WIKA Hydra-Gauge - Manual (Page 12)

12 WIKA operating instructions HYDRA-Gauge
9015329.01 08/2013 GB/D/F/E
GB
8. Maintenance and cleaning / 9. Dismounting and disposal
9. Dismounting and disposal
WARNING!
Residual media in dismounted instruments can result in a risk to persons, the
environment and equipment.
Take sufficient precautionary measures.
9.1 Dismounting
Only disconnect the pressure gauge once the system has been depressurised!
9.2 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.
8. Maintenance and cleaning
8.1 Maintenance
HYDRA-Gauge pressure measuring assemblies 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 switch-
ing function with a pressure testing device.
The HYDRA double diaphragm system prevents contamination of the process medium
even in case of mechanical damage of the wetted diaphragm. In this case the process
medium will penetrate the lateral leakage bore. The instrument must be exchanged as soon
as possible.
For safety reasons repairs of already installed instruments are not possible.
8.2 Cleaning
CAUTION!
■ The HYDRA-Gauge may only be cleaned by rinsing. Any mechanical
cleaning inside the process connection may damage the separating
diaphragms.
■ Clean the instrument with a moist cloth.
■ Electrical connections must not come into contact with moisture.