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Chapter 12
F. Calibration
1. CALIBRATION SYSTEMS
Describe the principles of calibration,
including its basic purpose, methods of
establishing and monitoring calibration
intervals, records, coding schemes, etc.
(Application)
Part II.F.1
Body of Knowledge II.F.1
The purpose of calibration is to ensure that various types of measurement and
process equipment accurately and consistently perform as designed and intended.
Further, the purpose of calibration is to ensure that equipment accuracy and consistency
remain correlated with known quantities or values, which are commonly
referred to as standards. The basic principle of calibration refers to the process of
aligning measurement and process equipment performance with known quantities
or values as specified in standards.
A calibration system, like any type of system, is composed of inputs, process,
outputs, and feedback, as identified in Figure 12.1.
Calibration Interval Prompt
The calibration process is initiated in one of two ways: 1) a piece of malfunctioning
equipment is submitted for repair and calibration, or 2) a piece of equipment
is identified as being in need of calibration in accordance with an established
interval.
A calibration interval is an interval based on time, such as weekly, monthly,
quarterly, semiannually, annually, or biannually. A calibration interval may also
be an interval based on cycles of operation, such as every 1000 uses. A calibration
interval is established for equipment identified as being influenced by, or characteristic
of, any of the following:
1. Regulatory or oversight control
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