Inficon ULTRATEST UL3000 Fab, Translation Of The Original Operating Instructions

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6 | Operation INFICON
66 / 140 UL3000-Fab-Operating-instructions-iina73en1-08-(1910)
6.3.8 Set external calibration leak
To use an external calibration leak for calibration, enter the leak rate of the calibration
leak.
ü
Operator or Supervisor rights
1 > Setup > Measurement > Calibration leak
2 Adopt the printed value and the associated unit from the calibration leak or
certificate.
Do not change the combination of the printed value and associated unit, even if
your device is otherwise set to other units!
3
Save .
See also
2
External calibration [
}
72]
6.3.9 Change pressure limits
Pressure limits for the vacuum mode.
Using this function the factory settings for the switching points between the vacuum
ranges MASSIVE, GROSS, FINE and ULTRA can be changed. This can be
necessary if the device is pumped down with gases other than air, such as Argon. The
reason for this is the gas type dependence of the internal Pirani pressure gauges.
By changing the preset switching point this can be compensated for. The pressure
signal of the gas type dependent inlet pressure indicator (Pirani) can deliver different
switching values after the adjustment of the sequence control of the device.
ü
Supervisor - rights
1
> Setup > Measurement > Pressure limits
ð
You can change the named pressure limits. Preset values see "Factory
settings [ } 31]".
MASSIVE -> GROSS
GROSS -> FINE
FINE -> ULTRA
2 Set up.
ð When argon is pumped with the device, the following settings different from
the factory settings should be used:
MASSIVE -> GROSS: 4 mbar
GROSS -> FINE: 1 mbar
FINE -> ULTRA: 0.2 mbar
3
Save .