Product Overview: Fluke 120B Series Industrial ScopeMeter®
The Fluke 120B Series Industrial ScopeMeters include innovative 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 measurements 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.
Fluke 120B Key Features
- Dual-input digital oscilloscope and multimeter
- 40 MHz or 20 MHz oscilloscope bandwidth
- Two 5,000-count true-RMS digital multimeters
- Dual input to obtain key power measurements
- Shielded test leads for oscilloscope, resistance, and 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
- Save or recall data and instrument setups
- Store instrument setups for routine maintenance
- External optically isolated USB interface for data transfer and analysis
- Optional WiFi adapter for wireless connection to PC, laptop, or Fluke Connect® mobile app*
- FlukeView® ScopeMeter® Software for Windows®
- Rugged build: withstands 3g vibration, 30g shock, rated IP51
- CAT IV 600 V industry-high safety rating
- Li-Ion rechargeable battery (7-hour operation, 4-hour charge time)
Smart Triggering & Auto Readings
Connect-and-View™ Triggering
Eliminates the need for manual setup by automatically detecting signal patterns and adjusting trigger settings for a stable waveform display—ideal for variable signals like motor drives and control systems.
IntellaSet™ Auto Readings
Analyzes waveforms in real-time and displays the most relevant measurements, such as Vrms and Hz for line voltage or Vpeak-peak and Hz for square waves—no button presses needed.
Power Quality Analysis
With dual inputs, the 120B Series can measure AC+DC RMS voltage and current simultaneously. The Fluke 125B calculates:
- Frequency
- Phase angle
- Active power (kW)
- Reactive power (VA or VAR)
- Power factor (PF)
- Displacement power factor (DPF)
It also supports single-phase and balanced 3-phase systems.
Harmonics Measurement
Harmonic Spectrum Analysis
Measures harmonics up to the 51st order, along with related data such as:
- DC components
- Total Harmonic Distortion (THD)
- K factor
This helps identify sources of distortion from non-linear loads like adjustable speed drives, ensuring electrical system health.
Long-Term Recording & Fault Detection
Recorder Event Detect Function
Captures elusive, intermittent faults caused by dust, corrosion, bad connections, or power fluctuations. Features include:
- Waveform or min/max peak plotting
- Session recording for up to 14 days
- Threshold-based event tagging
- Easy playback of recorded events
Industrial BusHealth Testing
Bus Signal Quality Analysis
Analyzes electrical signals on networks such as CAN-bus, Profi-bus, RS-232, and more. Features:
- “Good,” “Weak,” or “Bad” ratings for each parameter
- Comparison to bus-specific standards or custom reference values
- Checks for grounding issues, transition timing errors, or bad connections
- Validates signal integrity without analyzing content
Versatile Test Lead Use
A single set of shielded test leads supports:
- Oscilloscope measurements
- Capacitance and resistance checks
- Continuity testing
- High-frequency waveform and meter readings
No need to switch leads during tests.
FlukeView® ScopeMeter® Software for Windows®
- Save screen captures in color
- Insert images into reports and documentation
- Archive waveform data and setups
- Compare current waveforms with references
- Use cursors for precise measurement
- Add text instructions to setups for field use
*Note: Some features may vary by ScopeMeter model.
Fluke Connect® Mobile App Integration
Troubleshooting is faster and more collaborative with Fluke Connect®. The system:
- Shares real-time equipment data
- Reduces maintenance costs
- Improves uptime through trend analysis
- Enables remote team access via the Fluke Cloud™
Included with each model:
- Fluke 120B Series Industrial ScopeMeter®
- (1 pair) Shielded test leads with black ground leads
- (1 pair) Test lead black (for grounding)
- (1 set) Hook clips (red, blue)
- (1) Banana-to-BNC adapters (black)
- USB angled adapter
- WiFi USB Adapter* (Part #4723989)
- Switch Mode power supply, Adapter/battery charger
- Rechargeable Li-ion battery pack
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