Introduction; Safety Considerations; Safety Tips - Urrea UD334 Manual De Usuario

E N G L I S H

1. INTRODUCTION

This device is hand-held, battery
operated True-RMS Clamp-on Meter,
designed and tested according to
IEC Publication 1010-2-032 (1994-12)
(Overvoltage Category III), Safety
Requirement and Test, the EMC
Directive (EN 50081-1 and EN 50082-
1), and other safety standards (see
"Specifications").
This measures the True-RMS value
of Alternating Current from 0.3A to
1000A. AC measurements are from
45Hz to 1kHz.
True–RMS sensing provides more
accurate readings on current flow
containing harmonics or distorted
waveforms. Household
appliances, personal
switching power
adjustable speed
are some examples of non-linear
equipment (loads) that generates
harmonics or distorted waveforms.
Because True-RMS current flow
directly relates to the amount of heat
dissipated in wiring, transformers and
system connections, an instrument
with True-RMS sensing indicate
the true heat-providing capability
of a distorted current (or voltage)
waveform, which causes overheated
conductors, transformers and system
connections.
This Meter also provides:
• Manual Ranging for amperage,
voltage and frequency.
• Peak hold function to capture the
Peak value of AC or DC and freeze it
on the LCD.
• Low-battery indicator.
• DC/AC toggle switch.
• DC Amperes zero adjustment dial
switch.
12
electrical
computers,
supplies and
motor drives
• 600 Volt input protection at
Resistance range.
• Continuity beeper and diode test.
• Protective soft carrying case.
2. SAFETY
CONSIDERATIONS
Símbolos internacionales:
WARNING Dangerous
Voltage (Risk of electric
shock)
CAUTION Refer to the
user's manual before
using this Meter
Double Insulation
(Protection class III)
Meter is protected throughout by double
insulation. When servicing the Meter, use
only the specified replacement parts.
CAT III - Per IEC 1010-2-032 (1994-12)

Safety tips:

• Never use the Meter on a circuit
with voltages higher than 600V RMS.
• Never use a Meter whose insulating
protection has been impaired.
• Be extremely cautions when
clamping around
conductors or bus bars. Accidental
contact with the conductor could
result in electric shock.
• Use the Meter only as specified
in this manual. Otherwise, the
protection provided by this Meter
may be impaired.
• Observe the safety messages in this
manual.
• Avoid working alone.
• Inspect the test leads for damaged
insulation or exposed metal. Check
test lead continuity. Damaged leads
should be replaced.
• Disconnect the live test lead before
disconnecting the common test lead.
The
insulated