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34401A Datasheet, PDF (2/4 Pages) Keysight Technologies – 34401A Digital Multimeter
Accuracy Specifications ± (% of reading + % of range)1
Function
DC voltage
True rms
AC voltage4
Resistance7
DC current
True rms
AC current4
Frequency
or period8
Continuity
Diode test9
Range 3
Frequency,
etc.
24 Hour2
23°C ±1°C
90 Day
23°C ±5°C
100.0000 mV
1.000000 V
10.00000 V
100.0000 V
1000.000 V
100.0000 mV
1.000000 V
to 750.000 V
100.0000 Ω
1.000000 kΩ
10.00000 kΩ
100.0000 kΩ
1.000000 MΩ
10.00000 MΩ
100.0000 MΩ
10.00000 mA
100.0000 mA
1.000000 A
3.00000 A
1.000000 A
3.00000 A
100 mV to
750 V
1000.0 Ω
1.0000 V
0.0030 + 0.0030
0.0020 + 0.0006
0.0015 + 0.0004
0.0020 + 0.0006
0.0020 + 0.0006
3 Hz – 5 Hz
5 Hz – 10 Hz
10 Hz – 20 kHz
20 kHz – 50 kHz
50 kHz – 100 kHz
100 kHz – 300 kHz6
1.00 + 0.03
0.35 + 0.03
0.04 + 0.03
0.10 + 0.05
0.55 + 0.08
4.00 + 0.50
3 Hz – 5 Hz
5 Hz –10 Hz
10 Hz – 20 kHz
20 kHz – 50 kHz
50 kHz – 100 kHz5
100 kHz – 300 kHz6
1.00 + 0.02
0.35 + 0.02
0.04 + 0.02
0.10 + 0.04
0.55 + 0.08
4.00 + 0.50
1 mA Current Source
1 mA
100 µA
10 µA
5.0 µA
500 nA
500 nA || 10 MΩ
0.0030 + 0.0030
0.0020 + 0.0005
0.0020 + 0.0005
0.0020 + 0.0005
0.002 + 0.001
0.015 + 0.001
0.300 + 0.010
< 0.1 V Burden Voltage
< 0.6 V
< 1.0 V
< 2.0 V
0.005 + 0.010
0.010 + 0.004
0.050 + 0.006
0.100 + 0.020
3 Hz – 5 Hz
5 Hz – 10 Hz
10 Hz – 5 kHz
1.00 + 0.04
0.30 + 0.04
0.10 + 0.04
3 Hz – 5 Hz
5 Hz – 10 Hz
10 Hz – 5 kHz
1.10 + 0.06
0.35 + 0.06
0.15 + 0.06
3 Hz – 5 Hz
5 Hz – 10 Hz
10 Hz – 40 Hz
40 Hz – 300 kHz
0.10
0.05
0.03
0.006
1 mA test current 0.002 + 0.030
1 mA test current 0.002 + 0.010
0.0040 + 0.0035
0.0030 + 0.0007
0.0020 + 0.0005
0.0035 + 0.0006
0.0035 + 0.0010
1.00 + 0.04
0.35 + 0.04
0.05 + 0.04
0.11 + 0.05
0.60 + 0.08
4.00 + 0.50
1.00 + 0.03
0.35 + 0.03
0.05 + 0.03
0.11 + 0.05
0.60 + 0.08
4.00 + 0.50
0.008 + 0.004
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.020 + 0.001
0.800 + 0.010
0.030 + 0.020
0.030 + 0.005
0.080 + 0.010
0.120 + 0.020
1.00 + 0.04
0.30 + 0.04
0.10 + 0.04
1.10 + 0.06
0.35 + 0.06
0.15 + 0.06
0.10
0.05
0.03
0.01
0.008 + 0.030
0.008 + 0.020
1 Year
23°C ±5°C
0.0050 + 0.0035
0.0040 + 0.0007
0.0035 + 0.0005
0.0045 + 0.0006
0.0045 + 0.0010
1.00 + 0.04
0.35 + 0.04
0.06 + 0.04
0.12 + 0.04
0.60 + 0.08
4.00 + 0.50
1.00 + 0.03
0.35 + 0.03
0.06 + 0.03
0.12 + 0.04
0.60 + 0.08
4.00 + 0.50
0.010 + 0.004
0.010 + 0.001
0.010 + 0.001
0.010 + 0.001
0.010 + 0.001
0.040 + 0.001
0.800 + 0.010
0.050 + 0.020
0.050 + 0.005
0.100 + 0.010
0.120 + 0.020
1.00 + 0.04
0.30 + 0.04
0.10 + 0.04
1.10 + 0.06
0.35 + 0.06
0.15 + 0.06
0.10
0.05
0.03
0.01
0.010 + 0.030
0.010 + 0.020
Temperature Coefficient
0°C to -18°C
28°C to -55°C
0.0005 + 0.0005
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
0.100 + 0.004
0.035 + 0.004
0.005 + 0.004
0.011 + 0.005
0.060 + 0.008
0.20 + 0.02
0.100 + 0.003
0.035 + 0.003
0.005 + 0.003
0.011 + 0.005
0.060 + 0.008
0.20 + 0.02
0.0006 + 0.0005
0.0006 + 0.0001
0.0006 + 0.0001
0.0006 + 0.0001
0.0010 + 0.0002
0.0030 + 0.0004
0.1500 + 0.0002
0.0020 + 0.0020
0.0020 + 0.0005
0.0050 + 0.0010
0.005 + 0.0020
0.100 + 0.006
0.035 + 0.006
0.015 + 0.006
0.100 + 0.006
0.035 + 0.006
0.015 + 0.006
0.005
0.005
0.001
0.001
0.001 + 0.002
0.001 + 0.002
1 Specifications are for 1 hr warm-up and 61⁄2 digits, slow ac filter.
2 Relative to calibration standards.
3 20% over range on all ranges except 1000 Vdc and 750 Vac ranges.
4 For sinewave input > 5% of range. For inputs from 1% to 5% of range
and < 50 kHz, add 0.1% of range additional error.
5 750 V range limited to 100 kHz or 8 x 107 Volt-Hz.
6 Typically 30% of reading error at 1 MHz.
7 Specifications are for 4-wire ohms function or 2-wire ohms using Math Null.
Without Math Null, add 0.2 Ω additional error in 2-wire ohms function.
8 Input >100 mV. For 10 mV to 100 mV inputs multiply % of reading error x10.
9 Accuracy specifications are for the voltage measured at the input terminals
only. 1 mA test current is typical. Variation in the current source will create
some variation in the voltage drop across a diode junction.
254.4 mm
103.6 mm
212.6 mm
88.5 mm
374.0 mm
348.3 mm
2