Start Up; Installation With Only An Upstream Valve; Installation With Upstream And Downstream Valves; Installation With A By-Pass - DRESSER FLUXI 2000/TZ Mode D'emploi

• Obstacles such as thermowells must not protrude in
the pipe within 2 DN upstream of the meter. Gaskets
should be correctly centred between the flanges and
not protrude into the pipe.
• The built-in thermowells can be installed or removed
without requiring a calibration of the meter.

3.3. Start up

3.3.1. Installation with only an upstream valve

Open the valve very slowly until the meter starts to ope-
rate. Increase slowly the pressure in the downstream
pipe (max. 0,3 bar/second). When the downstream
pressure is stabilised, open the valve completely.
3.3.2. Installation with upstream and
downstream valves
Close the downstream valve. Open slowly the upstream
valve (max. 0,3 bar/second). When the pressure is sta-
bilised in the meter, open gently the downstream val-
ve to maintain the pressure in the meter and to avoid
overflow.

3.3.3. Installation with a by-pass

Close all valves. Slowly open the by-pass and wait until
the downstream pressure is stabilised. Then proceed as
§3.3.2. Close the bypass.
After start up, please check the pressure tightness of
the installation. Check also that the maximum flow rate
of the meter is not exceeded.
4.

Transmitters

The Fluxi 2000/TZ is equipped as standard with 2 Low
Frequency (LF), Reed switches and an anti-tampering
switch (AT).
Transmitters installed as option:
– Inductive medium (MF) or high frequencies (HF)
transmitters.
– A Cyble sensor can be installed onto the totaliser at
any time, see Annex 3. The Cyble sensor is a bounce-
free transmitter. It allows also the counting of even-
tual back flows.
– A mechanical drive designed according to EN 12661
can be fitted onto the totaliser, it may be used to
drive removable accessories. Maximum torque ap-
plicable on the output shaft as indicated onto the
device must be respected. When not used, the pro-
tection cap must remain in place.
Remarks about using the meter in potentially hazar-
dous areas (ATEX):
• Pulse transmitters must be connected to intrinsic
safe circuits, according to EN 60079-11.
• Clean the meter head only with a damp cloth.
• All exposed aluminium parts must be suitably pro-
tected (using paint, varnish, etc) if a film of rust is pos-
sible from dust in the environment.
• The meter must be taken in account in the lightning
risk evaluation of the complete installation.
• Tools used for installing, removing or repairing the
meter on site must be appropriate for use in the ha-
zardous area bearing in mind that the hazardous area
classification during meter replacement may differ
from that during normal meter operations.
• The meter shall not be exposed to flame, ionising
radiation, ultrasound or strong electromagnetic field.
Pulse values and maximum frequencies are given in
Annex 5.
Electrical characteristics and wiring of the socket are gi-
ven in Annex 4. The wiring of the transmitters is written
on the nameplate of the meter.
Protection of sockets: When a transmitter is not used,
the plastic cap must remain screwed to protect the
electric contacts of the socket.
5.

Maintenance

When properly installed and put into service, the Fluxi
2000/TZ needs no particular attention and will provide
you with many years of satisfactory service.

5.1. Lubrication

Meters equipped with an oil pump have to be periodi-
cally lubricated.
Oil is delivered with the meter. Specific oil has to be
used, for example:
– Aeroshell fluid 12 MIL6085A
– Isoflex PDP38 (Klüber)
– Anderol 401D (Mobil Oil)
– Univis P38 (Shell)
Quantity of oil to be filled:
a) On commissioning to fill the volume between the
pump and the bearings
DN Oil vol. (cm ) Push
3
5