In three-phase systems with distributed neutral three current transformers are required. After having defined the type of instrument best suited to the needs, if the measurement is performed by indirect insertion, the accessories of the measuring system, such as current and voltage transformers must be chosen with care. In multifunction instruments, not only the cables connected to the measurement, but also the RS485 serial port and the analog and digital inputs and outputs must be wired. Connecting analog instruments is very simple; you just need to connect the phase and neutral cables to the instrument. If you're sitting in the office right now, and you look to see your thermostat, there's usually RS-485 transceivers connecting that from there to basically the control unit in the building. RS-485 is used in basically connecting the temp sensor or thermostat in the room to the master controller. Power to heat buildings is via 215 substations, of which 191 are connected to the Central Heating Plant, and 24 to the boiler room Podczele. What it does is that's after sensing the temperature in the room and yet when you're making adjustment to the thermostat, it actually sends the data to the controller, which could be controlling that, the temperature, turning on and off the AC to heat or cool the room up.

It basically goes to a remote PC that has all the pricing information and it sends the data back to you. SMTP - the units can be ordered with the firmware option that sends SMTP messages to a central 'mail server'as an alternative means of integration. The basic rate is 54 Mb / s, but in practice works best in the range of 20 Mb / sRadio network in the case of district heating has proven to be an excellent alternative to other types of communication systems and in this application is an innovative solution. It contributes to the reduction of transmission losses, thus increasing network reliability and comfort of heat consumers. In addition to the ease of integration, minimum requirement of processing power and reliability of the connectors further helps to favor these serial over Ethernet communications.A device server is used to control the whole setup via a networking technology. Paperless chart recording is a much more user-friendly solution with an interactive dialogue simplifying both setup and operation procedures.

The VR-18 Paperless Chart Recorder can be connected to a PC with an Ethernet cable allowing students to use the Brainchild's FREE software, allowing for streaming live data or downloading the data to an Excel spreadsheet to further manipulate the information for reports and assignments. The Brainchild's programmable alarms and messages give instant notification of high levels of temperature and other critical events. Users can browse through the alarm list or acknowledge alarms easily via function keys on the vertical bar. Transformers can be of different types, depending on the assembly system: a through cable or a cable with a coiled primary, transformers for assembly on horizontal or vertical bars. Students view the collected data in the display format or choose additional formats including vertical trend, horizontal trend, bar graph, and numerical. After the experiment is completed, the class can view statistics from the recorded data including instant, average, min and max values. Teachers can set up the display to a projector, allowing an entire class to view the data representations, and students can print the data collected from any of the display formats.

These devices allow you to view and modify the parameters of heat controllers, connected to the RS485 port via the communication protocol and the NCP to monitor the parameters of heat meters (Mbus), connected to RS232 port via a converter RS232/Mbus (M-bus master). Additionally, the Brainchild's standard Ethernet and optional RS-232/RS-422/RS485 communication enable users to access data onsite from a remote location via the RS serial interface or Ethernet networking. In connection with the need for rapid response by the central location for all types of heating systems failures and malfunctions substations located in many parts of the city, MEC Kolobrzeg decided to execute a remote system monitoring and control of heating systems.The monitoring system is based on Citect SCADA visualization software v. 6.0. This software is a standard for the entire heating system to monitor the MEC Kolobrzeg.Delivered new server running under operating system Windows Server 2003. Visualization of the nodes attached to an existing application that supports the entire heating plant.

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