7 Servicing/Maintenance
24 of 34
KSB Leakage Sensor
1984.8/02-EN
7 Servicing/Maintenance
7.1 Safety regulations
The operator ensures that maintenance, inspection and installation are performed by
authorised, qualified specialist personnel who are thoroughly familiar with the
manual.
DANGER
Electric shock
Danger to life!
▷ De-energise the mains connections of all devices (e.g. pump, PumpDrive,
PumpMeter, leakage sensor).
▷ Ensure that the mains connections cannot be re-energised unintentionally.
Never use force when dismantling and reassembling the pump set.
NOTE
All maintenance work, service work and installation work can be carried out by KSB
Service or authorised workshops. For contact details please refer to the enclosed
"Addresses" booklet or visit "www.ksb.com/contact" on the Internet.
7.2 Maintenance/inspection
The KSB Leakage Sensor is essentially maintenance-free.
Carry out the functional test once per year as a minimum. (ðSection6.1,Page22)
When using a fluid that can lead to clogging of the drop capillary in the sensor
housing, regularly check the free passage of the drop capillary. This applies especially
to fluids handled containing solids and fluids handled liable to resinify or crystallise.
7.2.1 Cleaning the drop capillary
WARNING
Hot surface
Burns, scalding!
▷ Allow the pump set and sensor housing to cool down to ambient temperature.
Regularly check the free passage of the drop capillary in the sensor housing.
ü The mains connection has been de-energised and secured against being
energised.
1. Turn measuring instrument 690 (bullseye level) to remove it from the upper
sensor housing.
2. Insert a suitable long, thin cleaning tool (e.g. pipe cleaner or solid probe with a
diameter of 2.5mm maximum) approx. 2.5cm into the tapped hole of the
measuring instrument. Then pull it out again.
3. Repeat this process several times.
4. In the case of severe incrustation remove the upper sensor housing 105.1 and
clean it.
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