Datasheet

Digital Multimeters — Tektronix DMM4020
Resistance
Specifications
are for 4-wire resistance function, or 2-wire resistance with REL. If
REL is not used, add 0.2 Ω for 2 -wire resistance plus lead resistance.
Characteristic
Description
Measurement Method
Current source referenced to LO input
Max Lead Resistance
(4-wire ohms)
10% of range per lead for 200 Ω,2kΩ ranges. 1 kΩ
per lead on all other ranges
Input Protection 1000 V on all ranges
Input Characteristics
ResolutionRange
Full Scale
(5½ Digits)
Slow
Medium Fast
Current Source
200 Ω 199.999 Ω 0.001 Ω 0.01 Ω 0.01 Ω
0.8 mA
2kΩ 1.99999 kΩ 0.01 Ω 0.1 Ω 0.1 Ω
0.8 mA
20 kΩ 19.9999 kΩ 0.1 Ω 1 Ω 1 Ω
0.08 mA
200 kΩ 199.999 kΩ 1 Ω 10 Ω 10 Ω
0.008 mA
2MΩ 1.99999 MΩ 10 Ω 100 Ω 100 Ω
0.9 μA
20 MΩ 19.9999 MΩ 100 Ω 1kΩ 1kΩ
0.16 μA
100 MΩ 100.000 MΩ 1kΩ 10 kΩ 10 kΩ 0.16 μA||10MΩ
Accuracy
Uncertai
nty*
3
90 days 1 year
Range
23 °C ±5 °
C
23 °C ±5 °
C
Temp erat
ure Coefficient/°C
Outside 1
8-28°C
200 Ω
0.02 + 0.004 0.03 + 0.004 0.003 + 0.0006
2kΩ
0.015 + 0.002 0.02 + 0.003 0.003 + 0.0005
20 kΩ
0.015 + 0.002 0.02 + 0.003 0.003 + 0.0005
200 kΩ
0.015 + 0.002 0.02 + 0.003 0.003 + 0.0005
2MΩ
0.03 + 0.003 0.04 + 0.004 0.004 + 0.0005
20 MΩ
0.2 + 0.003 0.25 + 0.003 0.01 + 0.0005
100 MΩ
1.5 + 0.004 1.75 + 0.004 0.2 + 0.0005
*
3
Uncertainty given as ±(% of reading + % of range).
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