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, oper-
ation 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
turbine is proportional to the linear speed of the gas.
The movement is mechanically transmitted to the
totaliser through the magnetic coupling.Detailed
characteristics 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.
4
– The standard model of Fluxi 2000/TZ is designed
for use with clean and non-aggressive gases. For
use 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
120 200 300
Nm Nm Nm
Please tighten bolts in opposite pairs. Flange gas-
kets of adequate quality must be used.
– (4) To ensure accuracy, the meter has to be ins-
talled 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
installed 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 appro-
ved 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 star-
ting and operating to preserve the turbine wheel.
To prevent 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 me-
trology 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 respec-
ting the following rules:
• Use preferably elbows pieces with large radius (≥5
DN) to be installed at the inlet of the meter.
M27 M30 M33 ≥ M36
400 550 700 1200
Nm Nm Nm Nm