Power Measurements, Digital/Analog Input and Output Integration

Accura 3500S is a high accuracy digital power meter, suited to power measurements and digital/analog input and output. This enables customers to easily meet a variety of digital/analog requirements in the field, remarkably cutting down expenses of customers to additionally purchase separate RTU products in existing management system. The device is applied to applications, such as electrical facilities, intelligent building system, factory and etc.

Accuracy, Power Quality

The measuring accuracy is the most important criterion to evaluate the reliability of energy management system. Actually low accuracy makes it hard for customers to precisely manage energy, causing inequality of energy between incoming feeder and sum of load sides. Accura 3500S makes ±0.2% high accuracy measurements for voltage and current, and conforms to IEC62053-22 class 0.5S for power and energy. This makes it possible to solve the problem with energy inequality. Furthermore the device provides the information of power qualities, such as voltage/current THD, harmonic analysis, and k factor.

CE/UL Safety and Reliability

The structure- framework, circuit, fire - of Accura 3500S conforms to safety standard, CE[IEC61010], UL[UL61010-2, 2^nd edition]. Particularly the device provides pass-through busbar, allowing CT leads to be terminated on the device. This eliminates any possible point of failure at the device. And optic interface between meter and module essentially disturbs danger of the existing electrical contacts.

Easy Adding of Modules

Easy adding of modules to rear side of meter provides customized extension of function to flexibly  meet a variety of applications. Accura 3500S has a basic module, called DIO module, and an extension module, one of digital input, digital output, analog input, and analog output modules. the extension module is selected as an option when ordering.

Communication[IrDA and RS485]

Accura 3500S provides two independent communication ports. One port provides RS485 communication which supports a variety of applications, such as energy management, IBS, and SCADA. The Accura also has an optical IrDA port, allowing the device to be set up and programmed using a UMPC. Just point at the meter with IrDA-equipped UMPC, so customers can monitor measurements, harmonic graph, vector diagram, demand trend, and oscilloscope.

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True RMS Measurement robust to harmonics

Most of energy environments consist of nonlinear loads, such as industrial load, rectifier, power electronic device, electric furnace and etc. this causes fatal distortion of voltage and current waveforms. Accura 3500S makes high accuracy True RMS measurements for voltage and current distorted with harmonics.

Power Quality Analysis

Accura 3500S provides k factor, analysis of voltage and current up to 31^st harmonic, and realtime waveform of voltage and current.

Module structure to adapt to requirements in the field

Easy adding of modules to rear side of meter provides customized extension capability to flexibly  meet a variety of applications. In the case of the existing IBS, DDC panel concentrates all of input/output wiring, decreasing economical efficiency and reliability of the overall system. Accura 3500 easily replaces the existing DDC panel, building the optimal IBS system.

Compatibility with Analog meters

Accura 3500S mounts directly in ANSI C39.1[4¡± Round] or DIN 96. this is perfect for new installations and for existing panels. In new installations, simply use existing DIN or ANSI punches. For existing panels, pull out old analog meters and fit the device in its cutout.

High Reliability Energy Management

The most important point to evaluate the overall data reliability of energy management is the accuracy of meters. Accura 3500S makes ±0.2% high accuracy measurements for voltage and current, and conforms to IEC62053-22 class 0.5S for power and energy. Energy management gives customers various services, monitoring, cost curtailment, demand, energy planning, and etc.