Fluke 2680A, Service Manual

Page: 39 / 254

Introduction and Specifications
Fast Analog Input (FAI) A/D Specifications
1
1-23
Table 1-26. FAI A/D AC Voltage Range and Resolution Specifications
Range
Resolution
Minimum Input for
Slow Fast
Rate Accuracy
Full Scale +30,000 +3,000
300 mV 10
µ
V 100
µ
V 20 mV
3 V 100
µ
V 1 mV 200 mV
30 V 1 mV 10 mV 2 V
Table 1-27. FAI A/D AC Voltage Accuracy Specifications
1 Year Ac (%input + V) [1]
Range Frequency 18
°
C to 28
°
C -10
°
C to 60
°
C
Slow Fast Slow Fast
300 mV 20 to 50 Hz 3%+.25 mV 6%+.5 mV 3.5%+.25 mV 7%+.5 mV
50 to 150 Hz 0.4%+.25 mV 0.8%+.5 mV 0.5%+.25 mV 1%+.5 mV
150 Hz to 10 kHz 0.3%+.25 mV 0.8%+.5 mV 0.4%+.25 mV 1%+.5 mV
10 kHz to 20 kHz 0.4%+.25 mV 1%+.5 mV 0.7%+.25 mV 1.5%+.5 mV
20 kHz to 50 kHz 2%+.3 mV 3%+.5 mV 3%+.3 mV 4%+.5 mV
50 kHz to 100 kHz 5%+.5 mV 5%+1 mV 7%+.5 mV 8%+1 mV
3 V 20 to 50 Hz 3%+2.5 mV 6%+5 mV 3.5%+2.5 mV 7%+5 mV
50 to 150 Hz 0.4%+2.5 mV 0.8%+5 mV 0.5%+2.5 mV 1%+5 mV
150 Hz to 10 kHz 0.3%+2.5 mV 0.6%+5 mV 0.4%+2.5 mV 1%+5 mV
10 kHz to 20 kHz 0.4%+2.5 mV 0.8%+5 mV 0.5%+2.5 mV 1%+5 mV
20 kHz to 50 kHz 1%+3 mV 1.5%+6 mV 1.5%+3 mV 2%+6 mV
50 kHz to 100 kHz 2%+5 mV 3%+10 mV 3%+5 mV 4%+10 mV
30 V 20 to 50 Hz 3%+25 mV 6%+50 mV 3.5%+25 mV 7%+50 mV
50 to 150 Hz 0.4%+25 mV 0.8%+50 mV 1.2%+25 mV 1.3%+40 mV
150 Hz to 10 kHz 0.4%+25 mV 0.8%+50 mV 1.2%+25 mV 1.3%+40 mV
10 kHz to 20 kHz 0.4%+25 mV 0.8%+50 mV 1.2%+25 mV 1.3%+40 mV
20 kHz to 50 kHz 1%+30 mV 1.5%+60 mV 1.2%+30 mV 2%+50 mV
50 kHz to 100 kHz, V<20V 2%+50 mV 3%+100 mV 2.5%+50 mV 4%+100 mV
[1] Sinewave inputs>6% of scale and signals with crest factors <2.