Fixed installation
If the VSM-02, in order to draw an analogy, is compared with electrical
measuring devices (of course the VSM-02 measures the consumption of
gases resp. liquids and
not electrical current!), then the mobile use of the VSM-02 would be similar
to using a multimeter, whereas the fixed installation of a VSM-02 would resemble
the use of a kilowatthour counter.
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Left:
similar to a multimeter, with a mobile VSM-02 one can measure the
actual consumption and several other actual
values. |
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Right: to
record the consumption precisely over
longer periods of time a kWh counter is needed, with
gases and liquids accordingly a permanently installed VSM-02. |
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The housing of the VSM-02 is already prepared for wall mounting.
The gas consumption can be read out with a resolution of 1 liter while the
display capacity reaches up to approx. 650 mio. cubic meters before the
counter restarts at zero. In case of power failure the last counter value
remains stored (EEPROM-technology, i.e. no backup batteries necessary,
data retention > 100 years).
With the remote query capabilities of the VSM-02 and a PC it is possible,
for example, to automatically record daytime
consumption profiles (see also software).
This even includes the possibility to identify the moment (virtually the
second) in which a certain consumer was switched on, which amount of gas
it consumed and much more. As a matter of course also the values of pressure,
temperature, density, time and so on can be protocolled together with the
standardized consumption values.
The measured values are exported as *.CSV-files ('comma
separated values'), which can easily be read and post-processed by
popular programs like MS-Excel, StarCalc and so on.
A practical example: with several permanently installed VSM-02 and the protocols
generated with that, a tunnel construction company was the only one who could offer
their customer a clear proof about the usage of compressed air.
This was absolutely decisive. The competitors, on the other hand, had nothing
to offer but the usual, unprecise estimations. If you, as a customer, had to pay
the total energy bill (namely for electricity which is needed to generate the
compressed air), you would also prefer an evidence whether the compressed air was
used reasonably rather than wasted, wouldn't you ?
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