Innova 3340 El Manual Del Propietario página 16

J. CLAMP CURRENT MEASUREMENT
NOTE: Clamp current measurement requires use of an optional
Clamp adapter. The optional Clamp adapter has not been e val-
uated by UL.
1. Plug the RED test lead from the Clamp adapter to the
jack of the tester ; plug the BLACK test lead into the " COM"
jack.
2. Set the tester' s Function/Range Selector Switch to the
3. Clamp the Clamp adapter around the wire or cable from the
source or load under measurement.
4. Read the results on the display.
K. COP RPM AND RPM (TACH) MEASUREMENT
Risk of Explosion. This equipment has inter nal arcing and
sparking parts, which should not be e xposed to flammab le
vapors. This equipment is only suitab le for installation in a
garage having sufficient air circulation to be considered a non-
hazardous location.
Ignition coils produce a v ery high voltage. To reduce the r isk of
electric shock when conducting RPM tests , DO NOT touch the
uninsulated ends of the test probes , the ignition coil, or the coil
terminals when the engine is r unning.
1. Plug the RED test lead into the " RPM." jack of the tester ;
plug the BLACK test lead into the " COM" jack.
2. Place the RED test lead onto the "Tachometer Signal por t"
of the vehicle's ignition system, or onto the negative (-) side
of the ignition coil. Place the BLACK test lead onto a good
chassis ground or the negative (-) terminal of the battery.
NOTE: If your vehicle is equipped with a COP (Coil On
Plug) system and you are using the
RED test lead connection to the negativ e (-) side of one of
the ignition coils.
3. Set the tester's Function/Range Selector Switch to the
or
Indicators, Items 14 and 15).
15
position (see Controls and Indicators, Item 11).
WARNING
WARNING
position, as appropr iate (see Controls and
setting, make the