NCCER Instrumentation case studies
NCCER Instrumentation · Put your knowledge to work in context.
The NCCER Instrumentation Journey-Level Assessment is part of NCCER's National Craft Assessment and Certification Program (NCACP), which offers more than 50 knowledge- and performance-based assessments across construction crafts. The Instrumentation assessment appears among the craft filters on NCCER's assessment listing at Journey Level, and is aimed at contractors and owners verifying journey-level competency before deployment, workforce development teams targeting faster upskilling, HR and operations leaders building skills-based talent pipelines, and craft professionals seeking to validate experience and advance their careers. Certification requires passing both a written knowledge assessment and a performance verification, a set of craft-specific tasks performed safely and successfully under the supervision of a performance evaluator. Candidates should expect coverage of instrument safety and code requirements, installation and mounting practices, tubing, piping and wiring termination, calibration and loop checking, and control system troubleshooting and maintenance. The NCCER Instrumentation case studies are 5 cases and about 3,774 words.
1Like-for-Like Swap in a Division 1 Area
You are an instrument technician at a products terminal. The area around the transfer pumps is classified Class I, Division 1, Group D on the site area classification drawing.
689 words, about 3 min2DP Flow Transmitter That Walks With the Time of Day
horizontal natural gas line at 250 psig uses an orifice plate for flow measurement. The taps are at the 3 and 9 o'clock positions.
667 words, about 3 min3Noisy Flow Signal and a Flattened Air Line
You are commissioning a new magnetic flowmeter on a 4-in. chemical transfer line.
773 words, about 4 min4Five-Point As-Found That Fails High Across the Top
A 4-20 mA differential-pressure transmitter is ranged 0-250 inH2O and used for a level application. The site calibration procedure allows a tolerance of plus or minus 0.5% of span.
892 words, about 4 min5Flow Loop Hunting After Being Put in Auto
A flow control loop has a magnetic flowmeter, a DCS PID controller, and a 4-in. air-to-open globe valve with a smart positioner.
753 words, about 4 min