Alarm access control

Access control technician required. Must be Psira registered and have technical background on CCTV, Access control systems.

Service and maintain alarm systems for domestic, commercial and industrial sectors. Minimum Qualifications And Experience Required • Matric or Equivalent • Valid driver’s license essential • Knowledge of CCTV, Intercom systems and access control Main Duties And Responsibilities • Conduct service calls / maintenance and repairs • Complete links up for new clients • Complete small installations as and when required • Ensure that job reports and technical invoices are completed accurately and timeously • Ensure that quotes are completed accurately

Network, Cyber security, Access control, surveillance and Helpdesk Support. Network design, installation and maintenance. Firewall, Antimalware installation and maintenance. Biometric access control with surveillance system. End user helpdesk support.

ALARM CONTROL ROOM OPERATOR MUST BE PSIRA REGISTERED GRADE E EXPERIENCE WILL BE WORKING SHIFTS EMAIL CV WITH ALL RELEVENT CERTIFICATES chantelle@sabsecurity.co.za

We require an experienced Alarm Control Room Operator at out Gonubie offices. Shift work involved. Candidates with experience and PSIRA registration are invited to forward their CV to dennis@komgaalarms.co.za or fax to 0866693612.

A position is available at an FMCG company in Port Elizabeth for a Loss Control Officer to ensure the application and compliance with Loss control policies to prevent damages and losses. PURPOSE OF THE POSITION: To ensure application of, and compliance with Loss Control policies to prevent damages and losses RESPONSIBILITIES: Perform Safety and Loss Control functions • Assist with crate management activities • Contribute to curbing product losses • Investigate incidents and compile reports • Conduct ad-hoc investigations (e.g. product damages) • Monitor security systems (e.g. alarm systems, access control, camera systems) • Coordinate safety aspects in line with OHS Act • Assist with the management of certain site services (e.g. Security services) REQUIREMENTS: • Grade 12 or equivalent qualification • Relevant experience in applying job related concepts, techniques and processes at the required level • Business English: Fluent • Computer literacy (Intermediate) • Code 08 Driver's license • Travel off-site/overnight stay • Work shifts/weekends/public holidays

IDS 805 Alarm Panel plus 8 zone Led keypad. Includes transformer, back up battery, siren, 2 infra red motion sensors, 2 door contacts and two panic buttons. An IP Connect Module is also supplied giving Client remote access to his alarm from anywhere that his cellphone can send and receive an sms.(The IP Connect module must have wifi access at all times to send/receive activations or commands.) All alarm activations will be received by client and he can disarm/arm, bypass, press panic etc all from his phone. Offer available to orders confirmed up to the 15th December, 2020 in the Cape Peninsular. More sensors may be added to above installation at minimal extra cost. Full ONE Year guarantee on all equipment supplied.

