The Fluke 123 Industrial ScopeMeter is a handheld dual-channel instrument that combines a 20 MHz digital oscilloscope, true RMS dual 5,000-count digital multimeter, and paperless recorder into a single rugged device. Designed for field troubleshooting of industrial electrical and electromechanical equipment, it enables simultaneous waveform capture and meter measurements across machinery, instrumentation, power supplies, and control systems.
## Technical Specifications
**Oscilloscope**
• Bandwidth: 20 MHz
• Real-time sampling: 25 MS/s; equivalent sampling up to 1.25 GS/s
• Dual analog inputs with AC/DC coupling
• Vertical sensitivity: 5 mV/div to 500 V/div
• 8-bit vertical resolution
• Record length: 512 samples per channel; 27,500 points per input in ScopeRecord mode
• Trigger modes: Connect-and-View™, Free Run, Single Shot, Edge, Video, External (optional ITP120)
• Glitch capture: 40 ns
• 26 automatic measurements
• Reference waveform storage and comparison
**Digital Multimeter**
• Dual 5,000-count true RMS meters
• DC voltage: 500 mV to 1,250 V; accuracy ±(0.5% + 5 counts)
• AC voltage (RMS): 500 mV to 1,250 V; accuracy ±(2.5% + 15 counts) at 60 Hz to 20 kHz
• Resistance, continuity, diode test
• Current measurement (Amps)
• Capacitance, dBV, dBm, crest factor
• Temperature measurement (°C or °F) with optional probes
• Touch Hold and ZeroSet functions
**Recorder**
• Dual-input TrendPlot for extended data trending
• Event detection for intermittent signal capture
• Recording duration: up to 16 days standard; up to 22 days in TrendPlot mode
**Display & Interface**
• 4-inch (10.2 cm) monochrome LCD, 240 x 240 pixels
• Adjustable contrast and brightness with backlight
• Optically isolated RS-232 PC interface
• USB connectivity via optional OC4USB adapter
• FlukeView® Software compatibility for Windows
**Physical & Environmental**
• Dimensions: 232 x 115 x 50 mm
• Weight: 1.2 kg (2.5 lb)
• IP51 dust and water resistance
• Operating temperature: 0°C to 50°C
• Storage temperature: -20°C to +60°C
• Operating altitude: 3,000 m
## Key Features
• Connect-and-View™ trigger captures signals without manual setup
• Dual independent DMM channels for simultaneous voltage, resistance, and capacitance measurement
• 40 ns glitch capture detects transients in switching circuits
• Up to 22-day recording enables long-term fault trending and intermittent event detection
## Typical Applications
• Variable frequency drive (VFD) diagnostics
• Power supply and control system troubleshooting
• Motor and bearing vibration analysis via waveform capture
• Electrical equipment maintenance and failure analysis
• Field preventive maintenance trending
## Compatibility & Integration
Connects to Windows-based systems via optionally available USB or RS-232 adapters. Stores and transfers waveforms and measurements to FlukeView® Software for documentation and offline analysis.
