Keysight (Agilent) U1282A Handheld Digital Multimeter, 4½ Digit

The Keysight U1282A is a 4½ digit handheld digital multimeter designed for industrial field troubleshooting and maintenance. It delivers 60,000 counts resolution with a 40 readings/s maximum reading speed on a LCD display. The instrument measures DC voltage (60 mV to 1000 V, 0.025% + 5 accuracy), AC voltage (60 mV to 1000 V, 0.3% + 25 accuracy, True RMS), DC current (600 µA to 10 A, 0.05% + 5 accuracy), and AC current (600 µA to 10 A, 0.6% + 25 accuracy, True RMS). Resistance measurement extends to 600 MΩ with 1 milliohm resolution on the 60 Ω range. Capacitance measurement capability reaches 100,000 µF (100 mF). Frequency measurement spans 0.4 Hz to 800 kHz at 0.1 Vrms input and 0.4 Hz to 1.8 MHz at 1 Vrms input.

– Technical Specifications

• DC Voltage: 60 mV to 1000 V, 0.025% + 5 accuracy
• AC Voltage (True RMS): 60 mV to 1000 V, 0.3% + 25 accuracy
• DC Current: 600 µA to 10 A, 0.05% + 5 accuracy
• AC Current (True RMS): 600 µA to 10 A, 0.6% + 25 accuracy
• Resistance: Up to 600 MΩ; 1 milliohm resolution (60 Ω range); ~3.2 seconds at 100 Ω
• Capacitance: Up to 100,000 µF
• Frequency: 0.4 Hz to 800 kHz (0.1 Vrms); 0.4 Hz to 1.8 MHz (1 Vrms)
• Temperature: K or J thermocouple, -210 °C to 1372 °C, Celsius or Fahrenheit display
• Display: 4½ digits, 60,000 counts, 40 readings/s

– Key Features

• Low Pass Filter (LPF) for VFD troubleshooting—5% down response at 500 Hz for 1 VAC signals
• Vsense non-contact voltage detection with selectable Hi/Lo sensitivity
• Square wave output generator for PWM signal generation
• Diode and continuity testing with visual and audio alerts
• IP67 water and dust resistance; survives 10 foot drops
• Four 1.5V AA batteries; up to 800 hours operating time
• IR-to-USB cable for PC data logging; wireless options available

– Typical Applications

• Variable frequency drive (VFD) diagnostics and motor troubleshooting
• Electrical system maintenance in industrial environments
• Field measurement in harsh, wet, or dusty conditions
• Equipment commissioning and performance verification

– Compatibility & Integration

IR-to-USB cable connectivity enables PC-based data logging and automated test workflows.