WIKA PGS23.063 - Manual (Page 14)

WIKA operating instructions model 232.3x.063 with 851 per ATEX 14
GB
11041781.03 03/2011 GB/D/F/E
8. Maintenance and cleaning / 9. Disposal
8. Maintenance and cleaning
The instruments are maintenance-free.
The indicator and switching function should be checked once or twice every
year. For this the instrument must be disconnected from the process to
check with a pressure testing device.
Repairs must only be carried out by the manufacturer or appropriately
qualified personnel.
Clean the instruments with a moist cloth (soap water).
Prior to cleaning, disconnect the instruments from the mains. Ensure that all
the parts are dry before the power is switched on again.
Residual media in dismounted pressure gauges can result in a risk to
persons, the environment and equipment. Take sufficient precautionary
measures.
9. Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an
environmentally compatible way and in accordance with the country-
specific waste disposal regulations.