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1. Install the flow sensor so that the direction of the arrow on the sensor corresponds to the direction
of flow (Fig. T).
Fig. T
Direction of flow
1 Arrow
indicating
direction
2
Direction of flow
2. Ensure that the flow sensor is always filled with water. The meter only measures the energy if the
pipes are completely filled, otherwise a corresponding error message is shown in the display.
6.1.2 Installing the calculator
Make sure the calculator is sufficiently far away from possible sources of electromagnetic
interference (switches, electric motors, fluorescent lamps, etc.).
Installation at medium temperature < 90 °C or at T
Water
> T
Ambient
: Install the calculator on the flow
sensor (Fig. U).
Fig. U
Calculator installed on the flow sensor
Installation at medium temperature > 90 °C or at T
Water
< T
Ambient
(application as cooling meter or
heat meter with cooling tariff). Install the calculator remotely at a sufficient distance away from heat
sources (Fig. V, page 29), e.g. on the wall (Fig. W, page 29). A wall mounting adapter (Fig. W,
item 1, page 29, supplied with meter) or a spacer holder (Fig. X, page 29, optional) is available for
this purpose.