CST Data Communications & Indicator Systems Flashcards
6 cards from real CST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CST Data Communications & Indicator Systems flashcards as text
What is the primary function of a scale indicator in a weighing system?
Answer: Convert the load cell signal into a human-readable weight display
A scale indicator converts the analog or digital signal from the load cell into a human-readable weight display on the operator interface.
What does 'span' calibration adjust in a scale indicator?
Answer: The full-scale output range by applying a known reference weight
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.
What is a 'division' (d) on a certified scale?
Answer: The smallest increment of weight displayed by the scale
A division (d) is the smallest increment of weight displayed on a scale, determined by the scale's accuracy class and resolution.
What does a 'multi-interval' scale do differently than a standard single-range scale?
Answer: It automatically uses finer divisions at lower weight ranges and coarser divisions at higher ranges
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.
What is the purpose of the tare function on a scale indicator?
Answer: To subtract the container weight so only the net contents weight is displayed
The tare function zeros out the weight of an empty container so only the net weight of its contents is displayed on the indicator.
Which display technology is most commonly used in modern commercial scale indicators?
Answer: LCD or LED digital display
Modern scale indicators predominantly use LCD or LED digital displays for their clarity, low power consumption, durability, and ease of reading.