ISA CCST Level I study plan

Define accuracy, precision, repeatability, hysteresis, drift, and span in your own words with a worked example of each

Convert between engineering units (psi/kPa, °F/°C, inches H2O/psi) and compute percent-of-span error for 20 given values

Distinguish zero shift from span error and state which adjustment corrects each

Trace a measurement back through test equipment to a calibration standard and explain why the chain matters

Sequence a five-point up/down calibration and justify the order of test points

Record as-found versus as-left data and decide pass/fail against a stated tolerance

Select test equipment whose accuracy ratio is adequate for the instrument under test

Write a calibration procedure that another technician could follow without asking questions

Apply a divide-in-half method to isolate a fault between sensor, wiring, and receiver

Compute expected current at a given process value in a 4-20 mA loop and use that number to predict a reading

Demonstrate safe use of a multimeter for voltage, current, and resistance checks on a de-energized and energized loop

Identify open circuit, short, ground fault, and high-resistance connection from symptom patterns

Classify sensor-side failures versus controller I/O and power supply failures by observable symptoms

Diagnose noise, grounding, and shielding problems from intermittent or offset readings

Differentiate calibration drift from an actual hardware fault before replacing parts

Document a fault, the test that confirmed it, and the corrective action in a standard format

Build a preventive maintenance schedule from manufacturer intervals and service criticality

List inspection points for a transmitter, a control valve, and a representative sample system

Apply lockout/tagout and isolation steps before opening a loop or removing an instrument

Identify wear items and specify spare parts held on hand with justification

Compare bench repair versus field repair and state when each is appropriate

Sequence a repair so that calibration and verification occur after reassembly, not before

Write pass/fail verification criteria into a work order before starting the job

Describe recordkeeping that links a repair to the calibration history of the device

Read a loop on a P&ID and cross-check it against the instrument index and wiring drawings

Perform a point-to-point continuity and polarity check from field device to control system terminal

Execute a loop check that verifies indication, output action, and alarm setpoints at the operator interface

Distinguish cold commissioning from warm commissioning and list the prerequisites for each

Sequence a start-up from utility checks through first-line-up and document the hold points

Compile and prioritize a punch list from commissioning discrepancies

Assemble turnover documentation a client would accept at handover

Take a timed 100-question practice exam spanning all four domains and review every missed item