TECHNICAL DATA
Fluke 120B Series Industrial
ScopeMeter
®
Hand-Held Oscilloscopes
Simplified testing, more insight and faster
electro-mechanical troubleshooting
The compact ScopeMeter
®
120B Series, is the rugged oscilloscope
solution for industrial electrical and electro-mechanical equip-
ment troubleshooting and maintenance applications. It’s a truly
integrated test tool, with oscilloscope, multimeter and high-speed
recorder in one easy-to-use instrument. The ScopeMeter 120B
Series also integrates with Fluke Connect
®
mobile app and
FlukeView
®
for ScopeMeter software to enable further collabora-
tion, data analysis and archiving of critical test information.
The 120B Series Industrial ScopeMeter Test Tools include innova-
tive functions designed to help technicians troubleshoot faster and
get the answers they need to keep their systems up and running.
Display waveforms with Connect and View
™
trigger and setup
technology and automatically view related numerical measure-
ments using Fluke IntellaSet
™
technology, all without making
manual measurement adjustments. With Recorder Event Detect
capabilities, elusive intermittent events are captured and logged
for easy viewing and analysis.
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KEY MEASUREMENTS
Voltage, current and power waveforms
with numerical values including harmonics,
resistance, diode, continuity and
capacitance measurements.
AUTOMATICALLY CAPTURE, VIEW AND
ANALYZE COMPLEX WAVEFORMS
Fluke Connect and View
™
triggering
automatically displays waveforms without
having to adjust amplitude, timebase and
trigger settings, while Intellaset
™
technology
analyzes the signal and automatically
displays critical numerical readings, making
troubleshooting faster than ever.
FLUKE CONNECT
®
COMPATIBLE*
View data locally on the instrument,
or via Fluke Connect mobile app.
*Not all models are available in all countries.
Check with your local Fluke representative.
Dual-input digital oscilloscope and multimeter
40 MHz or 20 MHz oscilloscope bandwidth
Two 5,000-count true-rms digital multimeters
Connect-and-View
™
trigger simplicity for hands-off operation
IntellaSet
™
technology automatically and intelligently adjusts
numerical readout based on the measured signal
•
Dual-input waveform and meter reading recorder for
trending data over extended periods
•
Recorder Event Detect captures elusive intermittent signals on
repetitive waveforms up to 4 kHz
•
Shielded test leads for oscilloscope, resistance and
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*Not all models are available in all countries. Check with
your local Fluke representative.
continuity measurements
Resistance, continuity, diode and capacitance meter
measurements
Power measurements (W, VA, VAR, PF, DPF, Hz)
Voltage, current and power harmonics
Check Industrial networks with BusHealth physical layer tests
against defined reference levels
Save or recall data and instrument setups
Store instrument setups defined by a test sequence for routine
maintenance or most often used test procedures.
External optically isolated USB interface to transfer, archive
and analyze scope or meter data
Optional WiFi adapter connected to internal USB port to
wirelessly transfer information to the PC, laptop or
Fluke Connect
®
mobile app*
FlukeView
®
ScopeMeter
®
Software for Windows
®
Rugged design to withstand 3g Vibration, 30g shock, and
rated IP51 according to EN/IEC60529
Highest safety rating in the industry: safety rated for
CAT IV 600 V
Li-Ion rechargeable battery, seven-hours operation (with
four-hour charge time)
Connect-and-View
™
triggering for an instant,
stable display
Oscilloscope users know how
difficult triggering can be.
Using the wrong settings can
lead to unstable waveform
captures, and sometimes the
wrong measurement data.
Fluke’s unique Connect-and-
View
™
triggering technology
recognizes signal patterns, and
automatically sets up the correct
triggering to provide a stable,
reliable and repeatable display.
Connect-and-View
™
triggering
is designed to work with virtu-
ally any signal, including motor
drives and control signals—
without adjusting parameters,
or even touching a button.
Signal changes are instantly
recognized and settings are
automatically adjusted, provid-
ing a stable display even when
measuring multiple test points
in quick succession.
IntellaSet
™
/AutoReading
The Auto Readings function
with Fluke IntellaSet
™
technol-
ogy uses proprietary algorithms
to intelligently analyze the
measured waveform and auto-
matically displays the most
appropriate numerical measure-
ments on screen, so you can get
the data you need easier than
ever before. As an example,
when the measured wave-
form is a line voltage signal,
the Vrms and Hz readings
are automatically displayed,
whereas if the measured
waveform is a square wave, the
Vpeak-peak and Hz readings
are automatically displayed.
