INFICON CU1000 Control unit - Manual (Page 17)

Operation 17
6.2 Querying and setting parameters
The following chapter describes the parameters and functions of the CU1000 control
unit. You will find the parameters and functions of the mass spectrometer module you
can set using the control unit in the installation manual of the mass spectrometer
module.
The menu tree shows the access level needed for changing the parameters (factory
settings).
The parameters explained in this chapter are displayed as follows:
Path (based on Measuring view > Menu key > Main menu)
6.2.1 Display settings
D ISPLAY > Q( T ) AXIS
D ISPLAY > T IME AXIS
D ISPLAY > D ISPLAY LIMITS
D ISPLAY > U NITS ( DISPLAY )
Parameter Description
Settings
Explanation of the settings (as needed)
Linear or logarithmic Linear or logarithmic Q(t) axis
Lin., Log.
Decades Number of decades of the Q(t) axis
(for logarithmic view)
1, 2, 3, 4
Automatic scaling Automatic scaling of the Q(t) axis
Off, On
Time axis scale Scaling of the time axis
15 s, 30 s, 60 s, 120 s, 240 s, 480 s, 960 s
Displ. upper limit
exponent Maximum value of the exponent of the Q(t) axis
-12 … -1
Displ. lower limit
exponent Minimum value of the exponent of the Q(t) axis
-12 … -1
Leak rate unit
VAC Unit of the leakage rate in vacuum mode
mbar·l/s, Pa·m³/s, atm·cc/s, Torr·l/s
Leak rate unit
SNIFF Unit of the leakage rate in sniff mode
mbar·l/s, Pa·m³/s, atm·cc/s, Torr·l/s, ppm, g/a
Pressure unit Unit of pressure
mbar, Pa, atm, Torr