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1
Perforated plate straightener
The opening angle of the reducing or expansion pieces which are installed up-
•
stream from the TME 400 turbine meter must not be more than 30°.
Note
If necessary, a screen must be installed before the inlet pipe of the meter for
protection of the turbine meter from foreign objects which may be present in
the gas flow. The screen can be, for example, a perforated plate/filter of
∅ 0.15 mm.
Danger
Protect the turbine meter from damage caused by high pressure changes
fluctuations in the flow, e.g. if the downstream pipeline system is filled or
blown off.
Danger
Welding on the line must only take place at a safe distance from the meter.
Extreme temperatures in the line near the meter can cause permanent dam-
age to the meter.
Danger
Establish all electrical connections between meters and amplifiers or flow
computers as specified in the installation manual. Ensure that the connec-
tions are intrinsically safe.
Manual TME400-VMF · EN11 · January 22nd, 2024
1 Introduction
27
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