Tektronix, Inc. DMM4040, Technical Reference

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Introduction and Specifications
Electrical Specifications
1
AC Current
The following ac current specifications are for sinusoidal signals with amplitudes greater than 5 % of range. For inputs
from 1 % to 5 % of range, add an additional error of 0.1 % of range.
Input Protection ....................................................... Tool accessible 11 A/1000 V and 440 mA/1000 V fuses, limits of
400 mA continuous 550 mA for 2 minutes on, 1 minute off.
Measurement Method ............................................. ac-coupled true-rms, dc-coupled to the fuse and shunt (no blocking
capacitor)
AC Filter Bandwidth
Slow .................................................................... 3 Hz to 10 kHz
Medium ............................................................... 20 Hz to 10 kHz
Fast ..................................................................... 200 Hz to 10 kHz
Crest Factor Error (applies to non-sinusoidal waveforms only)
Maximum Crest Factor ....................................... 5:1 at full scale
Additional Crest Factor Errors (<100 Hz) ............ Crest factor 1-2, 0.05 % of full scale
Crest factor 2-3, 0.2 % of full scale
Crest factor 3-4, 0.4 % of full scale
Crest factor 4-5, 0.5 % of full scale
Input Characteristics
Range Resolution
Resolution
Shunt Resistance
(Ohms)
Burden Voltage
4½ Digits 5½ Digits 6½ Digits
100
µ
A
100.0000
µ
A
10 nA 1 nA 100 pA
100
Ω
<0.015 V
1 mA
1.000000 mA 100 nA 10 nA 1 nA
100
Ω
<0.15 V
10 mA 10.00000 mA
1
µ
A
100 nA 10 nA
1
Ω
<0.025 V
100 mA
100.0000 mA
10
µ
A 1
µ
A
100 nA
1
Ω
<0.25 V
400 mA
[3]
400.000 mA
100
µ
A 10
µ
A 1
µ
A 1
Ω
<0.50 V
1 A
[2]
1.000000 A
100
µ
A 10
µ
A 1
µ
A 0.01
Ω
<0.05 V
3 A
[1][2]
3.00000 A 1 mA 100
µ
A 10
µ
A 0.01
Ω
<0.05 V
10 A
[2]
10.00000 A 1 mA
100
µ
A 10
µ
A 0.01
Ω
<0.5 V
[1] Part of 10 A range
[2] Available at front panel connectors only
[3] 400 mA continuously; 550 mA for 2 minutes on, 1 minute off; maximum crest factor 3:1 at 400 mA
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