FUNCTION DESCRIPTION
Countdown
socket has an AC outlet, the maximum can output 230 V16A of power,
there are two control modes, that is, countdown off and countdown on. It
is convenient to control the equipment which needs to switch off or
turn on AC. improve the safety of the use of some equipment and save
more energy.
SET TIMER
1,Countdown
plug in the socket, all indicator lights red flash three times, at this
time the socket has no output, for the normal state, into the countdown
state. Click the button, the first red light up, the socket output
after an hour off, and then short press the button can set the socket
timing of 2 H.4H.6H.8H.10H.OFF.
2,Long
press button 3s, all indicator lights green flash three times, at this
time the socket has output, for the regular open state, into the
countdown on state. Click on the button, the first green light on, the
socket is closed an hour later, and then press the button to set the
socket countdown 2 H.4H.6H.8H.10H.OFF.
3,Press button 3 longer S, all indicator lights red light flash 3 times again into countdown mode.
4,Select
the required countdown time mode, the corresponding mode countdown
lights up, start countdown until the end of the countdown time. The
outlet that controls the output will start or stop the output.
5,After the countdown starts, the time indicator will change automatically from high to low until the countdown is over.
NOTE:
1,Check that the power connection is good.
2,Use only indoors and in dry places.
3,This product does not convert AC voltage.
4,Maximum load not exceeding 16A 3680W.
5,Grounding is required for safety.
Countdown Timer Socket Switch, Countdown Timer Plug,Countdown Timer Plug Socket, Energy Saving Countdown Timer Switch Socket, Countdown Timer Switch NINGBO COWELL ELECTRONICS & TECHNOLOGY CO., LTD , https://www.cowellsockets.com
Foreign studies on the use of computers for architectural acoustics have been carried out for many years, and many applications have been introduced for computer-aided architectural acoustic design, such as ODEON in Denmark, RAMSETE in Italy, RAYNOISE in Belgium, and Germany. EASE and so on. These computer software have already entered the market, and some architectural acoustic engineering consultants use the software to perform architectural acoustics consulting, use software simulation to predict the acoustic quality of buildings, and make feasibility predictions for architectural acoustic retrofits. 
Computer building acoustic simulation is:
Important tools and powerful tools for stadium acoustic design, hall sound quality design, and regional environmental noise prediction, which can effectively help:
1. The acoustic designer completes the acoustic design and accurately controls the acoustic index in a short period of time;
2. The architect understands the acoustic design and does the project adjustments in a targeted manner;
3. The important basis for the design of the sound reinforcement system;
4. The owner intuitively understands the acoustic design idea, evaluates the acoustic environment, and facilitates communication with the acoustic designer;
5. Computer simulation of architectural acoustic design; 
The computer simulation course is rich and vivid, easy to learn and master. The combination of theory and practice in the course, the application of computer simulation in the hall sound quality, the application in sports architecture design, the application in architectural planning and traffic noise, Application in the field of industrial noise reduction, telling the error analysis between computer simulation and actual measurement. Understand the development and application trends of domestic architectural acoustic computer software. Chinaaudio has made a brief introduction to the mainstream software with a large number of users.
1, BK Dirac hall measurement software
2, CARA room acoustic design software
3. CATT Building Acoustics Software
4, German acoustic simulation software EASE
5, INSUL building structure sound insulation performance prediction software
6, ZORBA building materials sound absorption performance prediction software
7, Acoubatsound room sound calculation software
8, SoundPlan noise prediction and evaluation software
9. Combination of modeling software SketchUp and acoustic simulation software
10, Grasshopper and Rhino (home theater)
1, CARA room building acoustics software
CARA is a finite element analysis software designed for home audio-visual rooms that is easy to learn and powerful. CARA software can design reverberation time for professional architectural acoustics in the studio, piano room, audio-visual room, etc. With a simple and easy-to-use interface, computer-based processing capabilities, you can design a new studio in a very intuitive way. Or a music studio.
Software modeling, modification of room plane structure, object setting in the room, material surface setting, material selection, acoustic environment calculation, listening position setting, calculation result analysis, etc. Welcome to the home theater network shopping guide network!
2. CATT Building Acoustics Software Hall Sound Quality Simulation Software CATT can mainly analyze the acoustic parameters of buildings for various types of rooms. Designers can use the sketchup, autocad software modeling and import software to set various materials for each room interface. Sound absorption parameters, through the software's virtual sound source and sound line tracking and other advanced calculation methods to calculate various acoustic behavior in the room. Through the simulation calculation, the acoustic parameters of the acoustics, such as the sound pressure level distribution of the room, the reverberation time, the D50 speech intelligibility, the C80 music clarity, the pulse response, etc., are provided to provide a series of architectural acoustic parameters. Good acoustic reference, timely help the designer to find the sound quality defects in the room and make corresponding adjustments. It is a small professional sound building software and an efficient design software in the design team.
Applications include small theaters, studios, audio-visual rooms, piano rooms, and architectural acoustic analysis and design.
