The 20 Mobile Batch Plant machine is widely applied in road, bridge, dock, terminals constructions,besides its well known by advanced design and reliable performance. It stirs materials more informally with twin shafts running in opposite direction;the floating shaft seal prevents leakage effectively;besides it has easy operation, small residual capacity, and convenient cleaning. It is featured with compact structure and land saving, with patent technology, shine Concrete Batching Plant has 30%-45% higher efficiency than the average level, it has advantages as bellows:land space saving, automatic operation production line, optional configuration;modular structure, easy transportation and quick install. 20 Mobile Batch Plant,Wet Mix Mobile Concrete Plant,Small Mobile Concrete Plant,Mobile Bathing Plant Shandong Shenghuai Trading Co., Ltd. , https://www.shinebatchplant.com
Smart water meters are also called water meters with electronic devices. The installation of the electronic device can achieve certain predetermined functions such as display, prepayment, control, data storage, and the like. Smart meters include IC card water meters, code-based pre-paid water meters, and electronic remote water meters. In half, the smart meter is composed of a base meter and additional electronic devices. It has certain functions such as display, prepayment, water control, data storage, and other functions. It is used to measure the total volume of water flowing through the pipeline continuously.
The base meter completes the measurement of the amount of water, and the flow measurement sensor is a speed type or a volumetric type. The signal conversion mode is divided into real-time conversion mode and direct-read conversion mode. In the real-time conversion mode, the conversion signal period is continuously generated and the electronic device records the amount of water in real time. In the direct reading conversion mode, the accumulated flow signal is read directly from the pointing device of the base table.
The JJG162-2009 "Cold Water Meter Verification Regulations" promulgated by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China specifies the technical requirements and test methods for cold water meters. However, for smart water meters, verification items such as functional inspections, etc. only specify that the relevant requirements of the relevant product standards and technical requirements should be complied with. The corresponding technical requirements and test methods are not clearly given. With the increasing use of smart water meters, it is necessary to formulate specific metrological specifications. In 2013, the Shanghai Metropolitan Bureau of Quality and Technical Supervision issued the task of formulating the “Local Code for Intelligent Cold Water Metersâ€, which has now been successfully completed.
Prior to this, only the local JJG (Chuan) 108-2012 with electronic device cold water meter verification regulations was in force for the current domestic effective smart cold water meter local verification procedures. The JJG (Beijing) 39-2006 smart cold water meter verification procedures, JJF (Beijing) 33-2003 IC card cold water meter test specifications in the JJG162-2009 cold water meter national verification procedures have been repealed. In fact, the JJG162-2009 cold water meter national verification procedures are ambiguous for smart water meters and functional inspections, and there are no specific methods of operation. Such local verification procedures are based on the JJG162-2009 cold water meter national verification procedures and supplement the technical requirements and test methods of the functional inspection project.
The "Procedure" refers to JJG 162-2009 "Cold Water Meter", JJF 1001-2011 "General Measurement Terms and Definitions", and GB/T 778.1-2007 "The Measurement of Water Flow in Closed Full Pipelines. Drinking Cold Water Meter and Hot Water Meter" Part 1 : Specifications and CJ/T 224-2012 "Electronic Remote Water Meter" and other standards related content together constitute the basic series of specifications developed by the specification.
In addition, in compliance with the requirements of JJF1071-2010 "National Regulations for Measuring Calibration Specifications", the framework includes covers, pages, catalogues, introductions, scopes, citations, overviews, metrology characteristics, calibration conditions, calibration items and calibration methods, and calibrations. Expression of results, time intervals for revalidation, and several sections of the appendix. For more details, please see the attachment.
Shanghai Local Metrology Verification Regulations "Intelligent Cold Water Meter" Approval Draft Completed
[China Instrument Network Standard Sharing Circle] At present, the Shanghai Metrology Verification Regulation “Intelligent Cold Water Meter†has been completed and approved. This version was drafted by the Shanghai Institute of Metrology and Measurement, and the Shanghai Water Meter Mandatory Inspection Station and Shanghai Water Meter Factory. Shanghai Anjuli Intelligent Technology and Shanghai Tianhe Water Meter Factory participated in the drafting. It is suitable for the first verification and follow-up verification of intelligent cold water meter (hereinafter referred to as smart water meter) with temperature class T30 or T50.