Dc Voltage Function; Linearity Test; Ac Voltage Performance Tests; Ac Voltage Function Gain Test - HP 3457A Service Manual

Performance Tests
DC Voltage Performance Tests Cont'd
4-18. DC Voltage Function
-
Linearity Test
4-19 Equipment Required.
A
D C Voltage Standard capable of providing
1 V, 2 V
and 3
V (+
.0006°/0) is
required f o r this procedure.
1. Set the H P 3457A t o the 3 V range.
2. Set the Voltage Standard t o 3 V, 2 V and
1
V. Use the Test Record t o record the 3 V, 2 V a n d
1 V readings.
3. Reverse the leads a t the Input Terminals of the H P 3457A t o provide a negative input voltage.
4. Set the Voltage Standard t o 1 V, 2 V and 3 V. Use the Test Record t o record t h e -1 V, -2 V and
-3 V readings.
6. If any o f the linearity readings are beyond the limits specified, refer t o Section V f o r calibration
procedures. If the problem can not be corrected with calibration, refer t o Section VIII f o r
tro~tbleshooting information.
7. Disconnect the D C Voltage Standard f r o m the H P 3457A Input Terminals.
AC Voltage Performance Tests
Figure 4-2. ACV Performance Test Connections
I
t
I
%
W d
@
I W Z S O V
I @ '
W Y
& - w e
4-20. AC Voltage Function
-
Gain Test
AC
VOLTAGE
SOURCE
4-21. Equipment Required. An AC Signal Source capable of providing sine-wave voltages o f 30 mV,
300 mV, 1 V, 2 V, 3 V, 30 V and 300 V
(f
0.1%) a t a frequency of 1 KHz is required f o r the following
procedure.
L
1. Set the output of the AC Signal Source f o r an output voltage of 30 mV a t a frequency o f 1 KHz
and connect it t o the H P 3457A f r o n t panel HI and LO input terminals.