CST CST Data Communications & Indicator Systems 1

Question 1

What is the primary function of a scale indicator in a weighing system?

Accepted Answer

Convert the load cell signal into a human-readable weight display

Answer

A scale indicator converts the analog or digital signal from the load cell into a human-readable weight display on the operator interface.

Question 2

What does 'span' calibration adjust in a scale indicator?

Accepted Answer

The full-scale output range by applying a known reference weight

Answer

Span calibration sets the full-scale output range by applying a known test weight and adjusting the indicator's gain to read the correct value.

Question 3

What is a 'division' (d) on a certified scale?

Accepted Answer

The smallest increment of weight displayed by the scale

Answer

A division (d) is the smallest increment of weight displayed on a scale, determined by the scale's accuracy class and resolution.

Question 4

What does a 'multi-interval' scale do differently than a standard single-range scale?

Accepted Answer

It automatically uses finer divisions at lower weight ranges and coarser divisions at higher ranges

Answer

A multi-interval scale switches to finer graduation sizes at lower weight ranges and coarser sizes at higher ranges, improving accuracy across its full capacity.

Question 5

What is the purpose of the tare function on a scale indicator?

Accepted Answer

To subtract the container weight so only the net contents weight is displayed

Answer

The tare function zeros out the weight of an empty container so only the net weight of its contents is displayed on the indicator.

(CST) Certified Scale Technicians Practice Test

(CST) Certified Scale Technicians Practice Test

CST CST Data Communications & Indicator Systems 1