UNI-T UT70D, Operating Manual

Page: 33 / 48

33
The use of Relative Value and Relative
Percentage Value Mode
The and % mode applies to all measurement functions,
with auto ranging.
REL mode can be used together with
AUTO-HOLD and MAX/MIN mode.
The definition is as follows:
Relative value ( )=present value - stored value.
For instance, if the stored value is 20.0V and the
present value is 22.0V, the reading would be 2.0V.
If a new measurement value is equal to the stored
value then display 0.0V.
Relative percentage value ( %) =(relative value
stored value) 100%
To enter or exit and % mode:
Use rotary switch to select the desired measurement
function before selecting
REL . If measurement
functions change manually after REL is selected,
the Meter exits the REL mode.
Press REL to enter mode, and the present
measurement range is locked and display the last
measurement value as "0" as the stored value. Then
if carrying out measurement at this time, the
LCD
will display the value as the result.
Press
REL again to enter % mode, and the
present measurement range is locked and display
the last measurement value as "0" as the stored
value. Then if carrying out measurement at this time,
the
LCD will display the value as the % result.
Press REL again or turn the rotary switch to reset
the stored value and exit and % mode, returning
to normal measurement mode.
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