Specifications
General Specifications
8
8-9
Duty Cycle
Range:
0.1% to 99.9%
Accuracy: ±
(5.2% divided by the pulse width in
microseconds + 2 counts) (1 ms = 1000
microseconds).
Period
Ranges:
999.99
μ
s, 9.999 ms, 99.99 ms, and 999 ms
Accuracy: ±
(0.05% of reading + 2 counts)
Pulse Width
Ranges:
999.99
μ
s, 9.999 ms, 99.99 ms, and 999 ms
Accuracy: ±
(5.2% divided by the pulse width in
microseconds + 2 counts) (1 ms = 1000
microseconds).
Logic (Fluke 867B Only)
Trigger Levels
1
Logic Family Low High
3V CMOS 1.4V 1.7V
5V CMOS 2.6V 2.8V
TTL 1.7V 1.9V
1. Frequency measurements will trigger on the
logic family high levels. All measurements are
made using the Logic/Ext. Trig. input jack.
2. For frequency > 1 MHz use full logic level.
Frequency Measurements
Frequency Accuracy
1000.00 Hz 0.05% + 2
10.0000 kHz 0.05% + 1
100.000 kHz 0.05% + 1
1.00000 MHz 0.05% + 1
2.0000 MHz 0.05% + 1
10.0000 MHz 0.05% + 1