AC Consumption Meter

Product Details

Application

Model DEM011TG single phase electronic DIN rail active energy meter is a kind of new style single phase two wire active energy meter. It has adopted micro-electronics technique, imported large scale integrate circuit, and used advanced technique of digital, SMT techniques, and etc. The meter completely accords with relevant technical requirements of class 1 single phase active energy meter stipulated in international standard IEC 62053-21. It can accurately and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net. It can display total energy consumption by step motor type impulse register. It has following features: good reliability, small volume, light weight, specious nice appearance, convenient installation, and etc. This meter has already gotten the patent certificate from China State Intellectual Property Office at present. Patent certificate NO. ZL 2006 3 0106828.1. All the other country patent certificates are in processing.

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Each country or region has its own approvals agency. For example, the United States has the U.S. Food and Drug Administration (FDA), Europe has the European Medicines Agency (EMA), Australia has its Therapeutic Goods Administration, and China has its China Food and Drug Administration (CFDA). Each of these agencies has its own process in place, but, in general, when considering the approval of new drugs, their decisions are based on scientific and technological information. This information is obtained through a series of preclinical studies (in cells and animal models), followed by three phases of clinical trials in humans, each phase having distinct aims and increasingly large populations of test subjects. Once these trials are completed, the drug sponsor or developer submits a drug application for review and approval by its country’s regulatory agency.

The new drug application includes all data collected from animal and human trials, data analyses, details on drug manufacture, and details on the drug’s effects on the human body. In the United States the new drug application is reviewed by a team of scientists, which includes chemists, physicians, and pharmacologists, who are part of the FDA’s consumer watchdog Center for Drug Evaluation and Research (CDER). A major part of the CDER team’s review is focused on the evaluation of safety and effectiveness. Approved agents are advanced to drug labeling and marketing.

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Why do these designations matter? Consider the ongoing COVID-19 pandemic and the unprecedented effort to develop a novel vaccine against the causative agent, SARS-CoV-2, in record time. Numerous vaccines are under development, by many different companies and medical research entities. By the end of August 2020, some 36 vaccines had entered clinical trials in humans, many having raced through preclinical trials at breakneck speed. In the United States, some of these vaccines were likely to receive emergency use authorization, meaning that they would be made available to the general population before being formally approved.

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