Calibration limits
The calibration limits stated in this section have been calculated using only the 2600B one-year
accuracy specifications. They do not include test equipment uncertainty. If a particular measurement
falls outside the allowable range, recalculate new limits based both on the 2600B specifications and
corresponding test equipment specifications.
Source limit calculations
As an example of how verification limits are calculated, assume you are testing the 2601B, 2602B, or
2604B 6 V dc output range using a 5.4 V output value. Using the one-year accuracy specification for
5.4 V dc output of ± (0.02% of output + 1.8 mV offset), the calculated output limits are:
Output limits = 5.4 V ± [(5.4 V × 0.02%) + 1.8 mV]
Output limits = 5.4 V ± (0.00108 V + 0.0018 V)
Output limits = 5.4 V ± 0.00288 V
Output limits = 5.39712 V to 5.40288 V
Similarly, assume you are testing the Model 2611B, 2612B, 2614B, 2634B, 2635B, or 2636B 20 V dc
output range using an 18 V output value. Using the one-year accuracy specification for 18 V dc output
of ± (0.02% of output + 5 mV offset), the calculated output limits are:
Output limits = 18 V ± [(18 V × 0.02%) + 5 mV]
Output limits = 18 V ± (0.0036 V + 0.005 V)
Output limits = 18 V ± 0.0086 V
Output limits = 17.9914 V to 18.0086 V
Measurement limit calculations
Measurement limits are calculated in the same way as the source limits, except that the limits are
calculated with respect to the measurement of the external reference instrument.
Restoring factory defaults
Before performing the calibration procedures, restore the instrument to its factory defaults.
To restore the factory defaults:
1. Press the MENU key.
2. Scroll to the SETUP menu item, and then press the ENTER key.
3. Scroll to the RECALL menu item, and then press the ENTER key.
4. Scroll to the INTERNAL menu item, and then press the ENTER key.
5. Scroll to the FACTORY menu item.
6. Press the ENTER key to restore defaults.
To Next Page
Loading...
Need help?
General
