Large-size numeric electronic displays are programmable devices for displaying numerical information. They are manufactured on the basis of high-illumination, 7-segment LED modules, or electromagnetic bistable elements, which by their parameters ensure very good displaying properties and long lifetime.
These devices, readable from distances of up to tens of meters, are primarily used as output display devices inelectronic information, control, or monitoring systems, or as autonomous display units, controlled by a numerical keyboard.
Technical parameters and outer design in terms of the quality of protection against the surrounding environment are adapted to specific requirements of individual applications, for which they are aimed.
Display Applications
Displays are used as external display units (so called weight indicators) in industrial weighing systems, on overhead travelling and portal cranes, product counters in a production systems, for reel length measuring, to display a temperature of technological processes, to display speed of the rotation etc. Based on customer‘s setting and NDI/NDU LED modules it’s possible to tailor the display unit exactly to the customer demands – the most of custom made displays are used as production/process monitoring displays to show production details, such as target count, actual count, difference, percentage; actual count, waste, net output; etc. Displays can be connected easily through Ethernet interface to the LAN so can be controlled by technological PC. There are also other connection options, e.g. RS232 or RS485 to connect to PLC unit, Modbus RTU, Profibus DP or LonWorks. Industrial sensors are standardly equipped with 4-20mA (0-20mA) or 0-10V outputs, so if appropriate A/D converter is built into the display, these sensors are available for the displays as well. On custom order we are able to connect incremental rotary coder (IRC) to the NDI/NDU display to count the pulses and detect the direction of the rotation, this method is used for e.g. continuous length measurement (reel lengths).