Tests; Ac Voltage Function; Gain Test; Response Test - HP 3457A Service Manual

Operatio~lal Verifica~ion Tests
AC Voltage Operational Verification Tests
LAST
VOLTAGE
$ 1
Figure 4-13. ACV Operational Verification Test Connections
4-70. AC Voltage Function
-
Gain Test
4-71. Equipment Required. An AC Signal Source capable of pro\icling sine-wave voltages of 300 IIIV. 3 V,
and 30 V (+ 0.05'W~) at a frequency of 1 KHz is recluirccl for the following procedure.
1. Set the HP 3457A t o the AC Voltage ft~nction (ACV).
2. Connect the AC Signal S o ~ ~ r c e
lo
the H P 3457A f'ront panel
HI
and LO input terminals. Set the
Signal Source f o r an output voltage of 30 V at a frequency of 1 KHz.
3. Use the Test Record t o record the 300 mV, 3 V and 30 V full-scale readings beginning
v v i t l ~ the
30 V range.
4. If any of the gain readings are beyond the limits specified in Table 4-22 and on the Test Record,
the instrument slioultl be calibrated or repaired. Refer t o Section V for calibration procedures.
3 4 5 7 A
Range
3 4 5 7 A
S e t
U p
Table 4-22. AC Gain Test Limits
9 0 d a y l i m i t s
H i g h
[
Low
ACV
ACV
ACV
4-72. AC Voltage Function
-
Frequency Response Test
4-73. Equipment Required. An AC Signal S o ~ ~ r c e capable of providing sine-wave voltages
of
300 mV and
3
V (2.2%)) a t
20
I<{-lz, 300 mV and
3
V (&.I1%)) at 100 Hz and 300 rnV and 3 V (2.3%) a t 20 Hz is required
f o r this test.
3 0 0 . 5 0 2 0 m V
3 . 0 0 5 1 0 0 V
3 0 . 0 5 0 2 0 V
I . Connect the AC Signal Source to the H P 3457A f'ront panel HI and LO input terminals. Set the AC
Voltage Standard f o r an output voltage of 300
m V
at a frequency of 20 I<Hz.
2 9 9 . 4 9 8 0 m V
2 . 9 9 4 9 0 0 V
2 9 . 9 4 9 8 0
V