Start Up; Installation With Only An Upstream Valve; Installation With Upstream And Downstream Valves; Installation With A By-Pass - ITRON Fluxi 2000/TZ Manual De Instrucciones

• F or diameter variations, use preferably con-
centric convergent and divergent pieces; sud-
den changes must be avoided.
• O bstacles such as thermowells must not pro-
trude in the pipe within 2 DN upstream of the
meter. Gaskets should be correctly centred
between the flanges and not protrude into the
pipe.
• T he 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 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 totali-
ser at any time, see Annex 3. The Cyble sensor
is a bounce-free transmitter. It allows also the
counting 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. Maxi-
mum torque applicable on the output shaft as
indicated onto the device must be respected.
When not used, the protection cap must re-
main in place.
Remarks about using the meter in potentially ha-
zardous areas (ATEX):
• P ulse transmitters must be connected to intrin-
sic safe circuits, according to EN 60079-11.
• C lean the meter head only with a cloth damped
with water.
• A ll exposed aluminium parts must be suitably
protected (using paint, varnish, etc) if a film of
rust is possible from dust in the environment.
• T he meter must be taken in account in the
lightning risk evaluation of the complete instal-
lation.
• T ools 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 re-
placement may differ from that during normal
meter operations.
• T he meter shall not be exposed to flame, ioni-
sing radiation, ultrasound or strong electroma-
gnetic 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 transmit-
ters is written on the nameplate of the meter.
Protection of sockets: When a transmitter is not
used, the plastic cap must remain screwed to pro-
tect 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 pe-
riodically 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:
5