4
5
WARNING
To avoid electrical shock hazard or damage to the meter, do not exceed the input
limits shown in the table below :
Observe the proper safety precautions when working with voltages above 60 V
DC or 25 V AC rms to avoid an electrical shock. These voltage levels pose a
potential shock hazard to the user.
Wear an ANS I eye shield when t esting or repairing vehicles. Objects can be
propelled by whirling engine components.
Inspect test leads, connectors, and probes for damaged insulation or exposed
metal bef ore using the instrument . I f any defects are found, replace them
immediately.
Never attempt a voltage measurement with the test leads inserted into the “A”
terminal and the COM terminal. The A” t erminal is protected by a fuse. You
might be injured or damage the meter.
Turn the engine off before connecting or disconnecting inductive pickup to avoid
a shock.
FUNCTION
Temperature
Hz
ms-Pulse
Dwell
Duty Cycle
Elec, O
2
RPM
Battery Drain
TERMINALS
& COM
RPM + & -
A & COM
MAXIMUM INPUT
1000 V DC or 1000 V
peak
600 V DC or
600 V AC rms
10 A / 600 V
V
W
Hzms
Elec Temp
CAUTION
Disconnect the test leads from the test points before changing functions to avoid
damaging the meter when testing above 350 V AC.
Choose t he proper range and function for the measurement . Always set the
meter to the highest range and work downward for an unknown value if you are
using manual ranging mode.
Do not try voltage or current measurements that may exceed the ratings marked
on the input limit for switch or terminal.
Use current probes to measure circuits exceeding 10 A.
Disconnect the “live” test lead before disconnecting the “common” test lead.
Do not test a recently recharged lead-acid battery.
Disconnect the power and discharge all high-voltage capacitors before testing in
the resistance, continuity, and diode functions.
If the engine has been running, do not place the meter and its accessories near
the engine or the exhaust manifold which might be hot and can damage the
meter.