6.1 Button REL
6.1.1
REL function
This mode enables a measurement relative to a reference value.
To enable the mode, press briefly REL
readout value is taken as the reference value, and the readout will
be reset.
From this moment, the readings will be presented as the ratio of
the measured value to the reference value.
To disable the mode, press REL
The displayed main result is the difference between the reference
value (read-out at the moment of activating REL mode) and the cur-
rent read-out. Example: if the reference value is 20 A, and the cur-
rent reading is 12.5 A, then the main result on the display will be
-7.5 A. If the new reading is identical to the reference value, then
the result will be zero.
When the function is activated, the automatic adjustment
of the measuring range is not available.
If the reading is outside the measurement range, symbol
OL is displayed In this situation, turn off the function and
manually switch to a higher range.
This function is not available for diode test, continuity test
and duty cycle.
6.1.2
Display backlight
Pressing and holding REL
ON/OFF the display backlight function.
6 Special features
CMP-402 ● CMP-403 – USER MANUAL
. Then, the displayed
.
button for 2 seconds will turn
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