The Keysight U1273AX is a handheld digital multimeter engineered for field measurements across electrical and electronic systems. It delivers 30,000-count resolution with True RMS AC+DC capabilities, an OLED display with 160° viewing angle, and operates reliably from -40°C to 55°C. The meter combines measurement accuracy with intelligent noise-filtering functions and achieves CAT III 1000 V and CAT IV 600 V safety ratings.
Technical Specifications
The 4.5-digit OLED display provides 2000:1 contrast ratio for visibility across lighting conditions. DC voltage measurements span 30 mV to 1000 V at ±(0.05% + 2 counts) accuracy. AC voltage ranges 30 mV to 1000 V at ±(0.7% + 20 counts). DC current measurements extend from 300 µA to 10 A with ±(0.3% + 10 counts) accuracy; AC current ranges 300 µA to 10 A at ±(1.0% + 25 counts). Resistance measurement covers 30 Ω to 300 MΩ. Frequency measurement operates 99.999 Hz to 999.99 kHz with 100 kHz bandwidth. Capacitance ranges 10 nF to 10 mF. Temperature sensing via K-type thermocouple extends from -200°C to +1372°C. The meter includes diode and continuity testing with visual and audible indication.
– Key Features
Low Pass Filter (LPF) attenuates high-frequency noise and harmonics in Variable Frequency Drive measurements. ZLOW mode eliminates stray voltages to prevent false readings and improve safety. Smart Ω minimizes leakage current-induced errors. Qik-V identifies AC and DC voltage presence. Peak Detect captures transients as fast as 250 µs. Internal logging memory stores 10,000 data points.
– Typical Applications
Field troubleshooting of industrial control systems, VFD commissioning and diagnostics, HVAC system verification, and general electrical maintenance in harsh environments.
– Compatibility & Integration
Optional IR-to-USB cable enables PC connectivity. Optional Bluetooth adapter (U1177A) supports remote monitoring and data logging via Android devices or Windows PCs. The meter operates on four 1.5 V AAA batteries. IP54 rating provides dust and water resistance. High-altitude certification extends to 3,000 meters.
