Diehl CORONA E Guide D'installation page 24

4.2 Installing the meter
ƒ
Close the stop valves upstream and downstream of
the meter and depressurise the pipeline.
ƒ
Remove the spacer or fitted meter (a small amount of
water may escape).
ƒ
Remove old seals and clean sealing faces.
ƒ
Thinly grease sealing faces (use acid-free grease).
ƒ
Fit the newly supplied seals (the seals should not
intrude into the pipeline).
ƒ
Install the meter so that the flow direction matches
the arrow direction on the housing.
ƒ
Slowly open the stop valves in the flow and return.
ƒ
Check the compression fittings and meter for
leak-tightness.
ƒ
Turn the integrator to an easy-to-read position.
ƒ
Press the button on the meter to switch on the display.
ƒ
Fit lead seal to meter.
4.3 Changing the measurement insert (WE-
SAN E)
For approval purposes, a seal or sticker (user
seal) must be attached (between housing and
housing cover).
The meter tamper-evident seal must not be damaged!
A damaged seal will result in immediate invalidation of
the factory warranty and calibration/conformity.
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