Gas Typ Correction (Gas Type); Gas Type Correction Factor (Correction Factor); Emission Switching On And Switching Off Type (Emission) - LEYBOLD GRAPHIX ONE Instruction Manual

7.1.5

Gas Typ Correction (Gas Type)

The sensors are normally calibrated for a measurement in nitrogen or air. With the aid of the
parameter Gas type correction (Gas Type), you may set up the measurement channel for
other types of gas.
N2
Nitrogen, no correction is necessary. No status indicator will come on.
Ar
Argon. The pressure is converted with the aid of the correction factor for argon (0.830). The
status indicator
H2
Hydrogen. The pressure is converted with the aid of the correction factor for hydrogen
(2.440). The status indicator
Cor
Other gases. The pressure is converted with the aid of a variable correction factor. The
status indicator
type correction factor through the parameter Gas type correction factor (Correction factor)
is possible.
7.1.6

Gas Type Correction Factor (Correction Factor)

This parameter can only be changed when the gas type correction has been set to Cor
Chapter 7.1.5 Gas Typ Correction (Gas Type), page 69).
You may set up the gas type correction factor (correction factor) for a sensor in the range of
0.10 to 1.00 to 10.0. The setting of 1.00 will provide the uncorrected measured value.
NOTICE:
With IONIVAC sensors of ITR90 series and ITR200 series as well as
PENNINGVAC sensors of the type PTR82N, PTR90 and PTR90N the gas
type correction is only for p < 1·10
sensors of TTR100 series and TTR101 series only for p < 1 mbar.
7.1.7

Emission Switching On and Switching Off Type (Emission)

This parameter defines the rules according to which the emission is switched on.
Auto
Manual
Table 18 – Values for the parameter Emission
GA300550402_002_C1 – 10/2016
will come on in the display field of the selected channel.
will come on in the display field of the selected channel.
will come on in the display field of the selected channel. Entering a gas
Display
-2
mbar effectively, with THERMOVAC
Explanation
Automatic. The emission is switched on and off by
the sensor electronics.
Manual. The emission is switched on and off
manually.
(
69