Elster Instromet RABO, Инструкция по эксплуатации

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Elster-Instromet
15
73021678d © Elster GmbH • All rights reserved • Subject to technical modification
English
13. Pressure Test Point
A straight male coupling in accordance with DIN 2353 is pre-fitted on the meter housing
for connection of a pressure sensor for instance.
The
pressure test point
is marked
p
m
and is designed for connection of d = 6 mm
steel tube in accordance with DIN EN 10305-1 (e.g. steel grade E 235).
Important: Do not connect the straight male coupling to pipes made of stainless
steel or pipes made of nonferrous materials.
Note: We recommend that you use original Parker-Ermeto pipe unions only.
Functional safety and reliability are ensured only if the material combination of the
union component and the pipe are matched. We recommend that you contact our
Elster-Instromet Customer Service (Tel. +49 (0)6134-605-0 /-346) for conversion
work and when installing additional devices.
14. Temperature Test Points
You can use a maximum of two temperature sensors
for measuring the gas temperature in the meter
housing.
Note that temperature measurement on measuring
systems in the open air may be influenced by the
ambient temperature. For this reason, the metering
elements outside the pipe should be adequately
insulated against ambient temperature influences. In
order to achieve optimum thermal conduction, also fill the thermowell(s) with a heat-
conductive fluid or paste.
If no temperature test points in the meter housing are planned, measure the
temperature in the pipe upstream of the rotary gas meter at a distance of up to
3 x DN.