Using IntellaSet
™
technology
in conjunction with Connect-
and-View
™
automatic triggering
you can be sure you’re seeing
not only the correct wave-
form, but the appropriate
numerical reading as well. All
without touching a button.
Fluke Connect-and-View
™
triggering
with Auto Reading function using Fluke
IntellaSet
™
technology gives you quick
access to the data you need.
2 Fluke Corporation
Fluke 120B Series Industrial ScopeMeter
®
Hand-Held Oscilloscopes
Industrial equipment needs a reliable power supply to
operate properly, use the dual input to obtain key power
measurements.
For single phase or 3-phase balanced systems, the dual inputs
of the Industrial ScopeMeter
®
120B Series can measure ac+dc
rms voltage on channel A and ac+dc rms current on channel
B. The Fluke 125B can then calculate; frequency, phase angle,
active power (kW), reactive power (VA or var), power factor (PF)
or displacement power factor (DPF) and can also calculate the
power values for a 3-phase system where all phases have equal
voltage and currents. This applies to both balanced system and
resistive loads.
Easily obtain key power characteristics to validate a system
power.
Harmonics measurements
Harmonics are periodic distortions of voltage,
current, or power sine waves. Harmonics in
power distribution systems are often caused
by non-linear loads such as switched mode
dc power supplies and adjustable speed motor
drives. Harmonics can cause transformers,
conductors, and motors to overheat. In the
Harmonics function, the Test Tool measures
harmonics to the 51st. Related data such as dc
components, THD (Total Harmonic Distortion),
and K factor are measured to provide a com-
plete insight in to the electrical state of health
of your loads.
FlukeView
®
ScopeMeter
®
Software for Windows
®
Get more out of your ScopeMeter
120B with FlukeView
®
Software:
•
Store instrument’s screen
copies on the PC, in color
•
Copy screen images into your
reports and documentation
•
Capture and store waveform
data from your ScopeMeter
on your PC
•
Create and archive wave-
form references for easy
comparison
•
Copy waveform data into
your spreadsheet for detailed
analysis
•
Use cursors for parameter
measurement
•
Add user text to instrument
setups and send them to the
instrument for operator refer-
ence and instructions
Harmonic spectrum overview with cursors
to measure the distortion as a percentage
of the fundamental.
One test lead to measure multiple
electrical parameters
High frequency waveform, meter, capacitance and
resistance measurements as well as continuity
checks are all covered by single set of shielded
test leads. No time is wasted finding or swapping
leads.
A single test tool measures volts, ohms,
amps or capacitance, in addition to
displaying waveforms.
3 Fluke Corporation
Fluke 120B Series Industrial ScopeMeter
®
Hand-Held Oscilloscopes
Quickly step through recorded events
to identify and troubleshoot intermittent
faults.
Quickly understand industrial field bus
signal physical layer analog characteristics.
Fluke Connect mobile app
compatibility
Automated industrial machinery
is harder than ever to trouble
shoot. It’s not enough to just
know where you have to test,
you also have to know what to
look for—and that can be hard
without baseline measurement
data or access to subject matter
experts. The Fluke Connect
®
Assets wireless system of
software and wireless test tools
enables technicians to reduce
maintenance costs and increase
uptime with accurate equip-
ment records and maintenance
data that is easy to interpret,
and share. Compare and
contrast test point measure-
ment data and trends so you
can better understand signal
characteristics and changes
over time. And, by storing
maintenance data on the Fluke
Cloud
™
you can enable team
members to access it from
wherever and whenever they
need to so you can get advice
or approvals in the field and
get your systems up and run-
ning faster than ever before.
Use the comprehensive
recorder modes to help find
intermittent faults with ease
The toughest faults to find are
those that happen only once
in a while—intermittent events.
They can be caused by bad
connections, dust, dirt, corro-
sion or simply broken wiring
or connectors. Other factors,
like line outages and sags or
the starting and stopping of
a motor, can also cause inter-
mittent events resulting in
equipment shutdowns. When
these events happen, you may
not be around to see it. But,
your Fluke ScopeMeter
®
Test
Tool will. You can either plot the
minimum and maximum peak
measurement values or record
the waveform trace. And, with
expandable micro SD memory,
recording sessions can be done
for up to 14 days. This recorder
is even more powerful with
the addition of Recorder Event
Detect, which makes detect-
ing and logging intermittent
faults easier than ever. Just set a
threshold on a meter reading or
scope trace and deviations are
tagged as unique events. You no
longer need to search through
masses of data to pinpoint faults,
and can quickly step from one
tagged event to the next, while
still having access to the full
data set.
