Bar Graph Digital Indicators
Bar graph digital indicators are used in those places where it is necessary to check the level of a process as for instance, in the industry to check the level in silos and stock piles. Bar graph digital indicators normally receive a 4-20 mA signal. Users can introduce freely their own parameters in the bar graph digital indicators. The image of the bar graph with multicolor LED display can be changed through the different alarm limits. For instance, the LED display of the bar graph digital indicators can be programmed to become red when a certain level is reached. Bar graph digital indicators have different relays to a parallel switch of the diverse default alarm limits. This fact allows for a connection with other alarms, for instance an acoustic and visual alarm siren. Digital indicators are available with one or two channels to show, for instance, temperature and relative humidity. Bar graph digital indicators can process, apart from normalized signals, thermo elements and resistance thermometers. Bar graph digital indicators can also process voltages up to 600 V. All the settings made in the bar graph digital indicators can be secured by a PIN code to avoid unauthorized personnel change the parameters. If you have any questions regarding our bar graph digital indicators, please call us on +44 ( 0 ) 2380 98703 0 and our technical staff will be pleased to help you to find the bar graph digital indicators that best suit your needs as well as advise you about the rest of our measuring instruments and scales.  

Technical information about Bar Graph Digital Indicators can be found at the following links:  

Bar graph digital indicators show an analog signal by LEDs, so the illuminated bar graph length provides information about the magnitude. Bar graph digital indicators display processes, changes in the signal and peak values which facilitate the operation of the process itself. Alarm limits can also be displayed. The upper bar of the bar graph digital indicators can change its color indicating that a fail has been detected or the limit value has been exceeded. On digital indicators with bar charts, a LEDs analog signal is made visible. Therefore, the length of the illuminated bar graph provides information on the magnitude. Digital indicators with bar charts allow to visualize quickly processes, changes in the signal and peak values, which facilitates the operation of the process in question. Alarm limits can be made visible on the screen. Thus, digital indicators with bar charts can change color in the top of the bar, which tells the user that a fault has been detected, or that a certain threshold has been passed. Digital indicators with bar charts show the measurements of the signals in a light bar, such as changes in resistance or standard signals. Digital indicators with bar graphs of two channels are used to control two magnitudes processes. A good example of this is to control temperature and humidity. 

The user can easily see in the digital indicators bar charts the behavior of measurement values. A big advantage is that this system allows you to measure directly the changes in values. Another advantage of digital indicators with bar charts is that the signal changes are identified before the 7-segment digital displays. Peak values that occur for short periods are represented safely by bar graphs. These digital displays with bar graph have long been used in electronics. Digital indicators with bar charts are used in radios and tapes to adjust the sound. Today we continue to use digital displays with bar graph in audio mixers because it tells the user a certain level of sound has been reached. In the computer industry, digital displays with bar graphs are considered comfortable units that give the user quick information about a certain state. Therefore, programmers in the installation process install digital displays with bar graphs showing the installation progress. 

If you wish to view or print a selection of bar graph digital indicators from our catalog, click the PDF symbol. 

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