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How to choose the best DMM for your job
2
ir3000 FC Connector
Adds the power of the
Fluke Connect
®
mobile app
to your measurements.
• Fits over the IR port of
your existing Fluke tools
(289, 287 or 789)
• Enables you to graph,
save, and share readings
with your team from
your smart phone
a3000 FC Wireless AC
Current Clamp Meter
• Measure up to 400 A ac
true-rms
• Inrush function
• Logging function for
recording and saving up
to 65,000 readings
a3001 FC Wireless iFlex
AC Current Clamp Meter
• Measure up to 2500A
ac with a true-rms
flexible current meter
• Record over time (up
to 65,000 readings)
to monitor circuit load
changes for an hour, a
shift or a week
• Inrush function
a3003 FC Wireless DC
2000 A Current Meter
• Measure up to
2000 A dc
• Large jaw size (64 mm)
for measuring large
or parallel current
conductors
• Logging function for
recording and saving up
to 65,000 readings
Wirelessly relay data with Fluke Connect
®
Meters
Meters can be used as a stand-alone tool or as part of the Fluke Connect system
The largest
system of
software and
wireless test
tools in
the world.
Learn more at flukeconnect.com
Choosing the right digital multimeter
(DMM) requires thinking about what
you’ll be using it for. Evaluate your
basic measurement needs and job
requirements and then take a look
at special features/functions built
into many multimeters. Think about
whether you need to do basic mea-
surements, or if you need the more
advanced troubleshooting options
offered by special features.
Factors to consider:
•
Your work environment (voltage level,
types of equipment, types of measure-
ments, applications)
•
Specialty features/functions (capac-
itance, frequency, temperature,
non-contact voltage, low impedance
mode, min/max record, data logging,
trending)
•
Resolution and accuracy (6,000,
20,000, or 50,000 count resolution)
Safety
The increased occurrence and levels
of transient overvoltages in today’s
power systems have given rise to more
stringent safety standards for electrical
measurement equipment. Transients
that ride on top of power sources
(mains, feeder or branch circuits) can
trigger a sequence of events that may
lead to serious injury. Test equipment
must be designed to protect people
working in this high-voltage, high-
current environment.
Measurement categories at a glance
In brief Examples
CAT IV Three-phase at utility
connection, any outdoor
mains conductors
• Refers to the “origin of installation,” i.e.,
where low-voltage connection is made
to utility power
• Electricity meters, primary overcurrent
protection equipment
• Outside and service entrances, service
drop from pole to building, run between
meter and panel
• Overhead line to detached building,
underground line to well pump
CAT III Three-phase
distribution, including
single-phase
commercial lighting
• Equipment in fixed installations, such as
switchgear and polyphase motors
• Bus and feeders in industrial plants
• Feeders and short branch circuits,
distribution panel devices
• Lighting systems in larger buildings
• Appliance outlets with short connections
to service entrance
CAT II Single-phase receptacle
connected loads
• Appliance, portable tools, and other
household and similar loads
• Outlet and long branch circuits
– Outlets at more than 10 meters
(30 feet) from CAT III source
– Outlets at more that 20 meters
(60 feet) from CAT IV source