8250A Optical Power Meter Operation Manual
7.4 Current Measurement Calibration Point and Allowable Range
7-4
7.4
Current Measurement Calibration Point and Allowable Range
To perform the calibration, use an instrument, which satisfies the required accuracy described in Section 7.1,
“Instrument, Cable, and Others Required for Calibration”, and adjust the current at the calibration point to
within the allowable range shown in the table below.
Table 7-3 Calibration Point and Allowable Range
Range
[ZERO]
[FS]
Calibration point
Allowable range
digits
Calibration point
Allowable range
digits
20 nA
0 A
10
19 nA
20
200 nA
4
190 nA
8
2
A
8
1.9
A
16
20
A
4
19
A
8
200
A
8
190
A
16
2 mA
4
1.9 mA
8
20 mA
8
19 mA
16
50 mA
4
50 mA
8
