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Test Instruments and Devices

Instrumentation Skills

This comprehensive interactive multimedia training program was produced in association with the Instrument Society of America. (ISA). This four individual lesson program trains participants on the principles and procedures of various test devices.

Audience: This program is excellent for control personnel and instrument technicians as well as for the multi-craft training needs of process and manufacturing facilities.

Number of Courses: 2

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Course 1 – Pneumatic and Hydraulic Test Devices

Prerequisites: This lesson is designed for participants familiar with process control instruments. An understanding of basic algebra is also recommended.

Description: This lesson presents operating principles and procedures for using a variety of test devices including manometers, test gages, portable pneumatic and hydraulic calibrators, and pneumatic and hydraulic deadweight testers. Selection of the appropriate test device for a particular instrument calibration is also discussed.


  • Identify the facility’s primary and secondary standard pneumatic test equipment
  • Identify the pressure reading of a liquid in a manometer and type manometer to use
  • Recognize and identify the factors that affect accuracy of manometers
  • Read the pressure on a u-tube manometer
  • Determine the type of pressure being measured when given a u-tube connected to a vacuum source
  • Adjust the manometer scale to zero
  • Identify the point on the manometer that should be connected to a pressure source to measure positive pressure
  • Determine which test gage should be used for an instrument having high and/or low pressure range
  • Identify the required accuracy of the test gage when given the accuracy rating of both the instrument and test gage
  • Identify the correct setting of the regulators and selector valve on a pneumatic calibrator to prepare for testing
  • Identify the correct type of calibrator for testing high or low pressures
  • Identify the means by which the balance point on the deadweight tester is achieved
  • Identify the factors that can affect the accuracy of hydraulic and pneumatic deadweight testers

Course 2 – Electronic Test Devices

Prerequisites: This lesson is designed for participants familiar with basic digital electronic theory. Knowledge of the functions of electronic instruments such as pressure, temperature, flow, level, and weight transmitters is recommended.

Description: This lesson describes the operation of electronic test devices as well as the measurement units used with typical test procedures. The lesson also presents the operation of multimeters and multifunction electronic calibrators in electronic test procedures.


  • Identify the electronic instrument or device that utilizes an electronic value as part of its normal operating procedures
  • Identify safety procedures associated with the operation of electronic test devices
  • Describe the function of each user control of a multimeter
  • Zero the meter display of an analog multimeter
  • Measure an electronic input value of a multimeter
  • Describe the function of each user control of a multi-function electronic calibrator
  • Measure an electronic input value of a multi-function electronic calibrator
  • Generate an electronic value to test an instrument using a multi-function electronic calibrator