Symbols, Introduction, Warnings and precautions – Amprobe HD110C Digital-Multimeter User Manual
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Symbols
B
Battery
�
Refer to the manual
�
Double insulated
�
Dangerous Voltage
�
Direct Current
�
Earth Ground
�
Alternating Current
�
Audible tone
�
Fuse
�
Complies with EU directives
�
Conforms to relevant
Australian standards.
�
®
Canadian Standards Association.
[Note: Canadian and US.]
�
Do not dispose of this product as unsorted municipal waste. Contact Amprobe
or a
qualified recycler for disposal.
Introduction
The HD110C Heavy-Duty Digital Multimeter is a 3-1/2 digit, manual ranging, ac-coupled average
measuring rms reading display instrument that measures: voltage, current, resistance, continuity, and
diode junctions. Menu selection allows Data Hold and ac or dc voltage and current selection.
Warnings and Precautions
This instrument is EN61010-1 certified for Cat IV, 1000 V ac/1500 V dc and lower installations.
Based on EN61010-1 transient requirements, this product should only be used in installations
where transients do not exceed 12,000 volts (a 1.2 µS/50 µS pulse).
•
All inputs are protected against continuous overload conditions up to the limits of
each function's stated input protection (see specifications). Never exceed these limits or the
ratings marked on the instrument itself.
•
Exercise extreme caution when: measuring voltag e >20 V, current >10 mA, ac power
line with inductive loads, ac power line during electrical storms. High voltages can be lethal
and high voltage transients may occur at any time.
•
Operator injury or damage to the multimeter may occur during current measurements
if the fuse blows in a circuit with open circuit voltage exceeding 1000 V ac/1500 V dc.
•
Always inspect your DMM, test leads and accessories for signs of damage or
abnormality before use. If an abnormal condition exists (broken or damaged test leads,
cracked case, display not reading, etc.), do not use. The internal fuse cover is integral to the
EN61010-1 Cat IV safety rating and must be in place to avoid potential shock hazards
•
When testing for voltage or current, make sure these ranges function correctly. Take a
reading of a known voltage or current first.
•
Never ground yourself when taking measurements. Do not touch exposed metal pipes,
outlets, fixtures, etc., which might be at ground potential. Keep your body isolated from
ground and never touch exposed wiring, connections, test probe tips, or any live circuit
conductors. Do not use the Flex-Strap to attach the meter to your body.
•
Always measure current in series with the load – NEVER connect the multimeter