Maintenance Of Optional Equipment; Lf And Hf Transmitters; Filter - ITRON Quantometer Delta QD Manual De Instrucciones

should be reassessed and changed to fit the pre-
vailing conditions .
Periodical change of lubricant:
The period between checks or changes of lubri-
cant depends of the operating conditions (pres-
sure 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 .
Afterwards a tightness test with 1 . 1 x PS (Pmax)
must be performed .
If used with wet gas, internal and external effect of
corrosion 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
maintenance . 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 maintenance on the meter .
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