure that
spare parts that comply with the PED are used
6.2 Maintenance of optional equipment
6.2.1 LF and HF transmitters
These transmitters do not require any specific mainte-
nance The function of the transmitters can be checked
by comparing the electronic index with the meter index
6.2.2 Filter
If an increase of pressure loss is noticed, the filter should
be checked and cleaned/replaced before any mainte-
nance on the meter
Veuillez conserver ce mode d'emploi accessible pour tous
les utilisateurs Demander l'accord écrit du fabricant pour
tous les cas non prévus dans le présent mode d'emploi
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