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
position (see Controls and Indicators, Item 11).
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
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 port”
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
setting, make 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
position, as appropr iate (see Controls and
Indicators, Items 14 and 15).
15
WARNING
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.
WARNING
Ignition coils produce a very high voltage. To reduce the risk 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 running.