Dismounting, Return And Disposal - WIKA LGG serie Betriebsanleitung

7. Maintenance ... / 8. Dismounting, return and ...
Blow through with vapour (vapour applications)
Open drain valve
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Open the upper valve head partially in order to prevent the ball-check
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valve from closing
EN
Allow the vapour for cleaning to flow through the glass level gauge
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Close the drain valve and the upper valve head
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Recommission the glass level gauge as described in chapter 5.4
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"Commissioning"
Cleaning with medium (vapour applications)
Open the vent carefully and slowly until the pressure compensation
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with the environment is complete
Open the lower valve head partially in order to prevent the ball-check
■
valve from closing
Water is now pressed into the indicator body and removes the conta-
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mination
Close the vent and lower valve head
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Recommission the glass level gauge as described in chapter 5.4
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"Commissioning"

8. Dismounting, return and disposal

8.1 Dismounting
Only disconnect the measuring instrument once the system has been
depressurised!
24
WARNING!
Physical injuries and damage to property and the
environment through residual media
Residual media in the dismounted instrument can result in a
risk to persons, the environment and equipment.
▶
Clean the dismounted instrument, in order to protect
persons and the environment from exposure to residual
media, see chapter 7.3 "Cleaning".
Operating instructions glass level gauge, model LGG