Amprobe BDM40-UA Bench-Digital-Multimeter User Manual
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CONTENTS
CERTIFICATIONS AND PRECAUTIONS............................................................. 3
SYMBOLS USED IN THIS MANUAL .................................................................... 3
FOR UNITED KINGDOM ONLY............................................................................ 4
INTRODUCTION ................................................................................................... 4
UNPACKING YOUR INSTRUMENT ..................................................................... 5
GETTING ACQUAINTED ...................................................................................... 5
USING YOUR METER .......................................................................................... 5
OPERATING GUIDELINES................................................................................... 7
MEASUREMENT TECHNIQUES.......................................................................... 8
VOLTAGE MEASUREMENTS ............................................................................ 10
CURRENT MEASUREMENTS............................................................................ 14
RESISTANCE MEASUREMENTS ...................................................................... 15
DIODE MEASUREMENT .................................................................................... 16
MAINTENANCE AND REPAIR ........................................................................... 22
SPECIFICATIONS............................................................................................... 24
OPTIONAL ACCESSORIES ............................................................................... 27
CERTIFICATIONS AND PRECAUTIONS
This instrument is EN61010-1 certified for Installation Category I -1200V; Pollution Degree II, Class 2. It may only
be used to make measurements on energy limited circuits within equipment. 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. Always inspect your Multimeter, test
leads and accessories for signs of damage or abnormality before every use. If an abnormal condition exists
(broken or damaged test leads, cracked case, display not reading, etc.), do not use. 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 operate instrument in an explosive atmosphere (flammable gases, fumes,
vapor, dust.) Do not use this or any piece of test equipment without proper training.
SYMBOLS USED IN THIS MANUAL
W
Refer to the manual
B
Alternating Current
X
Dangerous voltage
F
Direct Current
T
Double Insulation
P
Complies with EU
directives
J
Earth Ground
G
Diode