HP 3465B - Page 26

Model 3465B
Section V
SECTION V
MAINTENANCE
5-1. INTRODUCTION.
5-2. This section of the manual contains Performance Tests
and Adjustment Procedures. The Performance Tests are
designed to verify the critical specifications listed in Table
1-1. A Performance Test Card is at the end of this section
for recording the results of the performance tests.
5-3. Test Equipment Required.
5-4. Equipment required for the performance tests and
adjustment procedures is listed in Table 5-1, Recommended
Test Equipment. Equipment that satisfies the critical
specifications given in the table may be substituted for a
recommended model.
NOTE
Throughout the Performance Tests and Adjust
ment Procedures, the -hp- Model 3465B is
referred to as Multimeter.
5-5. PERFORMANCE TESTS.
5-6. OC Voltmeter Accuracy Test.
5-7. A DC Standard is required for this test.
a. Set the Multimeter function to DCV ( V) and
range to 20 M. Short the VS2 and COM terminals together
and adjust the display for 0.000, using the ZERO ADJ on
the rear panel.
b. Disconnect the short and connect the DC Standard
between the Vfl and COM terminals.
c. Check all the dc ranges listed in Table 5-2 for the
tolerances indicated.
Do not apply more than 1000 V, otherwise
damage to the instrument may result.
Table 5-2. DC Voltmeter Accuracy Test.
DC Range
DC Standard
Output
Multimeter
Display Limits
20 mV ± 0.00100 V
± 0.00500 V
+ 0.01000 V
.998 - 1.002 mV
4.996 - 5.004 mV
9.995 - 10.005 mV
200 mV
+ 0.01000 V
± 0.05000 V
+ 0.10000 V
9.99-10.01 mV
49.98 - 50.02 mV
99.97 - 100.03 mV
2 V ± 0.10000 V
± 0.50000 V
+ 1.00000 V
.0999 - .1001 V
.4998 - .5002 V
.9997 - 1.0003 V
20 V ± 1.00000 V
+ 5.00000 V
± 10.0000 V
.999 - 1.001 V
4.998 - 5.002 V
9.997 - 10.003 V
200 V ± 10.0000 V
± 50.0000 V
+ 100.000 V
999 - 10.01 V
49.98-50.02 V
99.97 - 100.03 V
1000 V ± 100.000 V
+ 500.000 V
+ 1000.00 V
99.8 - 1009 V
499.7 - 500.3 V
999.6- 1000.4 V
5-8. OC Ammeter Accuracy Test.
5-9. This test requires the use of a power supply, a DC
Differential Voltmeter and a precision resistor listed in
Table 5-3 (part numbers are given in Table 5-1) or a resistor
decade box.
a. Cormect the Multimeter and test equipment as shown
in Figure 5-1.
DIGITAL MULTIMETER
hp 3465
POWER SUPPLY
hp 6294A*
DC
DIFFERENTIAL
VOLTMETER
hp 740B*
OR EQUIVALENT
INPUT CABLE
hp II054A
Figure 5-1. DC Ammeter Accuracy Test.
5-1