Fluke 190-104-III 100 MHz 4 Channels ScopeMeter


Key Features:

  • 4 Channels, 100 MHz bandwidth, 3.5 ns rise time
  • Up to four independent floating isolated inputs, up to 1000 V
  • Up to 5 GS/s real time sampling (depending on model and channels used)
  • Deep memory: 10,000 points per trace waveform capture (scope mode)
  • CAT III 1000 V/CAT IV 600 V safety rated instrument for industrial environments
  • Up to seven hours of battery operation using BP291
  • Large, bright color display is easy to view in nearly any environment
  • Easy to store and view historical data and transfer to a PC via USB or Wifi
  • Convenient battery access door for quick battery swaps in the field
  • IP51 rating, dust and drip-proof
  • Connect-and-View triggering for intelligent, automatic triggering on fast, slow and even complex signals
  • Frequency spectrum using FFT-analysis
  • Automatic capture and REPLAY of 100 screens
  • ScopeRecord mode gives 30,000 points per input channel for low frequency signal analysis
  • TrendPlot Paperless Recorder mode with deep memory for long- term automatic measurements
Product Options:

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The Fluke 190-104-III is part of the Fluke 190 Series III ScopeMeter series that has 4 channels with a bandwidth of 100 MHz and 3.5 ns rise time.



  • • ScopeMeter 190-104-III
  • • BC190/830 power adapter
  • • Power cord set
  • • BP291 Li-ion battery pack
  • • VPS421 probe (4x)
  • • Hand strap
  • • Hanging strap
  • • USB-cable
  • • Printed instructions

Oscilloscope modes









Vertical deflection

Number of channels









60 MHz

100 MHz

200 MHz

500 MHz

100 MHz

200 MHz

500 MHz

Rise time

5.8 ns

3.5 ns

1.7 ns

0.7 ns

3.5 ns

1.7 ns

0.7 ns

Number of scope inputs

2 input channels plus external trigger

4 input channels

Channel architecture

All inputs fully insulated from each other and from ground. Inputs may be activated in any combination

Input coupling

AC or DC, with ground level indicator

Input sensitivity

With 10:1 probe, 20 mV to 1000 V/div
With 100:1 probe, 200 mV to 10 kV/div
Direct (1:1), 2 mV to 100 V/div

Bandwidth limiter

20 MHz and 10 kHz


Normal, Inverted, Variable

Input voltage

CAT III 1000 V/CAT IV 600 V rated, see General specifications for further details

Vertical resolution

8 bit

Accuracy at 4 s to 10 ps/div

5 mV/div to 100 V/div, ±(1.5 % + 6 counts)
2 mV/div, ±(1.5 % + 10 counts)

Input impedance

1 MO (± 1 %) // 15 pF (± 2.25 pF)











Maximum real-time sample rate (sampled simultaneously)

625 MS/s
(each channel)

1.25 GS/s
(each channel)

2.5 GS/s
(each channel)

5 GS/s (single
channel) or
2.5 GS/s (dual channel)

1.25 GS/s
(each channel)

2.5 GS/s (2ch)
1.25 GS/s (4ch)

5 GS/s (single
ch) or 2.5 GS/s
(2ch) or 1.25 GS/s (4ch)

Record length

Up to 10,000 samples per channel

Time base range

10 ns/div
to 4 s/div

5 ns/div
to 4 s/div

2 ns/div
to 4 s/div

1 ns/div
to 4 s/div

5 ns/div
to 4 s/div

2 ns/div
to 4 s/div

1 ns/div
to 4 s/div

Time base in a 1-2-4-sequence
Slower time/division settings using ScopeRecordTM Roll mode (see ‘Recorder mode’)

Maximum record length

10,000 samples per channel in scope mode
30,000 points per channel in ScopeRecordTM Roll mode (see ‘Recorder mode’)

Timing accuracy

± (0.01 % of reading + 1 pixel)

Glitch capture

8 ns (10 µs/div to 2 min/div)

Display and acquisition


133 mm x 90 mm (5.3 in x 3.5 in) full-color high brightness LCD

Display modes

Any combination of channels; average on/off; replay.

