CST Scale Installation & Calibration Procedures

Question 1

Why is proper leveling critical during scale installation?

Accepted Answer

To ensure accurate weight distribution

Answer

Proper leveling is crucial because scales are designed to measure force (weight) evenly across their load cells. An unlevel surface can cause uneven weight distribution, leading to inaccurate readings as the load cells may not register the true weight correctly.

Question 2

What is the purpose of scale calibration?

Accepted Answer

To ensure measurement accuracy

Answer

Scale calibration is the process of adjusting a scale to ensure it provides accurate measurements against a known standard. This is essential for reliable results, as scales can drift over time due to wear, environmental factors, or changes in components.

Question 3

Which device is used for scale calibration?

Accepted Answer

Certified test weights

Answer

Certified test weights are precision instruments with a known, traceable mass, used to verify and adjust a scale's accuracy. Using these standardized weights ensures that the scale measures consistently and correctly according to established metrological standards.

Question 4

When should a scale be recalibrated?

Accepted Answer

After moving, maintenance, or regularly

Answer

Recalibration is necessary after moving a scale because its internal components or leveling can be disturbed, affecting accuracy. It's also required after maintenance that might impact measurement, and regularly as part of preventative maintenance to counteract calibration drift from normal use and environmental factors.

Question 5

What error may occur if a scale is installed on an uneven surface?

Accepted Answer

Inaccurate weight measurements

Answer

Installing a scale on an uneven surface causes the weight to be distributed unevenly across the load cells. This uneven distribution prevents the scale from accurately sensing the true force applied, leading to incorrect and unreliable weight readings.

(CST) Certified Scale Technicians Practice Test

(CST) Certified Scale Technicians Practice Test

CST Scale Installation & Calibration Procedures