DRESSER MZ Mode D'emploi page 7

• The following recommendations have to be observed
for repair:
• In case of use with aggressive or dangerous gas, it may
be necessary to send a safety statement with the me-
ter, detailing the type of Gas that has been measured .
• Some gas may still be present inside the meter and
the pipe; therefore sufficient ventilation is required .
• Repairs and maintenance must be done by trained or
qualified personal . Afterwards a tightness test with 1 . 1
x PS (Pmax) must be performed .
• When changing pressure-bearing parts, ensure that
spare parts which comply with the PED are used .
• If used with wet gas, internal and external effect of
corrosion has to be checked regularly and in case of
severe corrosion, the meter must be replaced .
• Use solvent and alcohol free cleaning product to clean
the meter .
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