Fluke 87V Ex - Functions and Trigger Levels for Frequency Measurements

87V Ex
Users Manual
30
Table 6. Functions and Trigger Levels for Frequency Measurements
Function Range
Approximate
Trigger Level
Typical Application
K
6 V, 60 V,
600 V, 1000 V
± 5 % of scale Most signals.
K
600 mV ± 30 mV High-frequency 5 V logic signals. (The dc-coupling of the L function can
attenuate high-frequency logic signals, reducing their amplitude enough to
interfere with triggering.)
m
L
600 mV 40 mV Refer to the measurement tips given before this table.
L
6 V 1.7 V 5 V logic signals (TTL).
L
60 V 4 V Automotive switching signals.
L
600 V 40 V Refer to the measurement tips given before this table.
L
1000 V 100 V
R e E Gd
Frequency counter characteristics are not available or specified for these functions.
\
All ranges ± 5 % of scale AC current signals.
µAF
600 µA, 6000 µA 30 µA , 300 µA Refer to the measurement tips given before this table.
^
60 mA, 400 mA 3.0 mA , 30 mA
AF 6 A, 10 A .30 A, 3.0 A