MKS PR 4000 F, Instruction Manual

Page: 36 / 69

Chapter 4: Operation PR4000F
28
Linearization
(extra window for channel 1 and channel 2)
The PR4000F offers the possibility to correct known the non-linearity of each transducer connected
to the instrument. This menu provides 11 correction points P0 – P10 for each channel. With the
values S0 – S 10 you can determine how many calibration points shall be used.
Example for a pressure transducer, 1 mbar full scale. The 6 point calibration data sheet lists the
known deviation:
Cal. Point Pressure (mbar) Baratron Reading
(mbar)
0 0,000 0,000
1 0,1051 0,1048
2 0,1996 0,2004
3....5 ........ .........
6 1,0137 1,0121
Then the settings for P and S for the correction point #2 would be:
The sequence of the correction points must be strong monotone. Linearization is done by linear
interpolation between two consecutive data points.
LIN1 P0 S0 mbar
00.000 <> 00.000
LIN1 P2 S6 mbar
0.1996 <> 0.2004