Fluke 120B Series Industrial ScopeMeter® Handheld Oscilloscope

Fluke 120B Series Industrial ScopeMeter® Handheld Oscilloscope

Fluke 120B Series Industrial ScopeMeter® Handheld Oscilloscope

Description Fluke 120B Series Industrial ScopeMeter® Handheld Oscilloscope

The Fluke 120B Series Industrial ScopeMeter® is a rugged, portable oscilloscope designed for industrial troubleshooting. It combines a dual-channel oscilloscope, multimeter, and recorder in one compact device, making it ideal for field technicians. The series includes three models:

• 123B (20 MHz bandwidth)

• 124B (40 MHz bandwidth)

• 125B (40 MHz bandwidth + power quality & bus communication analysis)

Key Features Fluke 120B Series Industrial ScopeMeter® Handheld Oscilloscope

• High-performance oscilloscope with real-time and equivalent-time sampling.

• Dual-channel multimeter for accurate voltage, current, frequency, and temperature measurements.

• Advanced triggering (Connect-and-View™ for automatic signal detection).

• Data recording (internal memory & optional SD card support).

• Power quality analysis (125B only).

• Industrial bus health testing (125B only).

• Rugged design (IP51 rated, CAT IV 600V safety).

• Color TFT display (5.7-inch, 640×480 resolution).

• Wireless connectivity (WiFi adapter optional).

Specifications Summary

Oscilloscope Mode

• Bandwidth:

  • 123B: 20 MHz

  • 124B/125B: 40 MHz

• Rise Time:

  • 123B: <17.5 ns

  • 124B/125B: <8.75 ns

• Input Impedance: 1 MΩ // 20 pF (direct input).

• Voltage Range: 5 mV/div to 200 V/div.

• Max Input Voltage: 600 Vrms CAT IV (750 Vrms peak).

• Sampling Rate: Up to 4 GS/s (equivalent-time), 40 MS/s (real-time).

• Triggering: Auto, manual, edge, and pulse width.

Meter Mode (Dual Input)

• Voltage (DC/AC/AC+DC): 500 mV to 750 V.

• Frequency: Up to 70 MHz (124B/125B).

• Resistance: Up to 30 MΩ.

• Capacitance: 50 nF to 500 µF.

• Temperature: -200°C to 1370°C (with optional probe).

• Current (with clamp): 0.1 mV/A to 10 V/A scaling.

Power Quality Analysis (125B Only)

• Measures Watt, VA, VAR, PF, DPF, and harmonics (up to 51st).

• Accuracy: ±2% (Watt/VA/VAR).

Industrial Bus Testing (125B Only)

• Supports CAN, Modbus, Profibus, Foundation Fieldbus, RS-485, and more.

Data Recording

• Waveform Recording: Up to 400,000 samples (internal), 1.5 billion with SD card.

• Meter Recording: Up to 2 million readings.

Connectivity & Power

• USB (optically isolated) for PC data transfer.

• WiFi Adapter (optional) for wireless data sharing.

• Battery: Li-Ion (7 hours runtime).

• Power Adapter: 10–21 V DC input.

Environmental & Safety

• Operating Temp: 0°C to 50°C (32°F to 122°F).

• Safety Rating: CAT IV 600V, IP51 protection.

• EMC Compliance: IEC 61326-1, CISPR 11.

Summary

The Fluke 120B Series ScopeMeter® is a versatile, rugged handheld oscilloscope designed for industrial diagnostics. With high bandwidth, dual-channel metering, power quality analysis (125B), and bus communication testing, it is ideal for field technicians, engineers, and maintenance professionals. Its portable design, long battery life, and wireless connectivity make it a powerful tool for troubleshooting in harsh environments.

Models:

• 123B: Basic oscilloscope + multimeter (20 MHz).

• 124B: Enhanced oscilloscope + recorder (40 MHz).

• 125B: Advanced oscilloscope + power quality & bus testing (40 MHz).

Best For:

• Industrial maintenance

• Power quality analysis

• Motor drive troubleshooting

• Bus communication testing

• Field service & repairs

Fluke 120B Series – Precision and Durability for Industrial Applications.