WIKA A2G-05 - Manual (Page 11)

WIKA operating instructions air2guide model A2G-05 11
GB
40387565.02 10/2013 GB/D/F/E/I
7. Zero point adjustment
In general, the zero point should only be checked and adjusted after the
system has been depressurised.
Mechanical zero point
If there is a zero point deviation (in depressurised condition), the zero
point can be adjusted by turning the adjustment screw.
8. Options and accessories
Mark pointer
The mark pointer indicates the maximum allowable differential pressure
on the dial. It can be adjusted manually to the desired value.
Standard accessories
3 mounting screws
Measuring hose
Plastic, for inner diameter 4 or 6 mm, reels available at 25 m
9. Maintenance and cleaning
Eco differential pressure gauges are maintenance-free and offer long
service life provided they are handled and operated properly.
Clean the instruments with a moist cloth (soap water).
Repairs must only be carried out by the manufacturer or appropriately
qualified skilled personnel.
7. Zero point adjustment ... 9. Maintenance and cleaning