•
Connect the test leads as shown and observe the digital display.
•
Default at
. Press SELECT button momentarily to select
Continuity function.
•
A continuous beep tone indicates a complete wire. This is useful
for checking wiring connections and operation of switches.
4.3.6 RPM function (main display)
•
Set rotary switch to
.
•
Default at 4 cylinders (
). Press cylinder (RANGE) 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.
•
Insert red (
) test lead into
jack and black (
) test lead into
COM input jack.
•
Connect the test leads as shown and observe the digital display.
•
Press SELECT button momentarily to display DWELL reading in
terms of percentage if required.
•
Refer (4-2) for convenient dual display RPM function.
•
Adjust the dwell angle according to the procedures outlined in your
vehicle service manual.
Note: 1- Re-check the timing whenever the dwell angle has been
adjusted.
2- 4 trigger levels selectable through LEVEL push button for
advanced applications in this function. Also refer (5-8) for
more details.
4.3.8
FUEL INJECTION DETECTOR Function
•
Set rotary switch to
.
•
Press
RPM
4
2
button to toggle to
RPM
2
for 2-stroke and DIS
engine, or to
RPM
4
for 4-stroke engine.
•
Insert output plug of inductive pick up with the positive (red) into
RPM
jack and the negative (black) into the RPM
jack.
•
Clamp the inductive pick up to a spark plug wire with the arrow
sign pointing the spark plug. Make sure that the pick up jaws are
completely closed.
•
Observe the digital display for RPM readings.
Note:
4 trigger levels selectable through
LEVEL
push button, for
advanced applications in this function. Also refer (5.8) for
more details.
4.3.7 DWELL Function
•
Set rotary switch to -ms.
•
Insert red (
) test lead into
jack and black (
) test lead into
COM input jack.
•
Connect the test leads as shown and observe the digital display.
•
Press SELECT button momentarily to display ms reading in terms
of percentage (%) if required.
•
Refer (4-2) for convenient dual display RPM function.
Note: 1. This -ms function applies to both Port Fuel Injectors (PFI)
which operate with a single on time pulse and Throttle Body
Injectors (TBI) which operate with twin pulses.
2. 4 trigger levels selectable through LEVEL push button for
advanced applications in this function. Also refer (5.8) for
more details.
3. The fuel injection frequency can be displayed on the
secondary display by pressing the
button.
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