Dc Current Performance Tests - HP 3457A Service Manual

Performance Tests
AC Voltage Performance Tests Cont'd
6. Set the HP 3457A t o the 3 volt range.
7. Use the Test Record t o record the 300 mV (3 V tenth-scale) readings a t 400 Hz, 6.5 KHz, 20 I<Hz,
100 KHz, 300 K H z and
I MHz.
8. Set the AC Voltage Standard f o r a n output voltage of 3 volts.
9. Use the Test Record t o record the 3 V readings a t 1 MHz, 300 KHz, 100 KHz, 20 KHz, 6.5KHz a n d
400 Hz.
10. Set the HP 3457A AC Bandwidth t o AC Slow. (Press the
SHIFT key, then the Configuration A. Use
the scroll key t o display ACBAND. Enter a number less than 400 and press the ENT key).
1
I . Use the Test Record t o record the 3 V readings at 100 Hz, 45 Hz and 20 Hz.
12. Set the AC Voltage Standard f o r a n output voltage of 300 mV.
13. Set the HP 3457A t o the 300 mV range.
14. Use the Test Record t o record the 300 mV readings a t 20 Hz, 45 Hz and 100 Hz.
15. Reduce the output of the AC Voltage Standard and disconnect it f r o m the H P 3457A input
terminals.
16. If any of the readings are beyond the limits specified in Table 4-4 and o n the Test Record, t h e in-
strument should be calibrated o r repaired. Refer t o Section V of this manual f o r calibration
procedures.
DC Current Performance Tests
Figure 4-3. DCI Performance Test Connections