Choosing a digital weight indicator that meets your requirements is an important part of designing new weighing systems or replacing components of an older, existing scale system.
This device is connected to the load cell and reads the electronic information sent from the load cell to provide information on the weight of the load on the scale. The type of information provided by the weight indicator is important as it can impact the efficiency of the system, providing the right types of measurements in the units required.
For example, it may be important to have the net weight of the load in kilograms, or perhaps the gross weight value of the load in pounds. Having the option to switch between Net and Gross weight and kilograms and pounds has advantages for all applications, and is certainly an important requirement for any new or replacement weight indicator.
Digital Readout
Another essential requirement of the digital weight indicator is the actual readout function. It needs to be in an LED display format for easy line of sign viewing, and it should be updated on a schedule that provides for the greatest accuracy. Some of the top indicators will update 20 times per second and have the capacity for 985,000 counts of display resolution.
In addition to the digital readout on the unit itself, it should be fully compatible with your current data system using analog, Allen-Bradley Remote I/O, BCD or Profibus communication systems. Connections to printers may also be an option to consider if the scale is not configured to any computer software program in place.
This printout or the computer records, serve as an important quality control verification in all types of batching and blending, inventory control, product packaging and filling or other types of production processes.
Inputting Commands
Depending on the type and quality of the digital weight indicator there will be a wide range of options for inputting and accessing data or a more limited range. Ideally having the ability to input commands into the system using the computer software and the communication port, the buttons provided on the unit itself, or through a remote function connector are all good options to have in place.
Different systems will also require specific mounting locations. There are some indicators that can be placed up to five feet away from the instrument body, allowing for optimal configuration of the system for operator use and safety of the equipment.
