Characteristics; Reception Of The Fluxi 2000/Tz; Packing; Storage - DRESSER FLUXI 2000/TZ Mode D'emploi

Keep this manual easily accessible for all users.
Please respect all national rules for installation, opera-
tion and service of gas meters.

1. Characteristics

Fluxi 2000/TZ meters are designed to measure gases of
the 1st, 2nd and 3rd gas families as specified in EN437
as well as various filtered, and non-corrosive gases.
Turbines gas meters are flow meters. The flow of gas
turns a turbine wheel and the rotating speed of the tur-
bine is proportional to the linear speed of the gas. The
movement is mechanically transmitted to the totaliser
through the magnetic coupling.Detailed characteris-
tics are given in Annex 5.
2. Reception of the Fluxi
2000/TZ

2.1. Packing

The meter, depending on the size is delivered in an
individual carton or on a wood pallet. The packaging
contains the plugs for the installed transmitters and the
lubricant when an oil pump is installed.

2.2. Storage

If the meter is not going to be used immediately, it
should be stored under cover in a clean, dry environ-
ment. The caps fitted at the inlet and the outlet pipe
must stay in place until installation. Storing tempera-
ture: -40°C to +70°C.

2.3. Handling

Meters should be handled with care. They must be
lifted only with belts around the main body or in the
eyelets.

3. Installation

3.1. General recommendations: See Annex
1 and the PED information in Annex 7.
– The standard model of Fluxi 2000/TZ is designed for
use with clean and non-aggressive gases. For use
4
with aggressive gases please contact Itron for special
versions.
– (1) Before installation, check visually that the meter
has not been damaged during transport.
– (2) Do NOT weld pipework with a meter installed.
– (3) The meter should be installed without stress in
the pipework. The flanges must be correctly lined up.
The tightening torque of the bolts must not exceed:
M16 M20 M24 M27
120 200 300 400
Nm Nm Nm Nm
Please tighten bolts in opposite pairs. Flange gaskets
of adequate quality must be used.
– (4) To ensure accuracy, the meter has to be installed
with an inlet straight pipe of 2 DN minimum, no
downstream restriction. See details in Annex 2.
– (5) If the meter is equipped with an oil pump, turn oil
tank according to the installation position.
– (6) Transmitters connection: Gas Meters are often in-
stalled in areas where there is a risk that Gas will be
present. Therefore, electrical connections to meters
need to be made with consideration of the use of Ex
marked equipment or otherwise approved circuits.
For plug assignment and pulse values refer to the
main nameplate.
– (7) Dirt particles may damage the turbine wheel
therefore the use of starting sieve and filter are re-
commended.
– (8) Pressure pulses must be avoided during starting
and operating to preserve the turbine wheel. To pre-
vent damage during starting, increase the pressure
slowly at less than 0,3 bar per second.

3.2. Recommended installation

Turbine meters are flow meters therefore their metro-
logy can be affected by disturbances existing in the
flow of gas.
The Fluxi 2000/TZ has been designed to have a low
sensitivity to flow disturbance. It can be installed with
a minimal straight upstream pipe length. No minimal
straight pipe is requested for the downstream pipe. See
all details in Annex 2.
An even better accuracy can be achieved by respecting
the following rules:
• Use preferably elbows pieces with large radius (≥5
DN) to be installed at the inlet of the meter.
• For diameter variations, use preferably concentric
convergent and divergent pieces; sudden changes
must be avoided.
M30 M33 ≥ M36
550 700 1200
Nm Nm Nm