WIKA 851 - Manual (Page 12)

GB
2435182.03 12/2010 GB/D/F/E
WIKA operating instructions electronic contact, model 830 E 12
6.3 Adjusting the set pointers
The setting of the set points is achieved using the adjustment lock in the
window with the aid of the adjustment key (part of the scope of delivery; found in
standard instruments on the side of the terminal box).
6. Commissioning, operation / 7. Maintenance and ...
Set pointer
Adjustment lock
The set pointers for the limit switches are freely adjustable over the full scale
range. For reasons of switching accuracy and long life of the mechanical
measuring systems, the switch points should be between 10 % and 90 % of the
measuring span.
7. Maintenance and cleaning
7.1 Maintenance
The instruments are maintenance-free.
The indicator and switching function should be checked once or twice every
year.
The instrument must be disconnected from the process to check the indication
and switching function with a pressure or temperature testing device.
Repairs must only be carried out by the manufacturer or appropriately qualified
skilled personnel.
7.2 Cleaning
CAUTION!
■ Prior to cleaning, disconnect the instrument from the mains.
■ Clean the instrument with a moist cloth (in soapy water).
■ Ensure that all the parts are dry before the power is switched on
again.
Removable
adjustment key