Performance Verification
1-9
AC peak mode
1. Turn on the Model 2001, calibrator, and amplifier, and
allow a one-hour warm-up period before making mea-
surements.
2. Connect the Model 2001 to the calibrator, as shown in
Figure 1-2. Be sure to connect the amplifier HI to Model
2001 INPUT HI, and amplifier LO to Model 2001 IN-
PUT LO as shown. Connect the power amplifier to the
calibrator using the appropriate connector on the rear of
the calibrator.
3. Restore Model 2001 factory default conditions, as ex-
plained in paragraph 1.7.
4. Select the ACV function and the 200mV range on the
Model 2001, and make sure that REL is disabled.
NOTE
Do not use REL to null offsets when per-
forming AC volts tests. Use AC coupling
for 5kHz-1MHz tests. Use AC+DC cou-
pling for 20Hz tests. (Use CONFIG-ACV
to set coupling.)
5. Select the AC peak and filter modes as follows:
A. Press CONFIG then ACV, select AC-TYPE, then
press ENTER.
B. Select PEAK, then press ENTER.
Table 1-4
Limits for low-frequency mode AC voltage verification
2001 ACV
range
Applied
voltage
Allowable readings
(1 year, 18° to 28°C)
10Hz
50Hz
100Hz
200mV
2V
20V
200V
750V
190mV
1.9V
19V
190V
750V
189.837mV
to
190.163mV
1.89837V
to
1.90163V
18.9818V
to
19.0182V
189.811V
to
190.189V
—
189.875mV
to
190.125mV
1.89875V
to
1.90125V
18.9856V
to
19.0144V
189.849V
to
190.151V
748.72V
to
751.28V
189.875mV
to
190.125mV
1.89875V
to
1.90125V
18.9856V
to
19.0144V
189.849V
to
190.151V
748.72V
to
751.28V
NOTE: Specifications above 100Hz are the same as normal mode. Limits shown do not include
calibrator uncertainty.
C. Select FILTER, then press ENTER.
D. Select AVERAGING, then press ENTER.
E. Using the cursor and range keys, set the averaging
parameter to 10 readings, then press ENTER.
F. Press EXIT as necessary to return to normal display.
G. If the FLT annunciator is off, press FILTER to en-
able the filter.
6. Set the calibrator output to 100.000mVAC at a frequen-
cy of 5kHz, and allow the reading to settle.
7. Verify that the Model 2001 reading is within the limits
summarized in Table 1-5.
8. Repeat steps 6 and 7 for 100mVAC at the remaining fre-
quencies listed in the table.
9. Repeat steps 6 through 8 for the 2V, 20V, 200V, and
750VAC ranges, using the input voltages and limits stat-
ed in Table 1-5.
CAUTION
Do not apply more than 400V at 50kHz,
80V at 250kHz, 40V at 500kHz, or 20V
at 1MHz, or instrument damage may
occur.
10. Set input coupling to AC+DC, then repeat the procedure
for a 20Hz input signal.