— 17 —
Never use the meter for measuring
frequencies to ground as the earth
leakage breaker may trip.
CAUTION
s
Because the function uses
input resistance as low as
approx. 1 k
£
, a large amount of
current flows during measure-
ment. Never use the meter for
measuring circuits or devices
having a small current capacity.
s
The measuring value is not
stable in case if measured
frequency contains some noises.
5-6 Frequency Measurement ( )
Measurement prohibited
Function
Max. Rated Input
Range
1.1 MHz
(
≦
1000 Vrms)
110.0 Hz, 1100 Hz, 11.000 kHz,
110.00 kHz, 1.1000 MHz
Remarks:
s
Input sensitivity: 5 Vrms or over
s
Zero cross (+ potential
→
– potential
→
+ potential) frequencies
can be measured. Frequencies of + potential only or – potential
only such as logic pulses cannot be measured.
s
Frequencies less than 11.1 Hz cannot be measured.
Summary of Contents for PC773
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