Installation and Commissioning
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Manual TRZ 04 · EN04 · February, 1st 2017
26
Notice
A protective screen should be installed on the intake side of the gas meter to
protect the turbine meter against any foreign particles possibly contained in
the gas flow. The protective screen can be a perforated plate of sheet metal
with a hole diameter of 3 mm which is available from RMG.
The p
m
tap which is located on the RMG turbine meter is the pressure-measuring point
which was used for taking the relevant pressure at measurement conditions during
meter proving. This pressure-measuring point is used for connecting pressure-
measuring instruments such as flow computers or volume correctors. Other connection
options (e.g. for temperature measurement) can be supplied on a pipe section on the
output side of the gas meter.
Danger
Protect the turbine meter from damage caused by heavy flow variations, e.g. if
the downstream pipeline system must be filled or blown off.
Danger
If it is necessary to do welding work on the gas line, such work can only be
performed at a safe distance from the gas meter.
Extreme temperatures
prevailing in the gas line in the proximity of the gas meter can result in a
permanent damage to the gas meter.
Danger
All electrical connections between the gas meter and the amplifiers or the flow
computer must be carried out in compliance with the installation instructions.
Make sure that these connections are intrinsically safe.