3, BK Dirac hall measurement software
Developed by Danish B&K, Dirac test software is mainly used for building acoustic parameter measurement, and its measurement accuracy and accuracy are recognized by the industry. Measurements include reverberation time, impulse response, sharpness, clarity, lateral acoustic energy, and binaural correlations. The acoustic parameters commonly used at this stage can be measured by the software. Measurement and data processing of all parameters are carried out in accordance with ISO 3382 and IEC 60268-16. In the measurement process of the software, pulse sound, MLS sound source and arpeggio can be used as test sound sources, with wide application range and accurate and reliable data.
4, German acoustic simulation software EASE 
ADA's EASE acoustic simulation software has been widely used in more than 40 countries around the world. Its speaker database contains speaker data from more than 70 world-renowned speaker manufacturers. Therefore, EASE acoustic simulation software has become a unified acoustic simulation design computing platform. The EASE software allows you to compare the results of different brands of speaker calculations.
According to the acoustic characteristics of the hall sound reinforcement system, the acoustic computer aided design software EASE (Electro Acoustic Simulator for Engineers) version 4.3 is used for design and calculation. The calculation results are given in the form of sound field distribution color display. The main content calculated by EASE software includes:
1. Reverberation time frequency characteristic curve;
2, direct sound pressure level (Direct SPL);
3. Total sound pressure level (Total SPL);
4, Critical Distance (Critical Distance);
5, direct sound / reverberation sound ratio (D / R Ratio);
6. Consonant loss rate (ALcons%);
7. Fast delivery index (RASTI, STIPA);
8, C series of parameters (C Measurements);
5, INSUL & ZORBA building structure sound insulation performance prediction software building materials acoustic calculation software, is the world's first acoustic material calculation software, there are two modules interface of sound insulation calculation and sound absorption calculation, through which can calculate the current domestic 99% Architectural acoustic products, designers can effectively predict the structural changes of materials, and feedback the results of the calculations into the design, effectively supporting the design. The software is known in the industry as the Mobile (Notebook) Acoustic Materials Laboratory.
INSUL Building Materials Sound Absorption Performance Prediction Software Estimates the Sound Insulation of Walls and Floors. Evaluate the Influence of Wall and Floor Structure Changes on Sound Insulation
ZORBA Building Materials Sound Absorption Performance Prediction Software Budget Acoustic Surface Sound Absorption Performance Evaluation of Structural Changes on Sound Absorption Performance
Acoubat sound building sound insulation and audiovisual simulation software, SoundPlan noise prediction evaluation software
6. ACOUBAT is an indoor acoustic environment design and control software developed by CSTB in France. It has the advantages of simple modeling, open material library, standard optional / conversion, and so on. Various room interval sound modes (wall vertical, oblique sound insulation calculation, building exterior wall, curtain wall, door and window sound insulation calculation, floor impact sound insulation calculation, etc.) can be performed and virtual audio-visual technology is available. Through the use and mastery of the sound insulation software, you can quickly analyze the design measures of various walls and floors in the target room, and analyze the design effect of the virtual hearing program through software. It is a set of architectural acoustics in the industry. software!
Since its inception in 1986, SoundPlan software has quickly become the standard for outdoor acoustic software in Germany and has gradually become the world's leading software for noise prediction, mapping and evaluation. The European market share is 70%.
SoundPlan can simulate a 3D aerial view of a large area, as well as predict noise maps and noise profiles. Its use ranges from small factories to noise planning throughout the city, with no restrictions on the size of the entities and projects. SoundPlan is a comprehensive software with high flexibility. The software has been at the cutting edge in the field of noise planning, and the software is easy to operate and accurate. The beginner can easily give accurate noise prediction results.
This is a powerful noise prediction evaluation software that mainly performs external noise calculation, ambient noise propagation, and distribution calculation, including:
Traffic noise, industrial noise current situation simulation and prediction, sound barrier design optimization, building facade noise simulation prediction, sound insulation window layout optimization, etc.
The combination of parametric design of acoustic space and modeling technique modeling software SketchUp and acoustic simulation software
7. SketchUp, also known as "Sketch Master," is a piece of software that you can use to create, share, and present 3D models. Modeling is different from 3dsmax, which is planar modeling. It guides the system through a simple and detailed color, line and text prompt, allowing people to track positions and complete related modeling operations without having to type coordinates. It is a set of design tools directly oriented to the design process of the design. The creative process not only fully expresses the designer's ideas but also fully meets the needs of instant communication with customers. It enables designers to directly and intuitively design on the computer. It is an excellent tool for the creation of 3D architectural design solutions.
SketchUp's modeling process is a project case that demonstrates the comprehensive process of modeling, such as how to build a model based on the shape of the building, the details of the model building, the common buttons in the SketchUp model building process, and the construction of special models.
SketchUp's model export and interface processing is a project case, how to export the model to AUTOCAD, how to perform acoustic material interface processing in AUTOCAD, and how to prepare 3DFACE interface for acoustic software.