Witschi ProofMaster, Руководство по эксплуатации

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Use
17.10.2019 37 / 96
Prohibition
Never check a watch with a pressure greater than that
specified in the specifications!
The force exerted may damage the watch and, in the case of flexible
housings, even the movement.
Mandatory
Observe the table for the effect of force on the watch in
order not to apply too high a pressure!
See Effect of force on the watch [
}
Page 37] .
Specifications for test pressure value settings
Observe the following points to achieve optimum results:
• The pressure of the subsequent tests must always be greater than that
of the previous test.
• Perform the vacuum test first. The vacuum test can be used to identify
defects that cannot be detected by an overpressure test:
– Insufficient leak tightness of the housing base.
– Insufficient pressure of the battery cover on the seal.
• Only check watches for which a maximum water depth is specified, and
do not exceed this limit value. Observe the following rule: 10 m water
depth = 1 bar.
• Check wristwatches without special information at a maximum
pressure of 2 bar.
Effect of force on the
watch
Watch
size
Vacuum (bar) Pressure (bar)
(Dia. in
mm)
-0.2 -0.4 -0.7 1.0 2.0 5.0 10.0
< 20 5.9 N 12.7 N 21.6 N 31.4 N 61.8 N 154.0 N 307.9 N
< 28 11.8 N 24.5 N 42.4 N 60.8 N 120.6 N 302.0 N 604.1 N
< 36 19.6 N 40.2 N 69.6 N 100.0 N 200.1 N 499.2 N 998.3 N
Vacuum The ProofMaster can generate a maximum vacuum of 85% compared
to the ambient pressure. The maximum vacuum that can be generated
therefore varies depending on the height at which the ProofMaster is
operated.
The following table shows the maximum vacuum that can be generated
depending on the altitude:
Altitude (m) 0 500 1000 1500 2000
Maximum vacuum
that can be
generated (bar)
-0.85 -0.81 -0.76 -0.72 -0.68