Flowmeter SVTU-11B, Руководство по эксплуатации

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correctly repeat this operation while installing device on the object (the description of
operating modes is also given in Chapter 11).
10.3 While installing device on the real object it is necessary to fill with water the
pipeline with installed flow measurement section. Run through FS the water with increased
volumetric flow rate during 10 minutes. Be convinced of no leakage in places, where meter
components are installed, and no error messages on the digital display of the calculator. The
list of these messages is resulted in Chapter 13.
10.4 Accomplish mentioned hereinafter actions in «Setup» mode.
To login in "Setup" mode see instructions described in item 11.2.8, the order of menu
access in "Setup" mode is described in item 11.2.5, and also in Appendix D.
In "Setup" mode:
−
set hydraulic zero for the channel of volume measurement;
−
set a proper archiving format for the water volume data;
−
set «In account» account mode. At this time reset of all meter parameters for certain
calculating channel would be done.
For zero setting following actions should be done:
−
zero setting should be carried out not earlier than in 10 minutes after battery installa-
tion.
−
cut off a water flow, but FS should remain completely filled with water.
−
provide zero setting according to “Setup” menu item.
In case of failure or wrong zero setting the measurement error increases and can exceed
permissible value. Reset of device readings at its commissioning is blocked, if setting of hy-
draulic zero is not made. Detailed information about zero setting is given in Appendix M
“How to set hydraulic zero”.
If during meter startup its commissioning was not provided, a proper warning will be
displayed on the indicator.
After ending of the above-stated operations meters are ready for functioning.
WARNING!
−
While in service it is forbidden to disconnect sensors, to change arrangement of sen-
sors (to prevent such not authorized actions a mechanical socket sealing of all FlS, TS, PT
is stipulated), to switch off the calculator, to install meters on the pipeline with incomplete
(partial) water filling of FS or on the pipeline supplying the water in steam condition. In all
above-stated cases the water meter will register failure operating time, which is subtracted
from the time of water volume measurement. Power off time (time with disconnected bat-
tery) isn’t considered during failure operating and would be displayed in a mode
«Indication
of additional parameters» .
−
If the water was cut off for a long time (interheating period, repair of the system,
etc.) and it had led to occurrence of stagnations in the pipeline (drains, a rust, bubbles, etc.) it
is recommended to set the “Stop” mode and to provide the guaranteed absence of the water
in a flow measuring section.