Model 4200A-SCS Parameter Analyzer Reference Manual
Appendix D: Using a Model 82 C-V System
4200A-901-01 Rev. C / February 2017
D-37
Details
The
DisplayCableCompCaps82
user module reads the nominal cable compensation values that
are stored in the compensation file and returns them to the calling function. In the case of Clarius, it
returns the values to the UTM data sheet.
The default parameters for this user module are shown in the following figure. Line 1 specifies the file
directory path where the capacitance values are saved. This file directory path must be the same as
the one used by the
SaveCableCompCaps82
user module.
Figure 606: DisplayCableCompCaps82 user module
To prevent unpredictable results, the array size values for the
RangeSize
,
Values100kSize
, and
Values1MSize
arrays must be set to 8.
For details on the procedure to perform cable compensation, refer to
The returned arrays are arranged in the order shown in the following table.
Reading_rate
valid inputs
Range
100 kHz values
1 MHz values
2E-12
2 pF low comp value
2 pF low comp value
2E-12
2 pF high comp value
2 pF high comp value
20E-12
20 pF low comp value
20 pF low comp value
20E-12
20 pF high comp value 20 pF high comp value
200E-12
200 pF low comp value 200 pF low comp value
200E-12
200 pF high comp
value
200 pF high comp value
2E-9
2 nF low comp value
2 nF low comp value
2E-9
2 nF high comp value
2 nF high comp value
If
CabCompFile
does not exist, or if there is no path specified (null string), the default compensation
parameters are used. When entering the path, be sure to use two
\
characters to separate each
directory. For example, if your cable file is in:
C:\calfiles\82cal.dat
You would enter:
C:\\calfiles\\82cal.dat
