10.4-42
Section 10: Calibrating the Model 9100: Resistance Function
Final Width = 215mm
Table 10.4.7.3: Resistance — 'UUTi Low' Source Current Hardware Configurations and Calibration Points
Amplitude
Source Current
Output span
Output
Calibration Targets
Factor
covered by
to select
Number
hardware
hardware
configuration
config.
Default
Minimum
Maximum
Recommended
Minimum
Maximum
40.001
Ω
100
Ω
60.000
Ω
41.000
Ω
75.000
Ω
45.000
Ω
50
µ
A
200
µ
A
1
to 400.000
Ω
300.000
Ω
100.000
Ω
390.000
Ω
380.000
Ω
50
µ
A
200
µ
A
2
0.40001k
Ω
1k
Ω
0.60000k
Ω
0.41000k
Ω
0.75000k
Ω
0.45000k
Ω
50
µ
A
200
µ
A
1
to 4.00000k
Ω
3.00000k
Ω
1.00000k
Ω
3.90000k
Ω
3.80000k
Ω
50
µ
A
200
µ
A
2
4.0001k
Ω
10k
Ω
6.0000k
Ω
4.1000k
Ω
7.5000k
Ω
4.5000k
Ω
5.0
µ
A
20
µ
A
1
to 40.0000k
Ω
30.0000k
Ω
10.0000k
Ω
39.0000k
Ω
38.0000k
Ω
5.0
µ
A
20
µ
A
2
40.001k
Ω
100k
Ω
60.000k
Ω
41.000k
Ω
75.000k
Ω
45.000k
Ω
500nA
2.0
µ
A
1
to 400.000k
Ω
300.000k
Ω
100.000k
Ω
390.000k
Ω
380.000k
Ω
500nA
2.0
µ
A
2
0.40000M
Ω
1M
Ω
0.60000M
Ω
0.41000M
Ω
0.75000M
Ω
0.45000M
Ω
50nA
200nA
1
[2]
to 4.00000M
Ω
3.00000M
Ω
1.00000M
Ω
3.90000M
Ω
3.80000M
Ω
50nA
200nA
2
[2]
4.0001M
Ω
10M
Ω
6.0000M
Ω
4.1000M
Ω
7.5000M
Ω
4.5000M
Ω
5.0nA
20nA
1
[2]
to 40.0000M
Ω
30.0000M
Ω
10.0000M
Ω
39.0000M
Ω
38.0000M
Ω
5.0nA
20nA
2
[2]
40.001M
Ω
100M
Ω
60.000M
Ω
41.000M
Ω
75.000M
Ω
45.000M
Ω
5.0nA
20nA
1
[2]
to 400.000M
Ω
300.000M
Ω
100.000M
Ω
390.000M
Ω
380.000M
Ω
5.0nA
20nA
2
[2]
10.4.7.8
Calibration of 'UUTi Low' Source Current Hardware Configuration
If both UUTi High source current and UUTi Low source current hardware configurations are being calibrated, the UUTi Low source
current calibrations shown in Table 10.4.7.3 below should be performed after the UUTi High source current calibrations. (See
Note [2] below)
Notes:
[2] Calibration of these UUTi Low source current hardware configurations may be omitted if the Standards DMM has no suitable range, as
they are automatically calibrated by internal transfers, to an accuracy greater than that obtainable using the majority of DMMs, when the
corresponding UUTi High source current hardware configurations are calibrated. (When the 4M
Ω
UUTi High source current hardware
configuration is calibrated, the 4M
Ω
UUTi Low source current hardware configuration is automatically calibrated. When the 40M
Ω
UUTi
High source current hardware configuration is calibrated, the 40M
Ω
and 400M
Ω
UUTi Low source current hardware configurations are
automatically calibrated.)
If these UUTi Low source current hardware configurations are being calibrated against an external standard as detailed in the table above,
the calibration operations must be performed after the corresponding UUTi High source current hardware configurations have been
calibrated. Otherwise the calibration correction factors produced will be overwritten by those generated automatically by the UUTi High
source current calibrations.