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2.
Calculator Installation
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Depending on the design and application (heat or cooling meter),
the calculator is installed in either the hot or cold line of the system.
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The programmed installation location is shown in the information loop.
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The flow sensor must be installed so that the direction of flow corre-
sponds to the direction of the arrow on the sensor.
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Calming sections are not necessary before and after the flow sensor, but
calming sections of 3xDN are recommended before the meter.
The meter can be installed in both horizontal and vertical pipe
sections, provided air bubbles cannot collect in the meter.
The flow sensor must always be filled with liquid.
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We recommend installing the flow sensor in a tilted position.
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The minimum system pressure must be 1 bar to avoid cavitation.
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Make sure the meter is installed sufficiently far away from possible
sources of electromagnetic interference (switches, electric motors,
fluorescent lamps etc.).
T: 5 ... 90 °C
T
> T
water
ambient
ƒ
For medium temperatures of 90 °C or more or if T
application as cooling meter or heat meter with cooling tariff), the
calculator must be removed from the meter and installed a sufficient
distance away from heat sources. A wall holder (supplied with meter)
or a spacer holder (optional) is available for this purpose.
-22-
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T: 5 ... 130 / 150 °C
T
< T
water
ambient
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< T
(for
water
ambient
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