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Weighing Applications

Material Feed Control by Weight (GIW/LIW)

Typically deployed in two manufacturing areas: MAKE (batching and blending) or PACK (filling and dispensing). It may be used in either “gain in weight” or “loss in weight” applications, usually abbreviated to GIW and LIW.

In this application, the goal is to feed the exact amount of material required, in the minimum amount of time, every time. Consistency is key to deliver the best OEE (Operational Equipment Efficiency) possible, a measure of availability, performance, and quality. The additional benefit is accurate fills reduce giving product away or underfills, that risk regulatory non-compliance.

Feed control is accomplished using: 1 or 2 speed feed control; on-off or continuous final control elements; fixed, adaptive, or predictive preacts; manual or automatic jog functions.

Hardy has multiple products that can be installed to manage this application in different ways depending on the material/s being fed. They are:

  1. HI1746 (PLC plug-in weigh scale module, includes integrated weight control function with fixed preact)
  2. HI2151/30 (instrument, includes integrated weight control function with fixed preact)
  3. HI3010 (instrument, includes integrated weight control function with fixed/adaptive preact)
  4. HI3030 (instrument, includes integrated weight control function with fixed preact)
  5. HI4050 with mapping (instrument, includes integrated weight control function with fixed/adaptive preact)
  6. HI1756-nDF (PLC plug-in dispenser/filler module, includes integrated weight control function with adaptive/predictive preact)
  7. Any Hardy PLC plug-in weigh scale module or Hardy instrument IF weight control functionality is executed in a PLC