Technical data

Gain Verification Test (AC V)
Configuration: AC volts
6
1
⁄
2
digit
AC FILTER slow (MEAS MENU)
1 Make sure you have read “Test Considerations” on page 64.
2 Select each function and range in the order shown below.
Compare measurement results to the appropriate test limits shown
in the table. (Be certain to allow for appropriate source settling.)
Caution The 50 kHz ac voltage test points may fail performance
verification if the internal shields have been removed and reinstalled.
See the “Gain Adjustment,” on page 79, for further information on how
to recalibrate the ac voltage function.
Input
(Front)
Input
Frequency
Quick
Check
34401A
Range
Error From Nominal
24 hour 90 day 1 year
10 mV
100 mV
100 mV
1 V
1 V
10 V
10 V
10 V
100 V
100 V
750 V
750 V [1]
1 kHz
1 kHz
50 kHz
1 kHz
50 kHz
1 kHz
50 kHz
10 Hz
1 kHz
50 kHz
1 kHz
50 kHz
Q
Q
Q
100 mV
100 mV
1 V
10 V
100 V
750 V
±34 µV
±70 µV
±150 µV
±600 µV
±1.4 mV
±6 mV
±14 mV
±6 mV
±60 mV
±140 mV
±450 mV
±1.05 V
±45 µV
±90 µV
±160 µV
±800 µV
±1.6 mV
±8 mV
±16 mV
±8 mV
±80 mV
±160 mV
±600 mV
±1.2 V
±46 µV
±100 µV
±170 µV
±900 µV
±1.7 mV
±9 mV
±17 mV
±9 mV
±90 mV
±170 mV
±675 mV
±1.275 V
[1] Some calibrators may have difficulty driving the multimeter and cable load at this
V-Hz output. Use short, low capacitance cable to reduce calibration loading.
Verification can be performed at >195 Vrms. New test limits can be computed from
the accuracy specification shown in chapter 1 for the actual test conditions used.
Q: Quick performance verification test points.
Chapter 4 Calibration Procedures
Gain Verification
70