PDC 010

SOLD OUT – Registry Preparation: Theory and Application of the 4-Gas/PID Sensor Technology

intermediate | 8 CM Credit Hours / 0.8 CEU/COC / 0.5 CMP
Saturday | 8:00 A.M. – 5:00 P.M.
Limit: 40

Real-Time Detection Systems



This PDC provides an advanced knowledge of the use and limitations of the 4-Gas/PID portable gas detection instrumentation. This PDC is designed for current users of the most popular real-time gas detection instrument: 4-Gas or Multi-Gas meter and is intended to raise the bar of the working knowledge of this instrument. This PDC discusses the technology that resides under the cover of the instrument. The belief is that if the user has a better understanding of how the instrument works including its limitations, the application of this instrument in the field and in emergency situations will greatly improve. This PDC is perfect for industrial hygienists who want to further their knowledge in the applications and limitations of direct-read instrumentation as well as for first responders who rely on this technology to make decisions in emergency situations.

Value Added:
Post PDC, participants will be eligible to complete the written and proficiency exam and become Registered users of the 4-Gas/PID.

Attendees should have a general working knowledge of 4-Gas technology and should have experience using a multi-gas direct read gas detection instrumentation as well as experience calibrating it.

Learning Aids:
Participants must bring a laptop.

Upon completion, the participate will be able to

  • Recognize sensor poisons.
  • Distinguish cross sensitivities.
  • Show how the O2 sensor can also be used as a broad band detector.
  • Explain the difference between calibrating to methane vs. calibrating to pentane.
  • Develop a conceptual understanding of how each of the sensors work.


  • Instrument Overview
  • Review of Basic Chemical Principles
  • Oxygen Sensors
  • Combustible Gas Sensors
  • Electrochemical Sensors
  • Photoionization Detector Calibration: Methane vs. Pentane
  • Data Logging Guidelines for Selection

Transfer of Knowledge:
Instructors will evaluate participants’ understanding of the materials presented based on

  • Post PDC test
  • Hands-on demonstrations and practicum
  • Practice exercises.

Sponsoring Committee: Real-Time Detection Systems

ONLINE COURSE EVALUATION: https://www.surveymonkey.com/s/MS9RP6G