Industrial Bus Health Test
verifies electrical signal
quality on industrial buses
Bus Health Test analyzes the
electrical signals on the indus-
trial bus or network and gives
a clear “Good”, “Weak” or “Bad”
indication mark for each of the
relevant parameters, presented
next to the actual measurement
value. Measured values are
compared to standard values
based on the selected bus types
(CAN-bus, Profi-bus, Foundation
Field, RS-232 and many more),
or, unique reference values
can be set if different toler-
ances are required. The Fluke
125B can validate the quality
of the electrical signals as soon
as they are passed along the
network, without looking at the
data content. Additionally, the
125B checks the signal levels
and speed, transition times and
distortion, and compares these
to the appropriate standards
to help you find errors such as
improper cable connections, bad
contacts, incorrect grounding or
improper terminators.
4 Fluke Corporation
Fluke 120B Series Industrial ScopeMeter
®
Hand-Held Oscilloscopes
Specifications
Oscilloscope mode
Vertical
Frequency response - dc coupled
without probes and test leads (with BB120)
with STL120-IV 1:1 shielded test leads
with VP41 10:1 Probe
Frequency response - ac coupled
(lf roll off)
without probes and test leads
with STL120-IV 1:1 shielded test leads
with VP41 10:1 Probe
Rise time, excluding probes,
test leads
Input impedance
123B <17.5 ns
124B and 125B <8.75 ns
without probes and test leads
with BB120
with STL120-IV 1:1 shielded test leads
with VP41 10:1 Probe
Sensitivity
Analog bandwidth limiter
Display modes
Max. input voltage A and B
Max. floating voltage, from any
terminal to ground
Horizontal
Scope modes
Ranges (Normal)
Normal, Single, Roll
Equivalent sampling
Real time sampling
Single (real time)
Roll (real time)
Sampling rate (for both channels
simultaneously)
Trigger
Screen update
Source
Sensitivity A and B
Free run, on trigger
A, B
@ DC to 5 MHz
@ 40 MHz
@ 60 MHz
Slope
Advanced scope functions
Display modes
Normal
Smooth
Glitch off
Envelope
Auto set (Connect-and-View™)
5 Fluke Corporation
123B: dc to 20 MHz (-3 dB)
124B and 125B: dc to 40 MHz (-3 dB)
DC to 12.5 MHz (-3 dB) / dc to 20 MHz (-6 dB)
123B: dc to 20MHz (-3 dB)
124B and 125B: dc to 40 MHz (-3 dB)
<10 Hz (-3 dB)
<10 Hz (-3 dB)
<10 Hz (-3 dB)
1 MΩ//20 pF
1 MΩ//24 pF
1 MΩ//230 pF
5 MΩ//15.5 pF
5 mV to 200 V/div
10 kHz
A, -A, B, -B
direct, with test leads, or with VP41 Probe
with BB120
600 Vrms CAT IV, 750 Vrms up to 400Hz
600 Vrms CAT IV, 750 Vrms maximum voltage.
600 Vrms
123B: 20 ns to 500 ns/div,
124B and 125B: 10 ns to 500 ns/div
1 μs to 5 s/div
1 μs to 5 s/div
1s to 60 s/div
up to 4 GS/s
40 MS/s
Equivalent sampling (repetitive signals)
Real time sampling 1 μs to 60 s/div
0.5 divisions or 5 mV
123B: 4 divisions
124B and 125B: 1.5 divisions
123B: N/A
124B and 125B: 4 divisions
Positive, negative
Captures up to 25 ns glitches and displays
analog-like persistence waveform.
Suppresses noise from a waveform.
Does not capture glitches between samples
Records and displays the minimum and
maximum of waveforms over time.
Continuous fully automatic adjustments of amplitude, time base, trigger levels, trigger gap, and
hold-off. Manual override by user adjustment of amplitude, time base, or trigger level.
Fluke 120B Series Industrial ScopeMeter
®
Hand-Held Oscilloscopes
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