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Meter setup to measure frequency:
• Set the rotary switch to the Hi-Sen Hz ( ) setting.
• Insert the black lead in the “COM” jack.
• Insert the red lead in the “ ” jack.
Connect:
• Black test probe to ground.
• Red test probe to the signal output lead of the object to be tested.
NOTE: The display will show 0.00Hz for frequencies below 0.5Hz.
6. BASIC AUTOMOTIVE MEASUREMENTS
RPM Measurements Using the Inductive Pickup (RPM IP mode)
RPM (revolutions per minute) can be measured in the RPM IP mode using the inductive pickup (standard
accessory). Clamp the inductive pickup around any spark plug wire; the inductive pickup converts the
magnetic eld generated by the current ow in the spark plug wire into a pulse that triggers the meter’s RPM
measurement.
With the inductive pickup, you can make RPM measurements on any two- or four-stroke automotive engine with
any number of cylinders without physically connecting to any test points or wires.
WARNING
THE IGNITION SYSTEM POSES A POTENTIAL SHOCK HAZARD. ENSURE THAT THE ENGINE IS OFF
BEFORE CONNECTING OR REMOVING THE INDUCTIVE PICKUP.
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