The Keysight U1233A is a handheld True RMS digital multimeter engineered for precision electrical and electronic measurements in industrial and laboratory environments. Built for field service, on-site diagnostics, and maintenance verification, this 4-digit LCD DMM delivers accurate measurements across voltage, current, resistance, capacitance, and frequency with 10 MΩ input impedance and 600V overload protection.
– Technical Specifications
Voltage Measurement
• DC: 600 mV to 600 V ranges; accuracy ±(0.09% + 2) at 600 mV, ±(0.06% + 2) at 6V/60V/600 V; resolution 0.1 mV to 0.1 V
• AC (True RMS): 6 V to 600 V ranges; accuracy ±(1.0% + 5); resolution 0.001 V to 0.1 V
Current Measurement
• DC: 60 mA to 10 A ranges; accuracy ±(0.2% + 2) for 60/600 mA, ±(1.0% + 5) for 10 A; resolution 0.01 mA to 0.1 A
• AC (True RMS): 60 mA to 10 A ranges; accuracy ±(1.2% + 5) for 60/600 mA, ±(1.5% + 5) for 10 A; resolution 0.01 mA to 0.1 A
Resistance: 600 Ω to 6 MΩ; accuracy ±(0.4% + 2) at 600 Ω, ±(0.3% + 2) at 6/60/600 kΩ, ±(0.5% + 2) at 6 MΩ
Capacitance: 10 nF to 100 µF; accuracy ±(1.0% + 2); resolution 0.01 nF to 0.1 µF
Frequency: Up to 100 kHz; accuracy ±(0.1% + 1); resolution 0.01 Hz
Diode & Continuity: 1 mA ± 10% test current; open circuit voltage ≤ 3.2 V; audible continuity threshold <30 Ω
Display & Interface
• 4-digit LCD with backlight; ~3 readings/second
• 9V battery (NEDA 1604/IEC 6LR61); hundreds of hours typical life
Environmental
• Operating: -10°C to +55°C; ≤80% RH non-condensing; up to 3,000 m altitude
• Storage: -40°C to +70°C
– Key Features
• True RMS AC measurements for non-sinusoidal waveforms
• 10 MΩ input impedance on voltage channels
• 600 V overload protection
• Fast continuity detection with audible feedback
• Backlit display for low-light field work
– Typical Applications
Electrical troubleshooting, circuit verification, equipment maintenance, component testing, and field diagnostics across HVAC, electrical distribution, industrial control, and general electronics.
– Compatibility & Integration
Standard handheld form factor compatible with typical test lead accessories and wall-mount storage in service kits.
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