Qualification and validation confirm a machine produces the expected results. A standardized on-site verification method for weighing equipment installed inside a machine speeds up the validation process for the machine manufacturer and the end user.
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![Efficient Validation for Automated Weighing](/dam/ind/GleN/2016/2016-2/GleNL-2-16_Engin_190.png/_jcr_content/renditions/cq5dam.web.1280.1280.png)
Machines and instruments require validation or qualification to prove that they produce the required results and comply with regulations. Weigh modules that are installed inside a machine or instrument are also subject to qualification.
Scientific method
METTLER TOLEDO developed the GWP® (Good Weighing Practice®) Verification. Our method is based on a calibration service that documents the achievable accuracy and measurement uncertainty of the weighing equipment under real operating conditions at the final destination. A GWP® Verification also provides a recommendation about type of calibration weight and re-calibration interval to maintain accuracy over time.
![Efficient Validation for Automated Weighing](/dam/ind/GleN/2016/2016-2/WMS1-GleN-190.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Speed up validation
A machine or instrument manufacturer saves valuable time by using the GWP® Verification Service. The standardized method is flexible to adapt to the individual situation of each machine in its particular environment. The METTLER TOLEDO service technician who performs the on-site verification will also conduct a final optimization of weighing performance, if needed. Our service technicians have the experience to identify environmental impacts to the weighing equipment, which might reduce measuring accuracy or speed.
![Efficient Validation for Automated Weighing](/dam/ind/GleN/2016/2016-2/WMS2-GleN-190.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Traceability included
The on-site calibration is done with traceable physical weights. This ensures traceability to the national standard as requested by regulations and quality control systems.
- Download guideline for automated precision weighing
- Download checklist for integrating weighing into machines