KROHNE DK 46-47-48-800 EN - Manual (Page 22)

6
SERVICE
22
DK46 - DK800
www.krohne.com 05/2011 - 4000302403 MA DK46-800-R03-en
Service
6.1 Maintenance
Within the scope of routine maintenance of the system and pipings, the flowmeter should also be
inspected for signs of dirt, corrosion, mechanical wear and leaks, as well as damage to the
measuring device.
We advise that inspections be carried out at least once per year.
The device must be removed from the piping before cleaning.
CAUTION!
Pressurized pipes must be depressurized before removing the device.
In the case of devices used for measuring aggressive or hazardous media, appropriate safety
precautions must be taken with regard to residual liquids in the measuring unit.
Always use new gaskets when reinstalling the device in the pipings.
CAUTION!
The packing seal for the valve may have to be adjusted during the service life. The lock nut must
be tightened for this.
Apply a tightening torque of not more than 5 Nm.
CAUTION!
Valves that have not been used for a longer period of time may exhibit a higher actuating torque.
MA_DK46_800_R03_en_302403_PRT.book Page 22 Thursday, May 19, 2011 8:26 AM