Fluke 8508A Service Manual page 24

8508A
Service Manual
Range
200 A, 2 mA &
20 mA
200 mA
2 A
20 A
Type........................................................................ True rms, AC coupled. DC coupled gives
Crest Factor........................................................... 3:1 at 50 % range, 1.5:1 at full range
Protection
Front Input............................................................... 20 A rms
Rear Input ............................................................... 2 A rms, Rear Panel Fuse
Settling Time
100 Hz filter............................................................. < 0.5 s
40 Hz filter............................................................... < 1.25 s
10 Hz filter............................................................... < 5 s
1 Hz filter................................................................. < 50 s
1-14
AC Current (Secondary Specifications)
Temperature Coefficient
Frequency (Hz)
15 °C - 30 °C
± ppm Reading/°C
1 - 10 10
10 - 10 k 10
10 k - 30 k 12
30 k - 100 k 40
1 - 10 10
10 - 10 k 15
10 k - 30 k 15
10 - 2 k 10
2 k - 10 k 15
10 k - 30 k 20
10 - 2 k 20
2 k - 10 k 25
5 °C - 15 °C
30 °C - 40 °C
Range
15
200 A
15 2 mA
20 20 mA
60
15
20
20
15
20
30
25
30
200 A to 200 mA Ranges 2 A Range
to 100 ppm of step to 100 ppm of step to 300 ppm of step
< 1 s
< 2 s
< 10 s
< 50 s
[1] [2] [6] [9]
Input Impedance ( )
Front
150 150
15.2 15.2
1.8 1.9
1.2 1.3
0.3 0.4
0.04 -
2 2
(ac dc )
20 A Range (at 10 A)
< 1 s
< 2 s
< 10 s
< 50 s
Rear