Fluke 8845A FE 8845A & 8846A Users Manual - Page 24

Input Characteristics, 8846A Accuracy, Additional Ohms Errors, 001 % of range

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8845A/8846A Users Manual 1-14 Max. Lead Resistance (4-wire ohms 10 % of range per lead for 100 Ω, 1 kΩ ranges. 1 kΩ per lead on all other ranges. Input Protection 1000 V on all ranges. Input Characteristics Range Full Scale (6½ Digits) 10 Ω[1] 10.00000 Ω 100 Ω 100.0000 Ω 1 kΩ 1.000000 kΩ 10 kΩ 10.00000 kΩ 100 kΩ 100.0000 kΩ 1 MΩ 1.000000 MΩ 10 MΩ 10.00000 MΩ 100 MΩ 100.0000 MΩ 1.0 GΩ[1] 1.000000 GΩ [1] 8846A Only 4½ Digits 1 mΩ 10 mΩ 100 mΩ 1 Ω 10 Ω 100 Ω 1 kΩ 10 kΩ 100 kΩ Resolution 5½ Digits 100 µΩ 1 mΩ 10 mΩ 100 mΩ 1 Ω 10 Ω 100 Ω 1 kΩ 10 kΩ 6½ Digits 10 µΩ 100 µΩ 1 mΩ 10 mΩ 100 mΩ 1 Ω 10 Ω 100 Ω 1 kΩ Source Current 5 mA 1 mA 1 mA 100 µA 10 µA 10 µA 1 µA 1 µA || 10 MΩ 1 µA || 10 MΩ 8846A Accuracy Accuracy is given as ± (% measurement + % of range) Range 10 Ω 100 Ω 1 kΩ 10 kΩ 100 kΩ 1 MΩ 10 MΩ 100 MΩ 1 GΩ 24 Hour (23 ± 1 °C) 0.003 + 0.01 0.003 + 0.003 0.002 + 0.0005 0.002 + 0.0005 0.002 + 0.0005 0.002 + 0.001 0.015 + 0.001 0.3 + 0.01 1.0 + 0.01 90 Days (23 ± 5 °C) 0.008 + 0.03 0.008 + 0.004 0.008 + 0.001 0.008 + 0.001 0.008 + 0.001 0.008 + 0.001 0.02 + 0.001 0.8 + 0.01 1.5 + 0.01 8845A Accuracy Accuracy is given as ± (% measurement + % of range) Range 100 Ω 1 kΩ 10 kΩ 100 kΩ 1 MΩ 10 MΩ 100 MΩ 24 Hour (23 ± 1 °C) 0.003 + 0.003 0.002 + 0.0005 0.002 + 0.0005 0.002 + 0.0005 0.002 + 0.001 0.015 + 0.001 0.3 + 0.01 90 Days (23 ± 5 °C) 0.008 + 0.004 0.008 + 0.001 0.008 + 0.001 0.008 + 0.001 0.008 + 0.001 0.02 + 0.001 0.8 + 0.01 Additional Ohms Errors Digits 6½ 6½ 5½ 5½ 4½ NPLC 100 10 1 0.2 0.02 1 Year (23 ± 5 °C) 0.01+ 0.03 0.01 + 0.004 0.01 + 0.001 0.01 + 0.001 0.01 + 0.001 0.01 + 0.001 0.04 + 0.001 0.8 + 0.01 2.0 + 0.01 Temperature Coefficient/ °C Outside 18 to 28 °C 0.0006 + 0.0005 0.0006 + 0.0005 0.0006 + 0.0001 0.0006 + 0.0001 0.0006 + 0.0001 0.001 + 0.0002 0.003 + 0.0004 0.15 + 0.0002 0.6 + 0.0002 1 Year (23 ± 5 °C) 0.01 + 0.004 0.01 + 0.001 0.01 + 0.001 0.01 + 0.001 0.01 + 0.001 0.04 + 0.001 0.8 + 0.01 Temperature Coefficient/ °C Outside 18 to 28 °C 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 Additional Noise Error 0 % of range 0 % of range 0.001 % of range 0.001 % of range ± 20 mΩ 0.01 % of range ± 20 mΩ

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8845A/8846A
Users Manual
1-14
Max. Lead Resistance (4-wire ohms)
..................
10 % of range per lead for 100
Ω
, 1 k
Ω
ranges. 1 k
Ω
per lead on all
other ranges.
Input Protection
....................................................
1000 V on all ranges.
Input Characteristics
Resolution
Range
Full Scale
(6½ Digits)
4½ Digits
5½ Digits
6½ Digits
Source Current
10
Ω
[1]
10.00000
Ω
1 m
Ω
100
µΩ
10
µΩ
5 mA
100
Ω
100.0000
Ω
10 m
Ω
1 m
Ω
100
µΩ
1 mA
1 k
Ω
1.000000 k
Ω
100 m
Ω
10 m
Ω
1 m
Ω
1 mA
10 k
Ω
10.00000 k
Ω
1
Ω
100 m
Ω
10 m
Ω
100
µ
A
100 k
Ω
100.0000 k
Ω
10
Ω
1
Ω
100 m
Ω
10
µ
A
1 M
Ω
1.000000 M
Ω
100
Ω
10
Ω
1
Ω
10
µ
A
10 M
Ω
10.00000 M
Ω
1 k
Ω
100
Ω
10
Ω
1
µ
A
100 M
Ω
100.0000 M
Ω
10 k
Ω
1 k
Ω
100
Ω
1
µ
A || 10 M
Ω
1.0 G
Ω
[1]
1.000000 G
Ω
100 k
Ω
10 k
Ω
1 k
Ω
1
µ
A || 10 M
Ω
[1] 8846A Only
8846A Accuracy
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
10
Ω
0.003 + 0.01
0.008 + 0.03
0.01+ 0.03
0.0006 + 0.0005
100
Ω
0.003 + 0.003
0.008 + 0.004
0.01 + 0.004
0.0006 + 0.0005
1 k
Ω
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
10 k
Ω
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
100 k
Ω
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
1 M
Ω
0.002 + 0.001
0.008 + 0.001
0.01 + 0.001
0.001 + 0.0002
10 M
Ω
0.015 + 0.001
0.02 + 0.001
0.04 + 0.001
0.003 + 0.0004
100 M
Ω
0.3 + 0.01
0.8 + 0.01
0.8 + 0.01
0.15 + 0.0002
1 G
Ω
1.0 + 0.01
1.5 + 0.01
2.0 + 0.01
0.6 + 0.0002
8845A Accuracy
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
Ω
0.003 + 0.003
0.008 + 0.004
0.01 + 0.004
0.0006 + 0.0005
1 k
Ω
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
10 k
Ω
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
100 k
Ω
0.002 + 0.0005
0.008 + 0.001
0.01 + 0.001
0.0006 + 0.0001
1 M
Ω
0.002 + 0.001
0.008 + 0.001
0.01 + 0.001
0.0010 + 0.0002
10 M
Ω
0.015 + 0.001
0.02 + 0.001
0.04 + 0.001
0.0030 + 0.0004
100 M
Ω
0.3 + 0.01
0.8 + 0.01
0.8 + 0.01
0.1500 + 0.0002
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 m
Ω
4½
0.02
0.01 % of range
±
20 m
Ω