Fluke 5790B, Руководство по обслуживанию

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Calibration Adjustment and Verification
Calibration
3
3-15
Table 3-4. Calibration Steps in Calibration Adjustment
Step Name
Voltage to
Apply
Uncertainty of the
characterized
Source (µV/V)
Purpose of Calibration Step
Basic dc +2 V dc 3 Calibrates DACs and thermal sensor. (This
is the unscaled range)
Sensor turnover −2.0 -2 V dc 3 Corrects dc turnover error
Sensor tu0.7
Sensor turnover −0.7 +0.7 V dc
-0.7 V dc 5 Corrects turnover error of the RMS sensor
at minimum scale. After the -0.7 V step,
internally calibrates the range zeros
2.2 mV Positive dc
2.2 mV Negative dc +2 mV dc
-2 mV dc 1000 Establishes gain and dc offset for the
2.2 mV range
7 mV Positive dc
7 mV Negative dc +6 mV dc
-6 mV dc 350 Establishes gain and dc offset for the 7 mV
range
22 mV Positive dc
22 mV Negative dc +20 mV dc
-20 mV dc 100 Establishes gain and dc offset for the 22
mV range
70 mV Positive dc
70 mV Negative dc +60 mV dc
-60 mV dc 35 Establishes gain and dc offset for the 70
mV range
220 mV Positive dc
220 mV Negative dc +200 mV dc
-200 mV dc 10 Establishes gain and dc offset for the 220
mV range
700 mV Positive dc
700 mV Negative dc +600 mV dc
-600 mV dc 5 Establishes gain and dc offset for the 700
mV range
2.2 V Positive dc
2.2 V Negative dc +2 V dc
-2 V dc 3 Establishes gain and dc offset for the 2.2 V
range
7 V Positive dc
7 V Negative dc +6 V dc
-6 V dc 3 Establishes gain and dc offset for the 7 V
range
22 V Positive dc
22 V Negative dc +20 V dc
-20 V dc 3 Establishes gain and dc offset for the 22 V
range
70 V Positive dc
70 V Negative dc +60 V dc
-60 V dc 3 Establishes gain and dc offset for the 70 V
range
220 V Positive dc
220 V Negative dc +200 V dc
-200 V dc 3 Establishes gain and dc offset for the 220 V
range
700 V Positive dc
700 V Negative dc +600 V dc
-600 V dc 3 Establishes gain and dc offset for the 700 V
range
1000 V Positive dc
1000 V Negative dc +1000 V dc
-1000 V dc 3 Establishes gain and dc offset for the 1000
V range