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Maintenance and Care
Due to the small number of moving parts, these devices require minimal maintenance. Nev-
ertheless, regular performance tests and maintenance will not only increase the service life
and functional safety of the device but also those of the entire installation.
The frequency of maintenance depends on the following:
The contamination of the medium
•
Ambient conditions (e.g. vibrations)
•
•
When performing maintenance, be sure to check for the following:
Proper function of the switching contact (on devices with limit value signal sensors)
•
Leakage at the device
•
Free movement of the float
•
The user is responsible for setting suitable maintenance intervals for the specific application.
Maintenance Notes:
The free movement of the float can be checked by changing the flow rate and ob-
•
serving the float.
In most cases, cleaning the device will only require rinsing it with clean liquid. In stub-
•
born cases (e.g. lime deposits), standard, commercially available cleaners can be
used as long as their ingredients will not attack the materials used in the device.
Replacing the Measuring Tube:
Caution: To avoid glass breakage, the measuring tube must be installed centered between
the seals.
1. Close the valves upstream and downstream of the device to prevent escape of the
medium being measured.
2. Close the needle valve at the device.
3. Slide the Plexiglas protective cover upward and then remove it toward the front.
4. To release the measuring tube, turn the retainer in the base of the device counter-
clockwise. The tube can now be removed.
To reinstall the tube, follow the above instructions in reverse order.
DS10 Instruction manual 11/2021
page 11
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