HP 3457A Service Manual page 79

Operational Verification Tests
AC Voltage Operational Verification Tests
Figure 4-13. ACV Operational Verification Test Connections
4-70. AC Voltage Function - Gain Test
3457A
4-71, Equipment Required. An AC Signal Source capable of providing sine-wave voltages of 300 mV, 3 V,
and 30 V (+ 0.05%) at a frequency of | KHz is required for the following procedure.
1, Set the HP 3457A to the AC Voltage function (ACV).
2. Connect the AC Signal Source to the HP 3457A front panel HI and LO input terminals. Set the
Signal Source for an output voltage of 30 V at a frequency of 1 KHz.
3. Use the Test Record to record the 300 mV, 3 V and 30 V full-scale readings beginning with the
30 V range.
4. If any of the gain reading are beyond the limits specifies
3B457A Input |3457a | 34570 90 day limits
Input Freq. |Range | Set Up High Low
300 mv 1 kHz [300 mv] acy 300.5020 mv 299.4980 mv
3V 1 kHz 3.v |] acy 3.005100 v 2.994900 V
30 Vv 1 kuz | 30 Vv | acy 30.05020 v 29.94980 V
Table 4-22. AC Gain Test Limits
4-72. AC Voltage Function - Frequency Response Test
1 in Table 4-22 and on the Test Record,
the instrument should be calibrated or repaired. Refer to Section V for calibration procedures.
4-73. Equipment Required. An AC Signal Source capable of providing sine-wave voltages of 300 mV and
3 V (£.2%) at 20 KHz, 300 mV and 3 V (+.1%) at 100 Hz and 300 mV and 3 V (4.3%) at 20 Hz is required
for this test.
|. Connect the AC Signal Source to the HP 3457A front panel HI and LO input terminals. Set the AC
Voltage Standard for an output voltage of 300 mV at a Frequency of 20 KHz.