User guide

•
If any of the following indications occur during testing, turn
off the power source to the circuit under test:
• Arcing
• Flame
• Smoke
• Extreme Heat
• Smell of Burning Materials
•
Discoloration or Melting of Components
•
Read the safety precautions associated with the equipment being
tested and seek assistance or advice when performing
unfamiliar tasks.
• Keep your fingers away from the test lead metal probe contacts
and bus-bars when making measurements. Always grip the
instrument and test-leads behind the hand guards (molded into
the probes).
• In the event of electrical shock, ALWAYS bring the victim to
the emergency room for evaluation, regardless of the victim’s
apparent recovery. Electrical shock can cause an unstable heart
rhythm that may need medical attention.
International Symbols
Listings
This instrument is designed and tested in accordance with:
I
EC Publication 1010-1 (Overvoltage category III), the safety requirements
for hand-held current clamps for electrical measurements and tests, the
E
MC directive, and other safet
y standards.
Introduction
The D99B Digital Clamp-On Meter is designed for professional electrician's,
p
lant maintenance specialists and service technicians. Now technicians can
w
ork with added confidence, knowing they’re measuring with the superior
accuracy of True RMS, increasing safety by illuminating dark work areas
with a bright LCD Work Light, back light display and extending their
measurement capabilities to 1000V AC/DC.
Features include
• True RMS
• Work light and backlit display
• 1000 Amps AC and DC
• 1000 Volts AC and DC
• Resistance to 40 kilohms
• Continuity
• Push-button ranging
• Peak hold
• Data hold
• 0.1 mV DC resolution allows use of DMM adapters
• 1-3/8” jaw capacity
• CE and UL listed CAT III
Safety Notes
Before using this meter, read all safety information carefully. In
this manual the word "WARNING" is used to indicate conditions
or actions that may pose physical hazards to the user. The word
"CAUTION" is used to indicate conditions or actions that may
damage this instrument.
WARNING!
Exceeding the specified limits of this meter is dangerous and can
expose the user to serious or possibly fatal injury.
• D
O N
O
T
attempt to measure any voltage that exceeds 1
000 volts
DC or AC-RMS with this meter - UEi offers numerous alternatives
for measuring high voltage and current
•
Voltages above 60 volts DC or 25 volts AC may constitute a
serious shock hazard
•
DO NOT attempt to use this meter if either the meter or the test
leads have been damaged. Send unit in for repair by a qualified
repair facility
• Test leads must be fully inserted prior to taking measurements
• Always turn off power to a circuit (or assembly) under test before
cutting, unsoldering or breaking the current path. Even small
amounts of current can be dangerous
•
Always disconnect the live test lead before disconnecting the
common test lead from a circuit
• When measuring high voltage, disconnect the power source before
making test lead connections. Connect the test leads to the meter
first then to the circuit under test. Reapply po
wer