D-System Operating Instructions
Hotset GmbH
–
Hueckstraße 16
–
58511 Lüdenscheid, Germany
–
+49 2351 4302 0
–
–
–
04/2021 RS
18
Maintenance and water quality
Make sure that the medium is clean in order to avoid deposits such as lime, rust and dirt in the
measuring module. The water flowing through should be free of suspended particles and meet
the following requirements:
Min.
–
Max.
Unit
pH value
6.5
–
9.5
-
Solid substances
free
mg/l
Electrical conductivity (20°C)
200 - 2000
µS/cm
Fe / Cu
0 - 1
mg/l
Total hardness
5 - 12
°dH
Using compressed air to clean or empty the measuring module can damage the measuring
components. Cleaning brushes or similar objects should also not be used to remove any
deposits. The individual components can only be cleaned carefully with a cloth once the
measuring module has been disassembled.
We recommend that you return the device to Hotset GmbH for maintenance and servicing.
Please contact us for this purpose:
Hotset GmbH
Hueckstraße 16
58511 Lüdenscheid / Germany
Office: +49 2351 4302-0