Overview The automatic control for the molten steel level of the mold is one of the key technologies of continuous casting production. It is very important to reduce the labor intensity of workers, improve production efficiency, improve the quality and output of casting billet, reduce overflow and breakout of steel and improve the management level of steelmaking and continuous casting. The molten steel is poured into the mold. In order to prevent overflow, the molten steel level must be kept stable. Otherwise, during the casting process, if the level will fluctuate too much, and slag will be involved, forming surface slag inclusion on the surface of the casting billet, affecting the quality of the billet. The test points out that the relationship between the level fluctuation and the depth of casting billet surface slag inclusion is as follows: The experience has shown that surface slag inclusions can be eliminated when the level fluctuation is within ±10mm. At the same time, if the level fluctuation is more than 10mm, the rate of longitudinal cracks on the casting billet surface is 30%. It means that the level fluctuation directly affects the surface quality of the casting billet. The principle of the system The eddy current type molten steel level gauge is the key to the system. The system operates reliably and has excellent performance: high temperature resistance, strong anti-interference ability, fast dynamic response (lag time 0.10s), high detection accuracy (±05mm), and large measurement range (0-150mm). The selected electromagnetic field frequency ensures that the level detection probe only detects the level change of the mold and does not detect the mold flux or steel slag layer. The system has the advantages of simple operation and no radiation protection problems. The system is insensitive to argon blowing, and its sensors can be mounted on the tundish car or on the platform. The sensor is cooled by compressed air during use. The principle is shown in the figure A high-frequency exciting winding is installed above the molten steel surface of the mold. The high-frequency magnetic field generated by the high-frequency exciting winding induces eddy currents on the molten steel surface to form a magnetic field. The magnetic field generated by the induced eddy current is in the opposite direction to the magnetic field generated by the high-frequency exciting winding, which changes the impedance of the high-frequency exciting winding. Under the condition that the winding material and structure, steel grade, temperature remain unchanged, the coil impedance change only has a single-value function relationship with the height of the molten steel level. As long as the impedance change of the high-frequency winding is detected, the change of the molten steel level in the mold can be converted. The components of the system Continuous casting mold level automatic control system is composed of eddy current tyoe molten steel level gauge, controller and digital actuator for adjusting the opening of tundish stopper. The detection end of the mold level automatic control system is ① eddy current displacement sensor, which uses the eddy current mutual inductance effect between the energized coil and the metal conductor to detect the distance. The effective signal of the eddy current sensor is amplified and linearized by the circuit of ② mold level gauge, which converts the 0-150mm change in the molten steel level of the mold into a standard signal of 4-20mA.DC, and then transmits it to the ③ control computer to complete data processing and system control functions. We can also control the actuator manually and automatically through the ④on-site operation display control panel, and the opening of the stopper is controlled by the ⑤ actuator to realize the automatic control of the molten steel level. 1 Eddy current sensor; 2 mold level gauge; 3 control computer; 4 On-site operation display control panel; 5 digital actuator; The control principle of the system The system can be set to four control modes: automatic, semi-automatic, manual and motor clutch. The automatic mode is the closed-loop control system of the molten steel level, and control the opening of the stopper by the digital actuator; the semi-automatic mode uses opening degree setter and digital actuator to set the opening of the stopper manually; the manual mode is to open and close the button directly to control the opening of the stopper; the motor clutch mode is quickly changed from any of the above control methods to manual stopper operation. The functions of the system also include: display and record of molten steel level, nozzle opening and casting speed; setting of molten steel level and nozzle opening; alarm of molten steel level at limit value etc. In addition to taking the detection of molten steel level as the main feedback signal of the control system, the control system also considers various interference factors that have an impact on the level control. These interference factors include: 1. The influence of the change of the flow characteristics on the control system after the melt loss of the stopper 2. The influence of the weight change of molten steel in the tundish on the control system 3. The influence of the change of the casting speed of the continuous casting machine on the control system 4. The influence of the mold width change (the mold width is adjustable) on the control system 5. The influence of the vibration frequency and amplitude of the mold on the molten steel level gauge The function and software implementation In order to overcome these disturbances, the mold level control strategy adopts PID control. And on the basis of PID control, self-adaptive correction and feedforward control are introduced to form an advanced control system. The level control is the main loop, and there is a proportional gain of the main loop controller. According to the self-adaptive correction of the mold width change and feedforward compensation of casting speed, so as to further reduce and eliminate liquid level fluctuations caused by mold width adjustment and casting speed changes. In order to reduce the frequent action of the stopper, the system adopts the intergarting time change of the controller, and automatically selects a longer intergarting time when the molten steel level fluctuates lightly. And the system will choose a shorter intergrating time when molten steel level fluctuates greatly. Thereby, the fluctuation of the controlled object caused by the frequent action of the stopper rod is suppressed. In the signal processing of molten steel level gauge, an appropriate filtering link is added and the vibration frequency synchronous filter is used for filtering processing, which can overcome the interference of mold vibration frequency and amplitude variation.

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Our Security Services Company based in Mthatha, the Eastern Cape is looking for a Security Technician to join our team. The Technician will ensure all work as assigned is done to standard and client’s satisfaction. Duties; Installation, maintenance and operation of Alarms, CCTV and Access Control systems. Ensure that work assigned are done timeously, correctly, and billed correctly. Keep track of new products and developments. Performing General Physical Activities – Such as climbing, lifting, balancing, walking, stooping, and handling of materials and equipment. Compilation of Tenders. Training clients on how to handle, operate and care for installed equipment. Ordering and maintenance of stock. Skills: Basic understanding of computers required. Literacy and Numeracy - must have passed English and Maths at Grade 12 level. Valid Drivers License Min 3 years alarm experience in Alarms, CCTV and Data networking and access control. Strong admin skills and ability to work under pressure towards strict deadlines. Willing to travel and work out of normal working hours. Please email CV to admin@tyekssecurity.co.za / m.bahera@tyekssecurity.co.za

A TEAM THAT NEEDS TO BE FULLY COMPETENT IN IP INSTALLATIONS. HAS A GOOD UNDERSTANDING OF ANALOGUE AND DIGITAL CAMERA SYSTEMS REMOTE VIEW SET-UP PTZ’S / ALARM SYSTEMS AND ACCESS CONTROL / A.I. SET UP NEEDS TO HAVE ACCESS TO OWN TRANSPORT AND EQUIPMENT WILL WORK PART TIME / SUBCONTRACTOR BASIS

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We specializes in installation and maintenance Alarm Systems, Electric Fencing, Cameras,Gate Motor, Garage Door Motor,Swing Gates,Intercom System Boom Gate,Networking,Electronics Repairs, Access Control Services Plans Feel Free to contact us on 0645442878 or email us on atronicsservices222gmail.com We are here to give you a peace of mind

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