FMR 171/241/260 QA Installation and Operation Instructions – Page 1 of 20
EN
Installation and Operation Instructions
Rotary Gas Meter Type FMR 171/241/260
WARNING
If there remain any questions or remarks after reading these instructions,
please contact the supplier of this product. Before installing the gas meter
the international, national, as well as local and company regulations related
to this product should be known.
A more extensive manual of this gas meter is available on request.
ENVIRONMENTAL CONDITIONS OF THE METER:
Mechanical class M2 & Electromagnetic class E1
Max. Operating temperature range from -40°C to +70°C.
Meter can be installed in open air.
Avoid direct sunshine on the meter.
Minimal IP-classification of Index: IP54 (splash proof)
INSTRUCTIONS:
1)
Check the meter for damage due to transportation and handling. The rotors should
rotate freely.
2)
Check the flow direction, as indicated with an arrow on the Pm-
indication label on the meter. In case the flow direction is incorrect, this
can be changed to a reversed flow (horizontal, right to left) by turning
the index plate. For the positions of the Pressure and Temperature
connections see figure 4.
3)
The piping on the inlet side of the meter must be clean (free of dirt, welding beads
and pipe scale).
It is recommended to install a 100 micron filter upstream of the
meter. For new installations it is recommended to install a wire mesh screen (250
micron) for the first weeks of operation.
4)
The meter must be installed free of piping stress.
5)
Level the meter within 5mm/m side-to-side and front-to-back
6)
TIGHTEN THE FLANGE BOLTS CROSSWISE AND REGULARLY
(for the dimensions of the
flange bolts and the applied tightening torque on the different sizes see figure 3).
7)
The meter is shipped with empty oil reservoir.
Fill the oil reservoir at the front side of
the meter with the supplied oil to the indicated level (see figure 1). For a correct
II 2 G T4
