Fluke 8845A - Accuracy (8846 A); Additional Ohms Errors; DC Current; Input Characteristics

Introduction and Specifications
Electrical Specifications 1
Additional Ohms Errors
Digits NPLC Additional Noise Error
6½ 100 0 % of range
6½ 10 0 % of range
5½ 1 0.001 % of range
5½ 0.2
0.001 % of range ±20 mΩ
4½ 0.02
0.01 % of range ±20 mΩ
DC Current
Input Protection ....................................................Tool-accessible 11 A/1000 V and 440 mA/1000 V fuses
Common Mode Rejection..................................... 140 dB at 50 or 60 Hz ±0.1 % (1 kΩ unbalance)
Normal Mode Rejection........................................60 dB for NPLC of 1 or greater with dc filter off and power line
frequency ±0.1 %
100 dB for NPLC of 1 or greater with dc filter on and power line
frequency ±0.1 %
Input Characteristics
Resolution
Range Resolution
4½ Digits 5½ Digits 6½ Digits
Shunt Resistance
(Ohms)
Burden Voltage
100 µA 100.0000 µA 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 μA
100 nA 10 nA
1 Ω
<0.025 V
100 mA 100.0000 mA 10 µA
1 μA
100 nA
1 Ω
<0.25 V
1 A 1.000000 A 100 µA 10 µA
1 μA
0.01 Ω
<0.05 V
3 A
[1]
3.00000A 1 mA 100 µA 10 µA
0.01 Ω
<0.15 V
10 A 10.00000 A 1 mA 100 µA 10 µA
0.01 Ω
<0.5 V
[1] Part of 10 A range.
Accuracy (8846A)
Accuracy is given as ± (% measurement + % of range)
Range
24 Hour
(23 ±1 °C)
90 Days
(23 ±5 °C)
1 Year
(23 ±5 °C)
Temperature
Coefficient/ °C
Outside 18 to 28 °C
100 µA 0.01 + 0.02 0.04 + 0.025 0.05 + 0.025 0.002 + 0.003
1 mA 0.007 + 0.005 0.030 + 0.005 0.05 + 0.005 0.002 + 0.0005
10 mA
0.007 + 0.02 0.03 + 0.02 0.05 + 0.02 0.002 + 0.002
100 mA 0.01 + 0.004 0.03 + 0.005 0.05 + 0.005 0.002 + 0.0005
1 A
[2]
0.03 + 0.02 0.04 + 0.02 0.05 + 0.02 0.005 + 0.001
3 A
[1][2]
0.05 + 0.02 0.08 + 0.02 0.1 + 0.02 0.005 + 0.002
10 A
[2]
0.1 + 0.008 0.12 + 0.008 0.15 + 0.008 0.005 + 0.0008
[1] Part of 10 A range
[2] Available at front panel connectors only
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