PFT levelling pin / Safety, overview, operation and service
Operation
4.3.6
Levelling ceilings
1. Bring the basic device to the maximum extension height by pulling
out the top part of the basic device and the intermediate stand tube
so that the values can be read on the probe at eye level.
2. The carrier rod is extended up to the ceiling by attaching the plug-in
stand, item no. 20230500.
3. Open the shut-off valves of the base tank at the top and bottom.
4. Bring the basic device to approx. the same height by moving the
top part of the basic device with the probe.
5. Open the self-closing valve on the probe.
6. Set the liquid column to a "round" number, preferably 0 = 100, by
moving the top part of the basic device and make a note of this.
In this way, ceiling soffits can be levelled in seconds by sampling with
the plug-in stand. Irrespective of uneven flooring.
NOTE
Highest measured point of the ceiling is the lowest reading
on the scale. Lowest measured point of the ceiling is the
highest reading on the scale.
Unevenness:
The difference between the highest and the lowest
number.
NOTE
The basic device must not be moved or adjusted in height
during a measurement cycle.
4.3.7
Venting
1
2
3
4
2
Figure 7: Opening shut-off valves
1. Open the shut-off valves (1) and the self-closing valve (2).
2. Bring the shut-off valves (1) and self-closing valve (2) to the same
level.
page 25 / 40
