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Installation and Operation Instructions
Turbine Gas Meter Type FMT-L / FMT-Lx / FMT-S / FMT-Q
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.
Operating temperature range from -40°C to +70°C.
Specific meter temperatures are shown on the typeplate
Only suitable for clean and dry gas
Meter can be installed in open air.
Avoid direct sunshine on the meter.
IP-classification of Index: IP67 when properly connected.
Electrical classification:
INSTRUCTIONS:
1) Check the meter for damage due to transportation and handling. The turbine wheel
should rotate freely.
2) Check the flow direction (arrow on body).
3) Check the position of the meter (indication on name plate):
H: horizontal only
V: vertical only
H/V: both horizontal and vertical
4) The piping on the inlet side of the meter must be clean (free of dirt, welding beads and
pipe scale). For new installations it is recommended to install a wire mesh screen or
cone filter (250 micron) for the first four to six weeks of operation. Remove the
protective caps and / or plastic sheeting.
5) Install the meter with a straight inlet section as shown in the picture ‘Type of
Disturbances’ further on in this manual. The inlet section must be made of straight pipe
with the same nominal diameter. The outlet section is at least 1xDN of the same
nominal diameter. For the FMT-Q the minimum straight inlet section is 5xDN. (Required
inlet sections are stated on the meter typeplate)
6) The flow through the meter must be free of pulsations and the meter must be free of
vibrations in order to avoid measuring errors.
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