Visible screen width

12 divisions horizontally in scope mode

Digital persistence modes

Off, short, medium, long, infinite and envelope mode

Waveform mathematics

One (190-xx2) or two (190-x04) mathematical operations on 2 input channels (A and B, C and D):
add, subtract, multiply; X-Y-mode; Frequency Spectrum using FFT

Acquisition modes

Normal, Averaged, Auto, Single Shot, ScopeRecordTM roll, glitch capture,
waveform compare with automatic “Pass/Fail testing”; Replay

Trigger and delay


Input A, B or External (via meter input)

Input A, B, C or D


Automatic, Edge, Pulse Width, N-Cycle, External (190-xx2)


Advanced automatic triggering that recognizes signal patterns, automatically sets up and continuously adjusts triggering, time base and amplitude. Automatically displays stable waveforms of complex and dynamic signals like motor drive and control signals. Can be switched off if preferred.

Pulse width triggering (on channel A)

Pulse width qualified by time
Allows for triggering <t, >t, =t, ≠ t, where t is selectable in minimum steps of 0.01 div or 50 ns

Time delay

1 full screen of pre-trigger view or up to 100 screens (=1,200 divisions) of post-trigger delay

Dual slope triggering

Triggers on both rising and falling edges alike

N-cycle triggering

Triggers on N-th occurrence of a trigger event; N to be set in the range 2 to 99

Automatic capture of 100 screens

When in oscilloscope mode, the instrument ALWAYS memorizes the last 100 screens—no specific user setup required. When an anomaly is seen, the REPLAY button can be pressed to review the full sequence of screen events over and over. Instrument can be set up for triggering on glitches or intermittent anomalies and will operate in “baby-sit” mode capturing 100 specified events.


Manual or continuous replay. Displays the captured 100 screens as a “live” animation, or under manual control. Each screen has date and time-stamp.

Replay storage

Ten sets of 100 screens each can be saved internally for later recall and analysis. Direct storage of additional sets on external flash memory drive through USB host port.

FFT—frequency spectrum analysis

Shows frequency content of oscilloscope waveform using Fast Fourier Transform


Automatic, Hamming, Hanning or None

Automatic window

Digitally re-samples acquired waveform to get optimum frequency resolution in FFT resultant.

Vertical scale

Linear/Logarithmic (in volts or amps)

Frequency axis

Frequency range automatically set as a function of timebase range of oscilloscope

Waveform compare and pass/fail testing

Waveform compare

Provides storage and display of a reference waveform for visual comparison with newly acquired waveforms. Reference is derived from an acquired waveform and can be modified in the oscilloscope.

Pass/Fail testing

In waveform compare mode, the oscilloscope can be set up to store only matching (“Pass”) or only non-matching (“Fail”) acquired waveforms in the replay memory bank for further analysis.

Automatic scope measurements

V dc, V ac rms, V ac+dc, Vpeak max, Vpeak min, Vpeak to peak, A ac, A dc, A ac+dc, frequency (in Hz), rise time (using cursors), fall time (using cursors), Power Factor (PF), Watts, VA, VA reactive, phase (between 2 inputs A&B or C&D), pulse width (pos./neg.), duty cycle (pos./neg.), temperature °C, temperature °F (not for Japan), dBV, dBm into 50 Ω and 600 Ω, VPWM ac and VPWM(ac+dc) for measurement on pulse width modulated motor drives and frequency inverters, V/Hz ratio

Advanced power and motor drive functions

V/Hz ratio, Power Factor (PF), Watts, VA, VA reactive, V-PWM (ac) and V-PWM (ac+dc) for measurement on pulsewidth modulated motordrives and frequency inverters

Cursor measurements


On any input waveform or on mathematical resultant waveform (excl. X-Y-mode)

Dual horizontal lines

Voltage at cursor 1 and at cursor 2, voltage between cursors

Dual vertical lines

Time between cursors, 1/T between cursors (in Hz), voltage between markers, risetime with markers, falltime with markers; Vrms between cursors, Watts between cursors.

Single vertical line

Min-Max and Average voltage at cursor position; frequency and rms-value of individual frequency component in the FFT Resultant

Advanced functions

mA*s (current-over-time, between cursors); V*s (voltage over time, between cursors); W*s (energy, between cursors)


Ranges from full record overview to zoom in up to sample level, at any record length.


