Fluke 5790B/3 Operator's Manual page 216

5790A
Operators Manual
8. Check the end point accuracy of the vernier by setting the VERNIER dial to +3.00
9. Set the 5200A VOLTAGE ERROR-% switch to X1. The 5790A error display should
10. Check the other end point accuracy of the vernier by setting the VERNIER dial to -
11. Set the 5200A VOLTAGE ERROR-% switch to X1. The 5790A error display should
12. Return the 5200A VERNIER to 0.00 and the VOLTAGE ERROR-% switch to OFF.
Calibration Procedures
Starting on page 4-17 of the 5200A manual, the following procedures replace the Voltage
Amplitude/Linearity Calibration and Millivolt Amplitude Calibration.
Voltage Amplitude and Linearity Calibration
The following procedures deal with voltage amplitude and linearity for the 1V, 10V, and
100V ranges.
1. Install the inner covers and firmly secure for these tests.
2. Make the adjustments through the marked ports in the instrument compartment inner
3. Perform the tests in sequence ensuring that the Equipment Set-Up procedure has been
Low Frequency Zero and Gain Calibration.
Use the following procedure to perform the low frequency zero and gain calibration test:
1. Connect the equipment as shown in Figure F-2.
2. Set the 5200A output to 1V on the 10 V range and 1 kHz on the 1-kHz range.
3. Set the mode switch to OPER. The 5790A should read 1.000000 ±0.000050 V.
4. Adjust INT ZERO (R63, AC/DC Converter PCB) until the reading is within
5. Set the 5200A output to 10 V on the 10 V range and 1 kHz on the 1-kHz range. The
6. Adjust REF (R48, Reference PCB) until the reading is within tolerance.
7. Repeat steps 1 through 5 until both readings are within tolerance without adjustment.
100V Low Frequency Calibration
Use the following procedure to perform the 100 V low frequency calibration test:
1. Set the 5200A output to 100 V on the 100 V range and 1 kHz on the 1-kHz range.
2. Adjust 100 V (R9, Attenuator PCB) if necessary to give 100.0000 ±0.0050 V.
E-6
and the VOLTAGE ERROR-% switch to X1. The 5790A error display should read
between -2.9800 % and -3.0200 %.
read between -0.2980 % and -0.3020 %.
3.00 and the VOLTAGE ERROR-% switch to X1. The 5790A error display should
read between +2.9800 % and +3.0200 %.
read between +0.2980 % and +0.3020 %.
cover as shown in Figure F-6.
performed prior to starting the test.
tolerance.
5790A should read 10.00000 ±0.00050 V.