Siemens SITRANS FUE950, Руководство по эксплуатации, Страница: 39 / 72

6
Operation (hardware)
FUE950 is supplied with only one control button.
In normal mode of operation display shows the cumulative energy, see section Menu
structure (Page 39).
6.1 General requirements
Start-up
Before starting up the energy meter, its compatibility with the flow sensor must be checked
through function control.
With respect to EN1434 diameter and length of temperature sensor cables must be the
same.
In applications with fix connected sensor pair, connection length must not be altered. It is not
allowed to wind the cable around pipes or to locate the equipment within a distance of 0.3 m
from source of high-frequency or clocked electromagnetic radiation.
Cable must be sealed after connection of flow sensor.
Functional test of calculator at installation location as well as connection of CE-marked flow
sensor with protection measures must be performed according to the installation and user
guide.
Operation conditions concerning the symmetrical installation of temperature sensors stated
in installation and user guide must be fulfilled in order to obtain high measuring accuracy.
In compliance with any existing national regulations only sensor pockets tested for
conformity with temperature sensors must be used.
Sensors in forward and return lines must fit right to bottom of sensor pockets.
Measurement repeatability stated by manufacturer will be obtained if further described
environmental conditions are present.
In case of deviating environmental conditions, energy meter has to be remounted regularly
for service.
SITRANS FUE950
Operating Instructions, 01/2010, SFIDK.PS.022.F4.02
37