Product Introduction   

XL-833 AC Meter Source Integrated Tester Series Products Designed according to JJG1085-2013, JJG (Military) 6-2011, JJG 597-2005 standards, built-in standard source and standard meter for external measurement. It can measure external input while outputting the source, serving as an AC standard power source, AC standard energy meter, DC small signal standard source, and DC small signal standard meter. Accuracy levels are 0.1/0.05. Suitable for scenarios requiring both standard source and standard meter, applicable for AC measurement and calibration. Used by power departments, metrology departments, quality inspection departments, research institutions, universities, and enterprises involved in energy meters, distribution terminals, power management, load control, power quality, reactive compensation, and related R&D.

Main Functions
 

• High Accuracy: Power Output/Measurement Accuracy Level 0.1/0.05 Optional voltage and current output/measurement accuracy levels of 0.1/0.05, harmonic output/measurement accuracy of 0.5%/0.2% RG, frequency resolution of 0.001Hz, suitable for AC detection and calibration.
• Wide Output/Measurement Range: Output/measurement range: 30-420VAC, 50mA-20A AC, -10V~10V DC, 4mA-24mA DC, fundamental frequency 40-65Hz, harmonics 2-49th order. Can serve as AC standard power source, AC standard energy meter, DC small signal standard source, and DC small signal standard meter. Meets requirements for AC voltmeters, ammeters, power meters/energy meters, DC small signals, and transmitter detection and calibration.
• Voltage and Current Synchronous Sampling: Voltage and current use synchronous sampling technology, controlled by a synchronous clock to sample voltage and current values at the same moment. Power and energy are calculated by dot product sum, eliminating measurement errors caused by asynchronous sampling times of voltage and current, improving energy measurement accuracy.
• 24-bit High-speed ADC: Uses industry-leading 24-bit ADC chips and multi-core DSP processors with DDR large-capacity memory, featuring high sampling rate, strong computing power, and high accuracy.
• Automatic Range Switching Across Full Output Range: Automatically switches to appropriate output range within the entire voltage and current output/measurement range to ensure accuracy across the full range.
• Phase-shifted Frequency Conversion: Built-in 32-bit high-resolution DDS, each phase output is independent, allowing separate control of amplitude, frequency, and phase for each phase, flexible and convenient.
• Low Load Regulation: Power amplifier uses hardware closed-loop deep negative feedback technology, from no load to full load Adjustment time in milliseconds Typical load regulation less than 0.01% RD 。
• Low Waveform Distortion: 50,000 points per cycle, compared to peers' 360-3600 points, typical distortion is 0.03%, peers at 0.2%.
• High Annual Stability: Uses world-class components with typical annual stability of 100 PPM/year, can be used for years without calibration.
• Safe, Reliable, and Flexible Use: Voltage and current electrically isolated, three-phase currents electrically isolated from each other, flexible wiring, safe and reliable.
• Professional Software: Software supports voltage and current amplitude adjustment, frequency output adjustment, phase adjustment, three-phase four-wire, three-phase three-wire, harmonic output interfaces, easy operation.
• Human-Machine Interaction, Simple and Flexible: Equipped with a large touchscreen display, multiple operation modes, flexible operation.
• Optional Features: Optional external clamp meter for testing, optional 0-250V high-precision DC signal output as auxiliary power for field testing. 。

Technical Specifications