Frequency Measurement - UNI-T UT8805E Manual

Open circuit voltage
Input protection
Configurable
parameters
Note: all ranges are allowed to exceed range by 20%.
4) Relative value setting
Turn the relative operation on, the displayed value is actual measured value minus the set relative value.
About relative value setting, please refer to 2.10 Mathematical Functions.
5) Measured value reading
Press [Speed] to select proper reading rate and read the measured value.
6) History data review
User can check the history data by number, bar chart, trend chart, and histogram.
Note:

During resistance measurement, please avoid short circuit caused by antistatic rubber, copper foil
and other conductors, and keep away from strong electromagnetic radiation.

When the input terminal is in dangling state in 4-wire resistance measurement, random reading will
show.

2.3.6 Frequency Measurement

Frequency value can be read by turning on the dual display function in AC voltage measurement. Besides
that, the same frequency value can be read in frequency measurement. The connecting and
measurement methods are shown below:
1) Press
button to enter interface of signal frequency measurement as Figure 2-19.
2) Connect the test leads to measured signal as Figure 2-20, connect the red test lead to terminal Input-
HI, and the black one to terminal Input-LO.
<8V
a) DC 1000V or AC 750Vrms for all ranges (terminal HI)
b) DC 200V for all ranges (terminal Sense HI and terminal Sense
LO)
Range, reading speed, relative operation set value
Figure 2-19 Interface of signal frequency measurement
21
UT8805E Benchtop Digital Multimeter