Installing The Flow Sensor; Fitting The Temperature Sensor Pair - Diehl Metering SHARKY 774 Compact Instrucciones De Montaje

3.2 Installing the flow sensor

Mounting position / Position
ƒ
The meter can be installed in both horizontal and vertical pipe sec-
tions (see fig. I).
ƒ
We recommend installing the flow sensor in a tilted position, to trans-
port possible air bubbles from the circulation(see fig. II).
ƒ
Install the flow sensor so that the flow direction matches the arrow
direction on the sensor (see fig. III).
ƒ
Depending on the version, the flow sensor must be installed in flow
or return. The installation position is displayed in the info loop 3.4
(see "Information loop (3)" on page 32) and also by means of a
pictogram.
Flow
Please make sure that the flow sensor is always filled with water.
The meter measures only the energy of completely filled pipe-
lines. Otherwise a corresponding error message is shown in the
display.
The minimum system pressure to avoid cavitation is 1 bar.

3.3 Fitting the temperature sensor pair

The meter is only sold with separately approved temperature
sensor pairs of type Pt 500.
Handle the temperature sensor carefully!
The sensor cables are provided with coloured type plates:
ƒ
Red: sensor in the hot line
ƒ
Blue: sensor in the cold line
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