User manual

Series 3700 System Switch/Multimeter Reference Manual Section 14: Verification
3700S-901-01 Rev. C / July 2008 14-9
Connect to the Fluke 5700A Calibrator
Description
Range
(V)
Test point
(V)
Lower limit (V)
Upper limit (V)
Verify DCV 300V
3.00E+02
3.00E+02
2.999862E+02
3.000138E+02
Verify DCV 300V
3.00E+02
1.50E+02
1.499922E+02
1.500078E+02
Verify DCV 300V
3.00E+02
0.00E+00
-1.800000E-03
1.800000E-03
Verify DCV 300V
3.00E+02
-1.50E+02
-1.500078E+02
-
1.499922E+02
Verify DCV 300V
3.00E+02
-3.00E+02
-3.000138E+02
-
2.999862E+02
Verifying AC voltage
Check AC voltage accuracy by applying accurate voltages from the AC voltage
calibrator to the Series 3700 analog backplane connector and verifying that the
displayed readings fall within specified limits.
CAUTION Do not exceed 300V peak between INPUT HI and INPUT LO, or
8 × 10
7
VHz input, because instrument damage may occur.
To verify AC voltage accuracy:
NOTE Use shielded, low-thermal connections when testing the 100mV and
1V ranges to avoid errors caused by noise or thermal effects. Connect
the shield to the calibrator‟s output LO terminal.
1. Connect the Series 3700 HI and LO INPUT pins to the DC voltage calibrator
as shown in "AC voltage verification" below.
2. Select the AC volts function.
3. Set the Series 3700 to the 100mV range. Make sure that REL is disabled.
4. Source AC voltages for each of the frequencies and ranges are summarized
in the ACV verification data (on page 14-10) table. For each setting, be sure
that the reading is within stated limits.
5. Repeat steps 3 and 4 for each item in the table.