PA333H Digital Power Meter

High-precision, easy-to-integrate, cost-effective electrical parameter measurement instruments

Product Consulting Account Manager

Instrument Solutions: Fu PengTel:13717737785Q Q:583771539

Business Partnership Account Manager

Business Consulting Cooperation: Mr. FengTel:18929381667Q Q:2393692460

Product Description

Supports 1500V/50A direct input without current sensor

The PA333H power meter utilizes dual shunt technology, which allows it to directly measure voltages up to 1500V and currents up to 75A without the use of an external transducer, making it easy to meet the requirements of high power testing up to 50KW.

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Highly accurate measurements despite low power factor

The PA300 series digital power meters use a 100MHz synchronized clock with a phase angle resolution of up to 0.01°. A high measurement accuracy of 0.1% is guaranteed even at power factors as low as 0.0005.

Harmonic measurements in accordance with IEC 61000-4-7 international standards

The PA300 series of digital power meters can perform measurements in full compliance with the international standard for harmonic measurements, IEC 61000-4-7, up to the 50th harmonic, depending on the frequency of the fundamental.

Suitable for power consumption measurement of switching power supplies and inverter appliances

The PA333H series digital power meter has a sampling rate as high as 200KS/s and a bandwidth of 300KHz, which is capable of measuring signals with higher frequencies and meets the power consumption measurement of new technology products such as inverter appliances and switching power supplies.

Intuitive visual data analysis software

PAM management software has powerful data processing and analysis functions, supporting real-time display of all measured parameter values, generating various harmonic data, harmonic histograms, trend charts and waveforms, and supporting synchronized display and report export. It supports IEC62301 international test standard and realizes the automation test of standby power consumption.

Five core technologies to ensure 0.1% power accuracy

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Dual shunt ultra-wide current measurement

The range from 5mA to 20A spanning a large, such as the use of a single shunt, resulting in large temperature drift, low measurement accuracy and other issues. PA300 series digital power meter, the use of dual shunt technology, to maintain the temperature of the shunt resistor steady state change, reduce temperature drift, to achieve from small to large current measurement to ensure that the power of the measurement of the accuracy of 0.1%.

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100MHz high speed synchronized sampling

PA300 series digital power meter adopts 100MHz synchronous sampling clock to ensure the sampling phase synchronization of any one channel ADC with an error within 10ns, which reduces the introduction error of U and I angle during measurement and ensures the measurement accuracy of active power and power factor.

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High resolution 16-bit ADC

The front-end conditioning circuit effectively solves the problems of temperature drift, noise, etc. Meanwhile, the 16-bit AD is used for high speed rate acquisition of voltage and current analog to ensure the accuracy of the original signal.

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Specialized shielding and isolation technology

Voltage and current channels are using special shielding and isolation technology, isolation between the channels have up to 120dB common mode rejection ratio, to ensure that the inter-channel interference is reduced to a minimum, in the test process can be measured at any location, any point, and the measured system has no relationship with the 0 potential, to ensure that each channel is measured independently.

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New FPGA+DSP Design Architecture

After the acquisition of large-capacity data need to do fast operation and processing, other brands of power meters are ARM processor or DSP direct operation and processing, but due to the huge data throughput, a single ARM processor or DSP can not do real-time processing; PA300 series power meter adopts the FPGA + DSP design architecture, FPGA co-processing operations with high-speed DSP to realize real-time measurement and processing. The PA300 series power meter adopts the FPGA+DSP design architecture.

Power Meter Selection Chart

model number	PA333H-2K	PA333H	PA323H	PA323	PV300	PA310H	PA310
concrete figure
input channel	triple channel	triple channel	triple channel	triple channel	triple channel	single channel	single channel
Basic precision	0.1%	0.1%	0.1%	0.1%	0.1%	0.1%	0.1%
Input Bandwidth	DC,0.1Hz ~ 300kHz	DC,0.1Hz ~ 300kHz	DC,0.1Hz ~ 300kHz	DC,0.1Hz ~ 100kHz	DC,0.1Hz ~ 5.5kHz	DC,0.1Hz ~ 300kHz	DC,0.1Hz ~ 300kHz
sampling rate	200KS/s	200KS/s	200KS/s	200KS/s	100KS/s	500KS/s	500KS/s
Number of harmonic analyses	1-50 times	1-50 times	1-50 times	1-50 times	not have	1-50 times	1-50 times
Maximum test voltage	2000V	1500V	1000V	600V	1000V	1000V	600V
Current Test Range	5mA-50A	5mA-50A	500µA-5A	2.5mA-20A	5mA-50A	5mA-50A	25µA-20A
External sensor input	BNC	BNC	BNC	BNC	BNC	BNC	BNC
communications interface	GPIB,LAN,RS-232,USB-Host	GPIB,LAN,RS-232,USB-Host	GPIB,LAN,RS-232,USB-Host	GPIB,LAN,RS-232,USB-Host	GPIB,LAN,RS-232,USB-Host	GPIB,LAN,RS-232,USB-Host	GPIB,LAN,RS-232,USB-Host
test scenario	Photovoltaic inverter Energy Storage Inverter PCS converter Three-phase high-power power supply	High-power motors Three-phase high-power power supply PV Inverter DC Input	PV Inverter AC Output With high precision current sensor	Small power motors Three-phase small power supply	production testing system integration	Single-phase high-power power supply	Single-phase small power supply Power Consumption Tests for the Home Appliance Industry