User`s guide

23
34980A system specifications and characteristics
DMM accuracy ± (% of reading + % of range)
Includes measurement error, switching error, and transducer conversion error
Measurement including switch error
[1]
Function Range
[4]
Frequency, etc. 24 hour
[2,3]
90 days 1 year Temperature
Tcal ± 1°C Tcal ± 5°C Tcal ± 5°C coefficient/°C
>Tcal ± 5°C
DCvoltage 100.0000mV  0.0030+0.0035 0.0040+0.0040 0.0050+0.0040 0.0005+0.0005
(with34921A/22A/ 1.000000V  0.0020+0.0006 0.0030+0.0007 0.0040+0.0007 0.0005+0.0001
31A/32A)
[10] [11]
10.00000 V 0.0015 + 0.0004 0.0020 + 0.0005 0.0035 + 0.0005 0.0005 + 0.0001
Inputimpedance=Hi-Z 100.0000V  0.003+0.0006 0.0045+0.0006 0.0055+0.0006 0.0005+0.0001
10Vrangeandbelow 300.0000V  0.003+0.0020 0.0045+0.0030 0.0055+0.0030 0.0005+0.0003
TrueRMSAC Allrangesfrom       
voltage
[5]
 100.0000mV 3Hz-5Hz 1.00+0.03 1.00+0.04 1.00+0.04 0.100+0.004
to100.0000V 5Hz-10Hz 0.35+0.03 0.35+0.04 0.35+0.04 0.035+0.004
10 Hz-20 kHz 0.04 + 0.03 0.05 + 0.04 0.06 + 0.04 0.005 + 0.004
  20kHz-50kHz 0.10+0.05 0.11+0.05 0.12+0.05 0.011+0.005
  50kHz-100kHz 0.55+0.08 0.60+0.08 0.60+0.08 0.060+0.008
100 kHz-300 kHz
[6]
 4.00+0.50 4.00+0.50 4.00+0.50 0.20+0.02
 300.0000V 3Hz-5Hz 1.00+0.05 1.00+0.08 1.00+0.08 0.100+0.008
  5Hz-10Hz 0.35+0.05 0.35+0.08 0.35+0.08 0.035+0.008
  10Hz-20kHz 0.04+0.05 0.05+0.08 0.06+0.08 0.005+0.008
  20kHz-50kHz 0.10+0.10 0.11+0.12 0.12+0.12 0.011+0.012
  50kHz-100kHz 0.55+0.20 0.60+0.20 0.60+0.20 0.060+0.020
100 kHz-300 kHz
[6]
 4.00+1.25 4.00+1.25 4.00+1.25 0.20+0.05
Resistance
[7]
 100.0000Ω 1mA 0.0030+0.0035 0.008+0.004 0.010+0.004 0.0006+0.0005
 1.000000kΩ 1mA 0.0020+0.0006 0.008+0.001 0.010+0.001 0.0006+0.0001
 10.00000kΩ 100uA 0.0020 + 0.0005 0.008 + 0.001 0.010 + 0.001 0.0006 + 0.0001
 100.0000kΩ 10uA 0.0020+0.0005 0.008+0.001 0.010+0.001 0.0006+0.0001
 1.000000MΩ 5.0uA 0.002+0.001 0.008+0.001 0.010+0.001 0.0010+0.0002
 10.00000MΩ 500nA 0.015+0.001 0.020+0.001 0.040+0.001 0.0030+0.0004
 100.0000MΩ 500nA/10MΩ 0.300+0.010 0.800+0.010 0.800+0.010 0.1500+0.0002
Frequency and 100 mV to 300 V 3 Hz-5 Hz 0.10 0.10 0.10 0.005
period
[8]
5 Hz-10 Hz 0.05 0.05 0.05 0.005
10 Hz-40 Hz 0.03 0.03 0.03 0.001
40 Hz-300 kHz 0.006 0.01 0.01 0.001
DCcurrent 10.00000mA <0.1Vburdentyp. 0.005+0.010 0.030+0.020 0.050+0.020 0.002+0.0020
(34921 only) 100.0000 mA < 0.6 V 0.010 + 0.004 0.030 + 0.005 0.050 + 0.005 0.002 + 0.0005
 1.000000A <2V 0.050+0.006 0.080+0.010 0.100+0.010 0.005+0.0010
TrueRMSACcurrent 10.00000mA 3Hz-5Hz 1.00+0.04 1.00+0.04 1.00+0.04 0.100+0.006
(34921A only) and
[5]
 5Hz-10Hz 0.30+0.04 0.30+0.04 0.30+0.04 0.035+0.006
1.0 A 10 Hz-5 kHz 0.10 + 0.04 0.10 + 0.04 0.10 + 0.04 0.015 + 0.006
100.0000 mA
[9]
 3Hz-5Hz 1.00+0.5 1.00+0.5 1.00+0.5 0.100+0.006
  5Hz-10Hz 0.30+0.5 0.30+0.5 0.30+0.5 0.035+0.006
  10Hz-5kHz 0.10+0.5 0.10+0.5 0.10+0.5 0.015+0.006
[1] One hour warm-up and a fixed configuration
with slow AC filter, sine wave input, and 6
1
/
2
digits. Temperature within ± 5°C of temper-
ature at calibration (Tcal between 18-28°C)
[2] 90 minute warm-up and a fixed configuration
and 6
1
/
2
digits. Temperature within ± 1°C of
temperature at calibration (Tcal between
18-28°C)
[3] Relativetocalibrationstandards
[4] 20%overrangeonallrangesexcept
300VDC and AC ranges and 1 ADC and AC
current ranges
[5] Forsinewaveinput>5%ofrange;for
inputsfrom1%to5%ofrangeand<50kHz
add0.1%ofrangeadditionalerror;
for AC filter slow
[6] Typically30%ofreadingerrorat1MHz,
limited to 1 x 10
8
volt-hertz
[7] Accuracyfor4-wireohms.Add4ohms
uncertainty (typ) for 2-wire ohms function
due to conductor and contact resistance
variability in the DMM. The 2-wire resistance
accuracy can be improved by measuring a
short on each channel and using the built-
iny=Mx+bscalingfunction.SeeUser
Guide, Chapter 3. The series resistance of
the 34923/24/25/33/34 limits the use of the
100 ohms resistance range. Agilent recom-
mends the use of 4-wire ohms for resistance
measurements. For high accuracy voltage
measurements, select the DMM input resis-
tancesettingof>10Gohmstominimizethe
impact of relay contact resistance.
[8] Forinputs>100mV;forinputs10mVto
100mVmultiply%ofreadingerrorX10;
for 1 sec aperture (6
1
/
2
digits)
[9] Specifiedonlyforinputs>10mA.
For AC filter slow
[10] Add 50 uV error for 34923A/24A/33A and
7µVerrorforthe34925A
[11]VoltagemeasurementsusingFixed-Zinput
impedance for the 100 V and 300 V ranges.