Ac Voltage Function - Frequency Response Fest - HP 3457A Service Manual

AC Voltage Performance Tests Cont'd
2 2. Use the Test Record to record the 30 mV, 300 mV, 3 V, 30 V and 300 V full-scale readings begin-
ning with the 30 mV range.
3. Test the HP 3457A accuracy at one-tenth of full-scale on the 300 V, 30 V, 3 V and 300 mV ranges.
Set the HP 3457A to each range and the AC Signal Source to provide a voltage equal to one-tenth of
the full-scale value of the range selected. Use the Test Record to record the readings for each range.
4, If any of the gain readings are beyond the specified in Table 4-2 and on the Test Record, the
instrument should be calibrated or repaired. Refer to Section V of this manual for calibration
procedures.
5. Set the AC Voltage Standard for an output of 30 mV,
3457A Input | 3457 | 34578 90 day Limits
Input Freq. |Range |Set Up High Low
30 mv 1 kHz | 30 mv] acy 30.05020 mv 29.94980 mv
300 mv 1 kHz |300 mv] acy 300.5020 mv 299.4980 mv
Vv 1 kHz 3 ACV 1.002420 V 0.997580 Vv
2v 1 kHz 3 ACV 2.003720 v 1.996280 Vv
SV 1 kHz 3 ACV 3.005100 Vv 2.994900 V
30 Vv 1 kHz 30 Vv ACV 30.05020 v 29.94980 V
300 v 1 kHz |300 Vv ACV 300.6820 v 299.3180 V
me 30 Vv 1 kHz |300 Vv ACV 030.1690 V 029.8310 V
3 1 kHz 30 Vv ACV 03.01510 Vv 02.98490 V
300 mv 1 kHz 3 ACV 0.301510 V 0.298490 Vv
30 mv 1 kHz |300 mv] acy 030.1510 mv 029.8490 mv
Table 4-2. AC Gain Test Limits
4-22. AC Voltage Function - Frequency Response Test
VOLTAGE FREQUENCY
1MHz | 300KHz | 100KHz] 20KHz|6.5KH2|400Hz | 100Hz 4SHz 20Hz
30 mv | +- 10%] +- 2% > 6%] +- .3%[+- .B%]+- 3%
300 mv |+- 3% [+-
1% |+- .2%]+- 12%]
+- .2%]+- 12%] +-
.1%/ +> 3%] +- 23%
ae ++ 3% [#- 1% [+#- 12%] 4- 2%] 4- .2K%]4+- 2%] +- 21%] +- 23%) +> 23%
Table 4-3. AC Signal Source Voltage Accuracy Requirements
1. Set the AC Voltage Standard for an output voltage of 30 mV and connect it to the HP 3457A
& front panel HI and LO input terminals.