ES7821 Tower/ table/Comfort fans and regulators Energy Efficiency Test Lab

Product Specification

ES7821 Tower/ table/Comfort fans and regulators Energy Efficiency Test Lab

Standards application:

ES 7821 "Comfort fans and regulators for household and similar purpose- Methods for Measuring Performance "

This Tower/ table/Comfort fans and regulators Energy Efficiency Test Lab is developed in compliance with IEC 60879:2019, ES 7821:2024, and other applicable standards. It enables precise measurement of key performance indicators, including air velocity, airflow rate, rotational speed, power consumption, and energy efficiency, for various types of fans such as table fans, floor-standing fans, and pedestal fans. The system supports data acquisition and analysis for fan product evaluation, quality inspection, and research and development purposes.

System overview:

This test solution adopts a compact single-chamber configuration and incorporates a dedicated airflow measurement module, ensuring high accuracy and long-term stability in performance evaluation. The chamber structure is built with 100 mm thick rigid polyurethane insulation panels, combined with double-sided 0.6 mm color-coated steel sheets, delivering excellent thermal retention and a stable testing environment.

To guarantee precise environmental control, the system is paired with an independent external air-conditioning unit. By integrating cooling, heating, and humidification functions, the test chamber can maintain highly accurate temperature and humidity conditions, fully satisfying a wide range of testing scenarios.

A separate control and operation room is arranged outside the test chamber to accommodate office workstations, integrated power and control cabinets, as well as variable-frequency power supply equipment. This auxiliary room is generally constructed by the customer next to the chamber using modular panel structures, offering flexibility, easy installation, and efficient space utilization.

The entire testing process is managed through a computer-based control system, enabling operators to perform tests remotely without interfering with the internal airflow field. All test procedures are automated, with real-time data collection, storage, and analysis. Once testing is completed, airflow performance results and energy efficiency evaluations are generated automatically, ensuring high repeatability, improved efficiency, and streamlined data management.

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UUT

* Table fan

* Floor fan

* Pedestal fan

* Power supply: AC 0~250V stepless adjustable,± 1%

Test contents

* Wind speed: pedestal fan, floor fan, table fan

* Air volume: pedestal fan, floor fan, table fan

* Turning speed: pedestal fan, floor fan, table fan

* Input power: pedestal fan, floor fan, table fan

* Energy efficiency value: pedestal fan, floor fan, table fan

Test accuracy

* Air volume: once installed, the deviation between the three test results and the average value is within ± 3%.

Main electrical control parts:

Device Name	Accuracy and Grade	Reference Photo
Power & control cabinet	Brand: Sinuo
Temperature and humidity sensor	Brand: DIHUI Model:DSWP-T5W1 Display decimal point: 0.01 ℃ Instrument accuracy: 0.5 ℃ Humidity:±3%RH
Anemometer	Brand: OMEGA Model: HHF142B Range: 40 FPM to 7800 FPM Instrument accuracy: ± 1 % Accuracy
Air pressure sensor	DWSP-T5W1
Electrical parameter acquisition module	Brand: Yokogawa Model: WT310 Accuracy: 0.1%
Industrial computer	Brand: ADVANTECH Model: IPC-610L+SIMB I5-2400 8G 500 GSSD

 

 

On-site Photo for Reference

 

 

 

Product Key Advantages

 

• Designed and customized in accordance with specific customer needs, this testing system is primarily intended for performance evaluation of table fans, floor fans, and pedestal fans, covering a wide range of application scenarios.

• Compared with conventional test rigs, the system delivers higher measurement precision, reliable and consistent data output, shorter testing cycles, and simplified operation, while also offering lower energy consumption and reduced initial investment.

• The system features a dual-layer automatic control architecture with computer-based operation and independent data protection. This design ensures long-term operational stability and user-friendly control, while effectively preventing data loss or test interruption caused by computer crashes, restarts, or operator errors. During testing, the system supports simultaneous raw data logging, real-time process curve display, automatic calculation, report printing, and result visualization. Final test reports are generated automatically in customer-specified formats.

• An optimized energy-efficient test room design is adopted, combining rapid response and stable control. The fast stabilization mechanism allows the system to reach steady operating conditions within approximately 2.5 hours.

• All key components are sourced from internationally recognized brands, ensuring excellent reliability and a low failure rate. Temperature and humidity measurements are provided by DIHUI sensors, airflow velocity is monitored using Testo or TSI instruments, and motion control is handled by Japanese-brand stepper and servo motors or equivalent high-performance alternatives.

• The test room emphasizes high-efficiency and energy-saving operation, utilizing heat recovery techniques and multi-level control strategies in selected sections to significantly reduce power consumption during long-term operation.

• The overall structure features a clean, modern appearance, constructed with well-known brand insulated panels commonly used in cold storage applications, offering both superior thermal performance and a smooth, flat exterior finish.

• Engineered for durability, the test room supports continuous long-term operation with high reliability, achieving a service life exceeding 10 years under normal usage conditions.

• Test results demonstrate excellent consistency with national reference laboratories, with comparison deviations controlled within 3%, fully satisfying the technical criteria for national laboratory accreditation and production license applications.

 

Anemometer Display