What is the primary purpose of calibration checks performed in addition to routine calibration?

What is the primary purpose of calibration checks performed in addition to routine calibration?

• A. To verify instrument accuracy between calibration events.
• B. To adjust instrument's color display.
• C. To replace the need for calibration.
• D. To increase measurement range.

Answer: (B)

Calibration checks between calibration events are used to verify that the instrument stays accurate in the interval between formal calibrations. They act as a quick sanity check to catch drift, offsets, or performance changes that can occur from temperature changes, aging, or wear, so measurements remain within acceptable tolerance until the next full calibration. They don’t adjust the color display, don’t replace the need for calibration, and don’t extend the instrument’s measurement range.

Calibration checks between calibration events are used to verify that the instrument stays accurate in the interval between formal calibrations. They act as a quick sanity check to catch drift, offsets, or performance changes that can occur from temperature changes, aging, or wear, so measurements remain within acceptable tolerance until the next full calibration. They don’t adjust the color display, don’t replace the need for calibration, and don’t extend the instrument’s measurement range.