Power Supply Unit; Start-Up Operation; Expansion Modules - Diehl Metering Sharky 775 Instrucciones De Montaje

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5.2 Power supply unit

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24 VAC or 230 AC power supply units can be changed or retrofitted
at any time.
It is strictly necessary to have protective safety cover installed at
all times.
Under no circumstances connect between the two phases other-
wise the power supply unit will be destroyed.
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The conduit is to be fused at max. 6 A and protected against manip-
ulation.
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The power supply unit notifies the meter if mains voltage is present.
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If the power supply fails, the backup battery (CR2032) provides the
power supply for up to 1 year. The LCD readings (on pressing button)
and the date and time are still updated, but none of the measur-
ing functions work, incl. the flow rate measurement. Communication
still functions over the optional M-Bus, RS485, RS232 modules or the
optical interface, but reduces the life of the backup battery. The radio
function is switched off in the event of power supply failure.
6.

Start-up operation

Once the meter has been installed, the components (calculator, volume
measuring component and both temperature sensors) must be sealed and
the meter taken into operation.
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Check the display for a plausible indication of flow rate and temper-
atures.
User guide for further Information is available at http://www.diehl.com/
en/diehl-metering/products-solutions/product-download/
7.

Expansion modules

The energy meter has two slots for expansion modules.
They can be mixed, but two pulse modules of the same kind must not be
installed.
The analogue module occupies both positions.
These modules have no effect on consumption recording and can be fitted
retrospectively without damaging the verification mark.
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