Functions And Trigger Levels For Frequency Measurements - Fluke 88 V User Manual

Model 88 V
Users Manual
Table 7. Functions and Trigger Levels for Frequency Measurements
Function Range
K 6 V, 60 V,
600 V, 1000 V
600 mV
K
L
600 mV
m
L
6 V
L
60 V
L
600 V
L
1000 V
R e E Gd
\
All ranges
µAF 600 µA, 6000 µA
^
60 mA, 400 mA
AF
6 A, 10 A
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28
Approximate
Trigger Level
± 5 % of scale Most signals.
High-frequency 5 V logic signals. (The dc-coupling of the L function can
± 30 mV
attenuate high-frequency logic signals, reducing their amplitude enough to
interfere with triggering.)
40 mV Refer to the measurement tips given on page 27.
1.7 V 5 V logic signals (TTL).
4.0 V Automotive switching signals.
40 V Refer to the measurement tips given before on page 27.
100 V
Frequency counter characteristics are not available or specified for these functions.
± 5 % of scale AC current signals.
30 µA, 300 µA
Refer to the measurement tips given before this table.
3.0 mA, 30 mA
0.30 A, 3.0 A
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Typical Application