4 Fluke Corporation 8808A
Resistance
Specifications are for 4-wire resistance function, or 2-wire resistance with REL. If REL is not used, add 0.2 for 2-wire
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 per lead on all other
ranges.
Input Protection .......................................................1000 V on all ranges
Input Characteristics
Resolution
Range
Full-Scale
(5-1/2 Digits)
Slow Medium Fast
Current Source
200 199.999 0.001 0.01 0.01
0.8 mA
2 k 1.99999 k 0.01 0.1 0.1
0.8 mA
20 k 19.9999 k 0.1 1 1
0.08 mA
200 k 199.999 k 1 10 10
0.008 mA
2 M 1.99999 M 10 100 100
0.9 µA
20 M 19.9999 M 100 1 k 1 k
0.16 µA
100 M 100.000 M 1 k 10 k 10 k
0.16 µA || 10 M
Accuracy
Accuracy
[1]
90 days 1 year
Range
23 °C ± 5 °C 23 °C ± 5 °C
Temperature Coefficient/°C
Outside 18 – 28 °C
200 0.02 + 0.004 0.03 + 0.004
0.003 + 0.0006
2 k 0.015 + 0.002 0.02 + 0.003
0.003 + 0.0005
20 k 0.015 + 0.002 0.02 + 0.003
0.003 + 0.0005
200 k 0.015 + 0.002 0.02 + 0.003
0.003 + 0.0005
2 M 0.03 + 0.003 0.04 + 0.004
0.004 + 0.0005
20 M 0.2 + 0.003 0.25 + 0.003
0.01 + 0.0005
100 M 1.5 + 0.004 1.75 + 0.004
0.2 + 0.0005
Notes:
[1] Accuracy 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 for 2 A and 10 A ranges
1 for 20 mA and 200 mA
Burden voltage < 1 mV for 200 uA and 2 mA range.
Input Characteristics
Resolution
Range
Full-Scale
(5-1/2 Digits)
Slow Medium Fast
Burden Voltage
200 uA 199.999 µA 0.001 µA 0.01 µA 0.01 µA
<1 mV
2 mA 1999.99 µA 0.01 µA 0.1 µA 0.1 µA
<1 mV
20 mA 19.9999 mA 0.1 µA 1 µA 1 µA
<0.05 V
200 mA 199.999 mA 1 µA 10 µA 10 µA
<0.5 V
2 A 1.99999 A 10 µA 100 µA 100 µA
<0.1 V
10 A 10.0000 A 100 µA 1 mA 1 mA
<0.5 V