5.1 SECONDARY FUNCTION Selection
Press the
button momentarily to select the secondary functions
of a selected rotary switch position.
5.1 BACK LIGHT
Press and hold the
button momentarily to toggle the backlight
on and off. The backlight will also be off 55 seconds after each
activation automatically to extend battery life.
5.4
Selection
In the RPM function, the meter defaults to
RPM
4
for conventional
4-stroke engine. Press
button momentarily to toggle to
RPM
2
for DIS or 2-stroke engine.
5.5 RECORD
Mode
Perform measurements as described in
BASIC OPERATION
.
Press and hold the
button for 1 second or more to activate
Record
mode, the
LCD annunciators turn on. The meter
beeps when new maximum or minimum reading is detected. Press
the button momentarily to read throughout the Maximum (MAX),
Minimum (MIN), Maximum minus Minimum (MAX-MIN), and
Average (AVG) readings. Press the button for 1 second or more to
exit
Record
mode.
With the Auto-Ranging Record mode, you can easily track
intermittent signals, capture turn-on/ turn-off surges, and monitor
line voltage changes over a much wider dynamic range with the
best resolution. It largely surpasses single range recording which is
easily over-
fl
owed, or with insuf
fi
cient resolution. The meter features
a fast single range sampling speed of 50ms for MAX, MIN, MAX-
MIN and AVG readings. The faster the sampling speed, the more
accurate the measurement of surges, spikes and sags will be. The
true average AVG feature calculates all readings taken over time
continually.
5.6 CREST
(Instantaneous Peak Value) Mode
Perform measurements as described in
BASIC OPERATION
.
Press and hold the
button for 1 second or more to activate
Crest
mode with LCD annunciators MAX turn on. Press the button
momentarily to read throughout the Maximum (MAX), Minimum
(MIN), and Maximum minus Minimum (MAX-MIN) readings. Press
the button for 1 second or more to exit Crest mode. With the Crest
mode, you can capture transient signal crest voltage (instantaneous
peak value) as short as 1ms.
Notes: 1- Auto Power Off feature will be disabled automatically in
this mode
2-
To retain the readings after measurements, use
HOLD
function to stop updating the measurements
before disconnecting the test leads. Use similar pushbutton
procedures described above to read throughout the locked
readings
Note: 1- Auto Power Off feature will be disable automatically in
this mode.
2- To retain the readings after measurements, use
HOLD
function to stop updating the measurements
before disconnecting the test leads. Use similar pushbutton
procedures described above to read throughout the locked
readings.
5.7 HOLD Function
Press the
button momentarily to activate the hold function with
LCD annunciator turns on. Press momentarily again to release.
When in normal measuring modes, the hold feature freezes the
display for later view. When in
RECORD
or
CREST
mode, however,
the hold function stops updating the measurements, and you can
read throughout the locked
MAX, MIN, MAX-MIN
, and
AVG
readings.
Release the hold function to continue
RECORD
or
CREST.
5.8 TRIGGER LEVEL Selection
The meter is set at carefully selected trigger levels, and as power
up default on individual functions for most applications. However,
car signal levels under test may vary due to aging of components,
abnormal conditions, and different design from different car
manufacturers.
Therefore, a Trigger level selection function is designed to provide
more
fl
exibility to cope with your applications. The 4 trigger levels
provided are carefully selected and tested to include all of the
extreme conditions, and you virtually do not need more. More trigger
levels may decrease the ease of use and increase the measuring
uncertainty as you may encounter in some old technology.
If your measuring reading is unstable, select lower sensitivities
(higher trigger level number) by pressing the
LEVEL
button
momentarily. If your measuring reading shows zero, select higher
sensitivities (lower trigger level number).
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