Operation of Hold Mode
To avoid possibility of electric shock, do not use Hold mode
to determine if circuits are without power. The Hold mode
will not capture unstable or noisy readings.
The Hold mode is applicable to all measurement functions.
l
PressHOLD H to enter Hold mode; the Meter beeps.
l
Press HOLD H again or RANGE or Hz % or turn the rotary
switch to exit Hold mode; the Meter beeps.
l
In Hold mode, is displayed.
Warning
Pressing HOLD H in REL mode makes the Meter stop
updating. Pressing HOLDH again to resume updating.
To enter or exit REL mode:
l
Use rotary switch to select the measurement function before
selectingREL . If measurement function changes manually
after REL
is selected, the Meter exits the REL mode.
l
PressREL to enter REL mode, auto ranging turns off except
under capacitance testing mode, and the present measurement
range is locked and display “0” as the stored value.
l
PressREL
again or turn the rotary switch to reset the
stored value and exit REL mode.
The Use of Relative Value Mode
The REL mode applies to all measurement functions except
frequency/duty cycle measurement. It subtracts a stored value
from the present measurement value and displays the result.
For instance, if the stored value is 20.0V and the present
measurement 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.
24
Model 72-7740/72-7745: OPERATING MANUAL
