Keysight U1253B Handheld Digital Multimeter, True RMS

The Keysight U1253B is a handheld digital multimeter engineered for precise AC and DC measurements across industrial and laboratory environments. True RMS circuitry delivers accurate readings of non-sinusoidal waveforms, critical for characterizing complex electrical systems. The instrument integrates voltage, current, resistance, capacitance, and frequency measurement functions in a single platform, with data logging capability for systematic troubleshooting and performance verification.

– Technical Specifications

Voltage Measurement
• DC: 600.0 mV to 1000.0 V; accuracy ±(0.025% + 2 counts) at 600 mV, ±(0.05% + 2 counts) other ranges; input impedance >10 MΩ
• AC (True RMS): 600.0 mV to 1000.0 V; frequency response 20 Hz to 50 kHz; accuracy ±(1.0% + 15 counts) at 600 mV (50 Hz–20 kHz), ±(0.5% + 10 counts) other ranges (50 Hz–20 kHz)

Current Measurement
• DC: 600.0 µA to 10.00 A; accuracy ±(0.15% + 5 counts) at 600 µA, ±(0.1% + 5 counts) at 60 mA, ±(0.2% + 5 counts) at 10 A
• AC (True RMS): 600.0 µA to 10.00 A; frequency response 50 Hz to 20 kHz; accuracy ±(1.5% + 15 counts) at 600 µA, ±(1.0% + 10 counts) at 60 mA and 10 A

Additional Functions
• Resistance: 600.0 Ω to 60.00 MΩ; accuracy ±(0.5% + 5 counts); test current 1 mA (600 Ω–6 MΩ), 0.1 mA (60 MΩ)
• Capacitance: 10.00 nF to 100.0 mF; accuracy ±(2.0% + 10 counts) for 10 nF–10 µF, ±(5.0% + 10 counts) for 100 µF; test frequency ~5 Hz
• Frequency: 10.00 Hz to 100.0 kHz; accuracy ±(0.1% + 5 counts); input sensitivity 1 Vrms
• Diode test: 3.0 V nominal test voltage, 1 mA test current
• Continuity: Audible alarm threshold <30 Ω

– Key Features

• 50,000-count dual display with 30 readings/second sampling rate
• True RMS for non-sinusoidal waveform analysis
• Data logging with internal memory
• 9 V alkaline or NiMH rechargeable battery; ~15 hours runtime (alkaline)

– Typical Applications

Electrical system troubleshooting, preventive maintenance, component characterization, field calibration verification, and performance diagnostics in industrial and service environments.

– Compatibility & Integration

Standard test lead connectors enable integration with common laboratory and field setups.