WIKA 73 - Manual (Page 11)

GB
12099431.05 10/2010 GB/D/F/E
WIKA operating instructions models 73, 74, 75 11
If this is not possible, the following limit values must not be exceeded:
Dry gauges: Frequency range < 150 Hz
Acceleration < 0.7 g (7 m/s2)
Liquid-filled gauges: Frequency range < 150 Hz
Acceleration < 4 g (40 m/s2)
6. Commissioning, operation
After mounting, set the compensating valve (if
available) from CLOSE to OPEN.
The liquid filling must be checked on a regular basis.
The liquid level must not drop below 75 % of the gauge diameter.
Heavy shocks, oscillations and vibrations lead to imprecise values,
increased wear in the transmission mechanism, and fractures on
welded or soldered joints.
When mounting a gas actuated dial indicating thermometer that can
be rotated and swivelled, specific instructions must be followed. In
order to set the indicator to the desired position, the following steps
must be taken:
1. The lock nut or union nut must be loosened at the process
connection.
2. The hexagon bolts and slotted screws at the swivel joint must be
loosened.
loosening
Make sure to loosen the screws
on the opposite side as well!