5.9 TRIGGER
Selection
Trigger
or
is to identify whether the on or off portion of
the signal under test is of measuring interest. For example, as
in duty cycle function, if you get a reading of 10% in the trigger
(on portion), you then will get a reading of 90% in trigger
(off portion).
To toggle between trigger
and
, Press and Hold the
button for 1 second.
5.10 MANUAL or AUTO RANGING
•
Press the
button momentarily to select manual ranging, and
the meter will remain in the range it was in with LCD annunciator
turns off. Press the button momentarily again to step
through the ranges. Press and hold the button for 1 second or
more to resume auto-ranging. In
Dwell function.
•
Press the
button momentarily to display the cylinder setting
on the secondary display, and press momentarily again within one
second to select the number of cylinders from 1 through 12 to
match the engine under test.
5.11 DATA STORE, RECALL & ERASE
This feature stores the whole display data in memory for later recall.
The memory will remain even in auto-power-off mode, and can also
be recalled while you are in another meter function. The memory will
be erased if the rotary switch is switched to the OFF position.
•
Press the
button for 1 second to store the displaying
information. The LCD will show "
" and the memory data
number to con
fi
rm storage. You can store up to 18 datas by
repeating this procedure.
•
Press the
button for 1 second to recall the last stored data.
The LCD will show "
" and the last memory data number before
displaying the recalled data. The annunciator will then turn on
to identify that the recalled data is being displayed. Then press the
button momentarily to retrieve other stored datas.
•
Press any other buttons momentarily EXCEPT
to resume
measurement. Press and Hold the
button for 1 second to
Erase all the stored data.
5.12 RELATIVE
Modes
•
Press the
button momentarily to enter the Relative Zero
( ) mode with LCD annunciator turns on. Relative zero allows
the user to offset the meter measurements with a relative
reference value. Practically all display readings can be set as
relative reference value including MAX, MIN, MAX-MIN, and AVG
readings of RECORD functions.
•
Press the
button momentarily again to enter the Relative
Percentage Change (%) mode with LCD annunciators % turn on.
In this mode, the readings show relative percentage changes with
respect to the relative reference value. It simpli
fi
es zero, peaking,
nulling measurements, and is excellent for
fi
ne adjustments and
comparison.
•
Press and hold the
button for 1 second or more to exit
relative modes and resume normal measurements.
5.13 AUTO POWER OFF (APO)
The Auto Power Off (APO) mode turns the meter OFF automatically
to extend battery life after 5 minutes of inactivities. The meter turns
back ON if the rotary switch is turned. Activities are speci
fi
ed as:
1- Rotary switch or push button operations.
2- Signi
fi
cant measuring data readings.
When entering the Record or Crest mode, the Auto Power Off will be
disabled automatically, and the LCD annunciator
will be off.
The Auto Power Off feature can be disabled manually as a power-
on option by pressing the
button while turning the meter on.
The LCD annunciator will be off during operation. For maintenance
testing purposes, the Auto Power Off timing can be shortened to 5
seconds by pressing the
button while turning the meter on
Note: 1. Stored data remains after Auto Power Off, BUT will be
erased if the rotary switch is switched to the OFF position
2. Always turn the rotary switch to the OFF position when the
meter is not in use. The meter will produce a beep sound
to alert the user while turning off automatically
5.14 LINE FILTER FREQUENCY 50 Hz or 60 Hz selection
The line
fi
lter frequency can be selected as a power-on option.
•
Press the
button while turning the meter on to display the
set frequency.
•
Press the
button for 50 Hz or press the
button for
60 Hz selections.
•
Then press the
button to store the selected frequency.
Selecting the appropriate line
fi
lter frequency to cope with your
line frequency can maximize the meter's noise rejection ability.
This feature is normally only available in expensive bench top
multimeter.
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