Specifications
2
34980A Service Guide
27
Internal DMM Specifications and Characteristics
DC and Resistance Specifications
DMM accuracy ± (% of r % of range). Includes measurement error, switching error
[1]
,
and transducer conversion error.
[1]
One hour warm-up and a fixed configuration with slow AC filter, sine wave input, and 6½ digits.
Temperature within ±5 °C of temperature at calibration (Tcal between 18-28 °C).
[2]
90 minute warm-up and a fixed configuration and 6½ 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]
Accuracy for 4-wire ohms or 2-wire ohms with scaling to remove offset; add 4
additional error plus the lead wire resistance to the
2-wire ohms function without scaling. The 34921A and 34922A may have increased relay channel resistance, up to an additional
50
which can occur on modules that have been out of service or following relay inactivity for periods of greater than 1 week. Using
4-wire measurements or switching relays for 2k cycles prior to use typically corrects this problem.
[6]
Add 50
V error for 34923/24/33.
Function
Range
[4]
Test Current or
Burden Voltage
24 hour
[2,3]
Tcal ± 1
°
C
90 days
Tcal ± 5
°
C
1 year
Tcal ± 1
°
C
Temperature
coefficient
Tcal ± 5
°
C
DC voltage
(with 34921A/
22A/25A/31A/32A)
[6]
Input impedance = Hi-Z
10 V range and below
100.0000 mV
1.000000 V
10.00000 V
100.0000 V
300.0000 V
0.0030 +
0.0035
0.0020 +
0.0006
0.0015 +
0.0004
0.0030 +
0.0006
0.0030 +
0.0020
0.0040 +
0.0040
0.0030 +
0.0007
0.0020 +
0.0005
0.0045 +
0.0006
0.0045 +
0.0030
0.0050 +
0.0040
0.0040 +
0.0007
0.0035 +
0.0005
0.0055 +
0.0006
0.0055 +
0.0030
0.0005 +
0.0005
0.0005 +
0.0001
0.0005 +
0.0001
0.0005 +
0.0001
0.0005 +
0.0003
Resistance
[5]
100.0000
1.000000 k
10.00000 k
100.0000 k
1.000000
M
10.00000
M
100.0000
M
1mA
1mA
100
A
10
A
5.0
A
500nA
500nA/10M
0.0030 +
0.0035
0.0020 +
0.0006
0.0020 +
0.0005
0.0020 +
0.0005
0.002 + 0.001
0.015 + 0.001
0.300 + 0.010
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
0.010 + 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
0.0006 +
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
DC current
(34921
only)
10.00000 mA
100.0000 mA
1.000000 A
< 0.1 V burden
< 0.6V
< 2V
0.005 + 0.010
0.010 + 0.004
0.050 + 0.006
0.030 + 0.020
0.030 + 0.005
0.080 + 0.010
0.050 + 0.020
0.050 + 0.005
0.100 + 0.010
0.002 + 0.0020
0.002 + 0.0005
0.005 + 0.0010
深圳德标仪器
135-1095-0799
Summary of Contents for Agilent 34980A
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Page 26: ...10 34980A Service Guide 1 Obtaining Service 深圳德标仪器 135 1095 0799 ...
Page 60: ...44 34980A Service Guide 2 Specifications 深圳德标仪器 135 1095 0799 ...
Page 94: ...78 34980A Service Guide 3 Calibration Procedures 深圳德标仪器 135 1095 0799 ...
Page 150: ...134 34980A Service Guide 6 Replaceable Parts 深圳德标仪器 135 1095 0799 ...