Meter modes









Meter inputs

Via 4 mm banana inputs, fully isolated from scope inputs and scope ground

Via BNC scope inputs

Number of

One at a time via DMM input

Up to 4 automatic scope measurements simultaneously


5,000 counts

± 999 counts
(frequency: 9999 counts)

Input impedance

1 MΩ (± 1 %) // 14 pF (± 1.5 pF)

1 MΩ (± 1 %) // 15 pF (± 2.25 pF)

Advanced meter functions

Auto/manual ranging, relative measurements (Zero reference), TrendPlot™ recording


The specified accuracy is valid over the temperature range 18 °C to 28 °C
Add 10 % of specified accuracy for each degree C below 18 °C or above 28 °C


V dc accuracy

± (0.5 % + 6 counts)

± (1.5 % + 6 counts)

V ac true rms accuracy

15 Hz to 60 Hz

± (1 % + 10 counts)

± (1.5 % + 10 counts)

60 Hz to 1 kHz

± (2.5 % + 15 counts)

60 Hz to 20 kHz

± (2.5 % + 15 counts)

V ac+dc true rms accuracy

15 Hz to 60 Hz

± (1 % + 10 counts)

± (1.5 % + 10 counts)

60 Hz to 1 kHz

± (2.5% + 15 counts)

60 Hz to 20 kHz

± (2.5 % + 15 counts)

Voltmeter ranges

500 mV, 5 V, 50 V, 500 V, 1,100 V



500 Ω, 5 kΩ, 50 kΩ, 500 kΩ, 5 MΩ, 30 MΩ


± (0.6 % + 6 counts)

Other meter functions


Beeper on < 50 Ω (± 30 Ω)

Diode test

Up to 2.8 V

Current (A)

A dc, A ac, A ac+dc using an optional current clamp or shunt Scaling factors: 0.1 mV/A, 1 mV/A to 100 V/A and 400 mV/A


With optional accessories. Scale factors 1mV/°C or 1mV/°F


Recorder mode









ScopeRecord™ Roll Mode

Dual or multiple input waveform storage mode, using deep memory

Source and

Input A, Input B, Dual
All channels sampled simultaneously

Any combination of inputs, up to 4 channels. All channels sampled simultaneously

Memory depth

30,000 data points per channel, each holding min/max pair of information

Min/max values

Min/max values are created at samples that are measured at high sample rate ensuring capture and display of glitches.


Single sweep, continuous roll; Start-on-Trigger (through external); Stop-on-Trigger (through external)

Single sweep, continuous roll; Start-on-Trigger (through any channel); Stop-on-Trigger (through any channel)


ScopeRecord mode can be stopped by an individual trigger event, or by an interruption of a repetitive trigger signal, through any input channel (through External on 190-XX2 Series)

Horizontal scale

Time from start, time of day


Ranges from full record overview to zoom in up to sample level


Two multiple input ScopeRecord waveforms can be saved internally for later recall and analysis.

ScopeRecord™ Roll mode sample rate and recording timespan

Time base range

4 ms/div to 2 min/div

Recorded timespan

4.8 sec to 40 hr

Time/division in
‘view all’ mode

0.4 s/div to 4 h/div

Glitch capture

8 ns

Sample rate

125 MS/s


160 μsec ~ 4.8 sec

Trendplot™ Recording

Multiple channel electronic paperless recorder. Graphically plots, displays and stores results of up to four automatic scope measurements or a DMM-reading over time.

Source and display

Any combination of scope measurements, made on any of the input channels, or DMM reading (2-channel instruments)

Memory depth

19,200 points (sets) per recording. Each recorded sample point contains a minimum, a maximum and an average value, plus a date- and time-stamp.


Normal view: 5 s/div to 30 min/div; In view-all mode: 5 min/div to 48 hr/div (overview of total record)

Recorded time span

Up to 22 days, with a resolution of 102 seconds; up to 5.5 days for 4 readings.

Recording mode

Continuous recording, starting at 5 s/div with automatic time-scale compression

Measurement speed

Three automatic measurements per second or more

Horizontal scale

Time from start, time of day


Up to 64x zoom-out for full record overview, up to 10x zoom-in for maximum detail


Two multiple input TrendPlot records can be saved internally for later recall and analysis.

Cursor measurements—all recorder modes


Any waveform trace in any waveform display mode (Scope, ScopeRecord or TrendPlot)

Dual vertical lines

Cursors may be used to identify Min, Max or Average value of any datapoint in a record, with time between cursors, time from start or absolute time.


General specifications









Input voltage range

Rated maximum
floating voltage

CAT III 1000 V / CAT IV 600 V (maximum voltage between any contact and earth-ground voltage level)

Probe input voltage VPS410-II

CAT III 1000 V / CAT IV 600 V (Maximum voltage between standard 10:1 probe tip and reference lead)

Probe input voltage VPS421

CAT III 1000V / CAT IV 600V (Maximum voltage between probe tip or reference lead to GND, 2000V max between probe tip and reference lead)

Maximum BNC input voltage

CAT IV 300 V (maximum voltage on BNC input directly)

Maximum volt­age on meter input

CAT III 1000 V / CAT IV 600 V
(safety designed banana input connectors)

Memory save and recall

Memory locations

30 waveform memories plus 10 recording memories plus 9 screen copy memories

30 waveform memories

Each memory can contain up to 2 or 4 waveforms plus corresponding setups.

