When To Adjust Calibrator Accuracy; Calibration Procedure - Fluke 5730A/03 Operator's Manual

5730A
Operators Manual

When to Adjust Calibrator Accuracy

Table 7-3 lists each external uncertainty limit of the standards, and the Calibrator
accuracy specifications that must be adjusted accordingly if that limit is exceeded.
As long as the external standards have the uncertainties listed in Table 7-3, when
performing artifact calibration, it is not necessary to adjust the Calibrator absolute
accuracy specifications in Chapter 1. However, if uncertainty of the in-house standard
exceeds the value in the table, some of the absolute accuracy specifications of the
Calibrator must be adjusted by the algebraic difference between the standard uncertainty
and the uncertainty limit listed in the Table 7-3. For example, if the dc voltage standard
has an uncertainty of ±2.5 ppm, then the absolute uncertainty specifications listed in the
Electrical Specifications tables above for dc volts, ac, volts, dc current, and ac current.
must all be increased by ±1 ppm.
Fluke
Standard
732B
742A-1
742A-10k

Calibration Procedure

Before this procedure is started, make sure the 5730A Calibrator is powered on and has
completed the appropriate warm-up period.
Follow this procedure to calibrate the main output functions:
1. Touch Setup Menu>Calibration. The calibration menu is shown.
2. If necessary, touch Temperature and enter the correct temperature (in degrees
3. Touch Run Artifact Cal to begin the procedure. The Calibrator prompts the user to
4. Connect the 732B to the Calibrator as shown in Figure 7-4.
7-10
Table 7-3. Standards for Calibration
Traceable Nominal
Quantity
Voltage 10 V
1 Ω
Resistance
Resistance 10 kΩ
Celsius) to update the ambient temperature.
see the manual for the correct connections.
Uncertainty
Value Limit
1.5 ppm
10 ppm
2 ppm
Specifications susceptible to
Uncertainty Limit
dc volts, ac volts,
dc current, ac current
1 Ω, 1.9 Ω
ac current, dc current
10 Ω to 100 MΩ