User Manual

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