External Silicagel Cartridge; Inspection And Repair - DRESSER FLUXI 2000/TZ Mode D'emploi

50/80
100
150/200
≥250
b) In Service
DN Oil vol. (cm
50/80
100
150/200
≥250
c) Recommended lubrication periodicity
Application
Dry gas, no dust
Gas comprising light condensates
and little dust
Gas with high percentage of
condensates and dust
BIOGAS applications

5.2. External silicagel cartridge

The meter can be equipped with an external silicagel cart-
ridge for installation in severe environment conditions. To
replace the cartridge, unscrew the old cartridge, remove
the protective plug of the new cartridge and screw it into
the totaliser.

5.3. Inspection and repair

The proper installation and functioning of the meter can
be verified by a visual control of the totaliser (to check that
the meter runs properly). It is possible to check the good
functioning of the Fluxi 2000/TZ by applying a spin test.
This test will give information about eventual friction in
the turbine ball bearings.
The test has to be conducted as follow:
– Accelerate the turbine wheel around 30 to 50% of Qmax
then to measure the time until the turbine wheel stops.
– Measure the spin time (ST) until the turbine wheel
stops.
See Annex 6 for typical values of spin time.
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 meter,
detailing the type of Gas that has been measured.
6
4 20
5 25
6 30
7 35
) Push
3
0,5 2-3
0,8 4
1,0 5
1,2 6
Lubrication
periodicity
6 months
Monthly
Weekly
• 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 that comply with the PED are used.
• The right spare parts are traced by providing the se-
rial number of the meter to Itron and/or by using the
Itron CD ROM "Spare parts catalogue".
• 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.