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

• For diameter variations, use preferably concentric
convergent and divergent pieces; sudden chan-
ges must be avoided.
• 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 remo-
ved 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 operate. 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 stabilised in the meter, open gently the
downstream valve 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 coun-
ting of eventual 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 applicable on the output shaft as indica-
ted onto the device must be respected. When not
used, the protection 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
possible from dust in the environment.
• The meter must be taken in account in the light-
ning risk evaluation of the complete installation.
• Tools used for installing, removing or repairing the
meter on site must be appropriate for use in the
hazardous 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
given 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 perio-
dically 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)
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