10 recording memories

Each may contain: a 100 Screen Replay sequence, or a ScopeRecord Roll-mode recording (2 or 4 traces), or a TrendPlot recording of up to 4 measurements

External data storage

On PC, using FlukeViewTM-2 Software, or direct storage on external flash memory drive (maximum 32 GB) through USB host port


On PC, using FlukeViewTM-2 Software, or internally (in instrument) which can be copied on to external flash memory drive as .BMP-file, through USB host port


Saving is done in non-volatile Flash-ROM and all data is secured, independent of battery or power status.

Real-time clock

Provides date and time stamp information for ScopeRecord, for 100 Screen Replay sequences and for TrendPlot recordings.



Rugged, shock-proof with integrated protective holster. Handstrap and hangstrap included as standard. Kensington lock supported to lock down instrument when left unattended.

Drip and dust proof

IP 51 according to IEC60529

Shock and vibration

Shock 30 g, vibration (sinusoidal) 3 g / 0.03 g2/Hz (Random), according to MIL-PRF-28800F Class 2

Display size

133 mm x 90 mm (5.3 in x 3.5 in) LCD


1120 pixels x 765 pixels


User-adjustable, up to 300 cd/m2

Mechanical data


265 mm x 192 mm x 70 mm (10.5 in x 7.6 in x 2.8 in)

(including battery)

2.1 kg (4.6 lb)

2.2 kg (4.8 lb)


Line power

Universal mains adapter/battery charger BC190/830 included, with detachable 2-wire power cords 100 Vac to 240 Vac, ±10 %, 50-60 Hz

Battery power

Re-chargeable Li-Ion battery (included). Battery swappable through easily accessible battery door at the rear of the instrument

Battery type (incl.) and capacity [+opt. battery]

BP290: 10.8V, 2500 mAh
[BP291 (5000 mAh) optional]

BP291: 10.8V, 5000 mAh

Battery charge

Battery has built-in status indicator for use with external charger, next to battery status indicator on instrument screen.

Battery operating
time (with
backlight low)

Up to 3.5 using BP290 (included), up to 7 hours using BP291 (optional)

Up to 7 hours using BP291 (included)

charging time

2½ hours using BP290; 5 hours using BP291

Five hours for BP291

power saving

Auto ‘power down’ with adjustable power down time.
Automatic ‘display off’ with adjustable power down time.
On-screen battery power indicator



EN61010-1, Pollution Degree 2;
IEC 61010-2-030: CAT IV 600 V / CAT III 1000 V



Battery discharging: 0 °C to 40 °C (32 °F to 104 °F)
Battery charging: 0 °C to 40 °C (32 °F to 104 °F)


-20 °C to 60 °C (-4 °F to 140 °F)


0 °C to 10 °C (32 °F to 50 °F): noncondensing
10 °C to 30 °C (50 °F to 86 °F): 95 % (±5 %)
30 °C to 40 °C (86 °F to 104 °F): 75 % (±5 %)
40 °C to 50 °C (104 °F to 122 °F): 45 % (±5 %)


CAT IV 600 V, CAT III 1000 V: up to 2000 m (6 600 feet)
CAT IV 300 V, CAT III 600 V, CAT II 1000 V: up to 4000 m (13 000 feet)

storage altitude

12 km (40,000 ft)


IEC 61326-1: Industrial;
CISPR 11: Group 1, Class A;
Korea (KCC): Class A Equipment (Industrial Broadcasting and Communication Equipment):
USA (FCC): 47 CFR 15 subpart C.


Two USB-ports provided. Ports are fully insulated from instrument’s floating measurement circuitry. USB-host port directly connects to external flash memory drive (up to 32 GB) for storage of waveform data, measurement results, instrument settings and screen copies. Alternatively, this USB-A port may be used to connect a WiFiAdapter for wireless PC connectivity. A mini-USB-B is provided which allows for interconnection to PC for remote control and data transfer under PC-control using FlukeView-2.


Dedicated probe-cal output with reference contact provided, fully insulated from any measurement input channel.
Generator Output: 1.225 Vpp / 500 Hz square wave


3 years on main instrument, 1 year on battery and accessories



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