Resistance; Dc Current - Fluke 8808A User Manual

Resistance

Specifications are for 4-wire resistance function, or 2-wire resistance with REL. If REL is not used, add 0.2
resistance plus lead resistance.
Measurement Method ....................................... Current source referenced to LO input
Max Lead Resistance (4-wire ohms) ............... 10 % of range per lead for 200 , 2 k ranges. 1 k
Input Protection ................................................ 1000 V on all ranges
Full-Scale
Range
(5-1/2 Digits)
200 199.999
2 k 1.99999 k
20 k 19.9999 k
200 k 199.999 k
2 M 1.99999 M
20 M 19.9999 M
100 M 100.000 M
Range
90 days
23 C
200 0.02 + 0.004
2 k 0.015 + 0.002
0.015 + 0.002
20 k
200 k 0.015 + 0.002
2 M 0.03 + 0.003
0.2 + 0.003
20 M
1.5 + 0.004
100 M
Notes:
[1] Uncertainty given as (% of reading + % of range)

DC Current

Input Protection ............................................... Tool accessible 11 A / 1000 V and 440 mA / 1000 V fuses.
Shunt Resistance.............................................. 0.01
Full-Scale
Range
(5-1/2 Digits)
200 A 199.999 A
2 mA
1999.99 A
20 mA 19.9999 mA
200 mA 199.999 mA
2 A 1.99999 A
10 A 10.0000 A
other ranges.
Input Characteristics
Resolution
Slow
0.001
0.01
0.1
1
10
100
1 k
Accuracy
[1]
Uncertainty
1 year
5 C 23 C
0.03 + 0.004
0.02 + 0.003
0.02 + 0.003
0.02 + 0.003
0.04 + 0.004
0.25 + 0.003
1.75 + 0.004
for 2 A and 10 A ranges
1 for 20 mA and 200 mA
Burden voltage < 5 mV for 200 A and 2 mA range.
Input Characteristics
Resolution
Slow
0.001 A
0.01 A
0.1 A
1 A
10 A
100 A
Introduction and Specifications
Medium Fast
0.01 0.01
0.1 0.1
1 1
10 10
100 100
1 k 1 k
10 k 10 k
Temperature Coefficient/ C
5 C
Medium Fast
0.01 A 0.01 A
0.1 A 0.1 A
1 A 1 A
10 A 10 A
100 A 100 A
1 mA 1 mA
Electrical Specifications
for 2-wire
per lead on all
Current Source
0.8 mA
0.8 mA
0.08 mA
0.008 mA
0.9 A
0.16 A
0.16 A || 10 M
Outside 18 – 28 C
0.003 + 0.0006
0.003 + 0.0005
0.003 + 0.0005
0.003 + 0.0005
0.004 + 0.0005
0.01 + 0.0005
0.2 + 0.0005
Burden Voltage
<5 mV
<5 mV
<0.05 V
<0.5 V
<0.1 V
<0.5 V
1
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