Dc Current - Fluke 8845A User Manual

DC Current

Input Protection .................................................... Tool-accessible 11 A/1000 V and 440 mA/1000 V fuses.
Input Characteristics
Full Scale
Range
(6½ Digits)
100 µA 100.0000 µA
1 mA 1.000000 mA
10 mA 10.00000 mA
100 mA 100.0000 mA
1 A 1.000000 A
[1]
3 A 3.00000A
10 A 10.00000 A
[1] Part of 10 A range.
Accuracy (8846A)
Accuracy is given as (% measurement + % of range)
24 Hour
Range
(23 1 C)
100 µA 0.01 + 0.02
1 mA 0.007 + 0.005
10 mA 0.007 + 0.02
100 mA 0.01 + 0.004
[2]
1 A 0.03 + 0.02
[1][2]
3 A 0.05 + 0.02
[2]
10 A 0.1 + 0.008
[1] Part of 10 A range
[2] Available at front panel connectors only
Accuracy (8845A)
Accuracy is given as (% measurement + % of range)
24 Hour
Range
(23 1 C)
100 µA 0.01 + 0.02
1 mA 0.007 + 0.005
10 mA 0.007 + 0.02
100 mA 0.01 + 0.004
[2]
1 A 0.03 + 0.04
[1][2]
3 A 0.05 + 0.08
[2]
10 A 0.1 + 0.008
[1] Part of 10 A range
[2] Available at front panel connectors only
Additional Current Errors
Digits
6½
6½
5½
5½
4½
Resolution
4½ Digits 5½ Digits
10 nA 1 nA
100 nA 10 nA
100 nA
1 A
10 µA
1 A
100 µA 10 µA
1 mA 100 µA
1 mA 100 µA
90 Days
(23 5 C)
0.04 + 0.025 0.05 + 0.025
0.030 + 0.005 0.05 + 0.005
0.03 + 0.02 0.05 + 0.02
0.03 + 0.005 0.05 + 0.005
0.04 + 0.02 0.05 + 0.02
0.08 + 0.02 0.1 + 0.02
0.12 + 0.008 0.15 + 0.008
90 Days
(23 5 C)
0.04 + 0.025 0.05 + 0.025
0.030 + 0.005 0.05 + 0.005
0.03 + 0.02 0.05 + 0.02
0.03 + 0.005 0.05 + 0.005
0.08 + 0.02 0.05 + 0.02
0.12 + 0.02 0.1 + 0.02
0.12 + 0.008 0.15 + 0.02
NPLC
100
10
1
0.2
0.02
Introduction and Specifications
Shunt Resistance
(Ohms)
6½ Digits
100 pA
100
1 nA
100
10 nA
1
100 nA
1
1 A 0.01
10 µA
0.01
10 µA
0.01
Temperature
1 Year
Coefficient/ C
(23 5 C)
Outside 18 to 28 C
0.002 + 0.003
0.002 + 0.0005
0.002 + 0.002
0.002 + 0.0005
0.005 + 0.001
0.005 + 0.002
0.005 + 0.0008
Temperature
1 Year
Coefficient/ C
(23 5 C)
Outside 18 to 28 C
0.002 + 0.003
0.002 + 0.0005
0.002 + 0.002
0.002 + 0.0005
0.005 + 0.001
0.005 + 0.002
0.005 + 0.0008
Additional Noise Error
0 % of range
0 % of range
0.001 % of range
0.001 % of range 4 A
0.01 % of range 4 A
Electrical Specifications
Burden Voltage
<0.015
<0.15
<0.025 V
<0.25 V
<0.05 V
<0.15 V
<0.5 V
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