Ac Voltage Function - Gain Test - HP 3457A Service Manual

c=
Performance Tests
3457A
DC Voltage Performance Tests Cont'd
4-18. DC Voltage Function - Linearity Test
4-19 Equipment Required. A DC Voltage Standard capable of providing | V, 2 V and 3 V (+ .0006%) is
required for this procedure.
1, Set the HP 3457A to the 3 V range.
2. Set the Voltage Standard to 3 V, 2 V and | V. Use the Test Record to record the 3 V, 2 V and
I V readings.
3. Reverse the leads at the Input Terminals of the HP 3457A to provide a negative input voltage.
4. Set the Voltage Standard to | V, 2 V and 3 V. Use the Test Record to record the -1 V, -2 V and
-3 V readings.
6. If any of the linearity readings are beyond the limits specified, refer to Section V for calibration
procedures. If the problem can not be corrected with calibration, refer to Section VIII for
troubleshooting information.
7, Disconnect the DC Voltage Standard from the HP 3457A Input Terminals.
AC Voltage Performance Tests
wom fe
Y= =
O)"{Qh
| OO) AC
VOLTAGE
SOURCE
Figure 4-2. ACV Performance Test Connections
4-20. AC Voltage Function - Gain Test
4-21. Equipment Required. An AC Signal Source capable of providing sine-wave voltages of 30 mV,
300 mV, | V, 2 V, 3 V, 30 V and 300 V (+ 0.1%) at a frequency of 1 KHz is required for the following
procedure.
4-4
1. Set the output of the AC Signal Source for an output voltage of 30 mV at a frequency of 1 KHz
and connect it to the HP 3457A front panel HI and LO input terminals.