A knowledge-based company has designed a sequence meter that uses the latest technology to increase electrical safety in houses and industries.
“A sequence meter is used to determine the direction of electric phase as well as motor rotation. Often, sequence meters announce the correct phase sequence with an alarm sound or light,” Reza Hassanlou, a member of Pars Relay Hooshmand Company’s board of directors, was quoted as saying by the news portal of the Vice-Presidency for Science and Technology.
The high quality sequence meter can check the phase sequence in some voltage and multi-meters, has wide applications in various industries and are easy to use, he added.
Another type of domestic sequence meter allows safety testing without direct contact between a probe and wire, and indicates phase rotation with rotating LEDs and an audible buzzer.
To avoid their failure, it is necessary to connect three-phase devices such as pumps and compressors in the correct order. These devices generally draw less current when connected incorrectly and can easily be tested with a clamp on the amplifier for the amount of current drawn.
The director of the knowledge-based company noted that when the sequence meter is incorrectly connected to three-phase power to consume low electric current, it helps identify the place of each of the two wires that can be installed correctly.
Hassanlou explained that due to the competitive quality and price of the domestic sequence meter compared with foreign counterparts, the former could help prevent the outflow of foreign exchange.
“The production of sequence meters has also created dozens of jobs,” he said.
Ultrasonic Water Meter Cost-Effective
A knowledge-based company has designed a smart water meter with very high accuracy and additional features to replace mechanical meters.
“The ultrasonic smart water meter has higher accuracy than traditional mechanical meters,” Abolfazl Janfada, CEO of knowledge-based Be Saaz-e-Energy Company, said.
In a housing unit under construction, a water meter is installed on the inlet pipe and another on the outlet pipe so that the difference between incoming and outgoing water helps calculate the amount of hot water consumed.
The meter helps measure the consumption of water and thermal energy in different parts of the building to calculate the water and gas bills of each housing unit, as well as those of industrial units.
It measures fluid velocity, instantaneous and volumetric flow, direction of water movement, meter operation time and water temperature.
The lifespan of this meter is 2-3 times that of mechanical meters and due to its very small measurement error, it helps customers pay the real water bill.
With this product, the water flow can be turned off for a consumer who exceeds the consumption pattern, or refuses to pay the water bill. It has been marketed at a lower price, which can compete with similar European models.
The software and hardware of this product have been designed by the company’s specialized workforce.
Superior Water, Wastewater Ozone Analyzers
A domestic knowledge-based company has developed ozone analyzers that can evaluate and measure the quality parameters of drinking water and treated wastewater.
“These analyzers are designed to conform with domestic conditions and electricity fluctuations. Water and sewage companies are their main buyers,” Shahab Zarrin Ghobai, CEO of Abzar Daqiq Aab Azma Company, said.
The company’s ozone analyzers assess chlorine, oxygen, nitrate, turbidity, color and hardness in drinking water and treated wastewater.
If the amount of chlorine is higher than the standard amount, it carries carcinogenic risks, and if it is lower, the water will not be adequately sterilized. Therefore, the analyzer helps ensure that the water’s constituent elements are within an acceptable limit.
In the past, these products were imported from Germany and the United States, but for the past three years, most Iranian cities have been using domestic products.
These analyzers are installed at the outlets of water treatment plants to control the amount of chlorine, at the network junction to prevent the entry of contaminants and in water and sewage tanks.
The price of foreign analyzers is fourfold higher than that of their domestic counterparts. As sanctions prevented imports, those imported in the past also remained unused due to a lack of spare parts.
As advanced technology is involved in these products, only a few companies can produce them. At present, the domestic product has been exported to Turkmenistan and Iraq.
Data transfer to the control center is not secure in foreign counterparts, while the domestic products’ servers are localized and updated from time to time so they don’t face such a problem.
