Professional Analytical and Consulting Services

Chemical Sensors for Airborne Detection - Industrial Safety and Hygiene

PACS Course Number 810

9 AM to 5 PM

This course is designed and intended to present a fundamental understanding of gas sensing with specific reference to industrial safety. The primary goal of this course is to be a resource for personnel who are charged with making critical decisions with regard to choice, specification, or purchase of systems intended to perform environmental monitoring of chemicals important to industrial safety and hygiene. Therefore, the needs of Safety Officers, First Responders, or Industrial hygienists and those who manage or advise such personnel will be of primary interest. Major and minor (in terms of numbers of units deployed in the field) types of sensors will be presented, along with underlying principles of operations and the idiosyncrasies, and interpretation of data. Sufficient background information will be presented so that students without technical degrees will obtain maximum benefit from the coursework. However, the topics will be covered in sufficient detail that the advanced student will obtain an enhanced understanding of these very important sensor types.

Dr. Towner B. Scheffler is your highly qualified instructor. Dr. Scheffler's current research interests are focused on the development of new and novel means of gas sensing, particularly with regard to the detection and measurement of Chemical Warfare Agents (CWAs) and Toxic Industrial Chemicals (TICs). He is an authority on electrochemical (amperometric) gas sensors for toxic gases such as carbon monoxide, and also for gases of medical and safety interest, such as oxygen. Other research interests include heated catalytic bead sensors for the detection of potentially explosive atmospheres. He is also active in the development of spectroscopic methods for the detection of gases and in various types of chemi-absorptive and ionization sensors, also intended for the detection of gases. Dr. Scheffler holds twelve US and foreign patents in the general area of gas sensing.

Register by mailing a copy of the COURSE REGISTRATION FORM or an associated CONFERENCE REGISTRATION FORM. Send it with a payment of $1250 to secure your course attendance. Hotel information and a map will be sent to confirm your registration. Please list your special interest(s) on the registration form. Enrollment is limited to assure your maximum course benefits. On-site PACS courses are available (most PACS courses can be provided at your time and place). Telephone Henry Nowicki or Barb Sherman at 1.724.457.6576 if you need further information. PACS also provides laboratory testing and consulting services.

Chemical Sensors for Airborne Detection - Industrial Safety and Hygiene

Course Instructor: Dr. Towner Scheffler under the auspices of PACS

Course Outline
A. Welcome
1. Announcements
2. Introductions
B. Industrial Hygiene
1. The "big four" -- CO, H2S, O2, & combustible gas
2. Minor variants
C. Characteristics of "good" gas sensors
D. Electrochemical Sensors -- CO, H2S, &O2
1. Introduction to electrochemistry
2. From batteries to sensors
3. Amperometric gas sensors
E. Combustible gas sensors
1. Explosive Atmospheres
2. Sensor Types
F. Other sensor types
1. Photoionization detectors (PID)
2. Potential Emerging Technologies

Wrap up and questions

View the PACS Short Course Schedule

Course participants are encouraged to e-mail questions to Dr. Henry Nowicki at

Please NOTE: List your special interest on the registration form. We will try to accommodate your interest. PACS also provides internet consulting information at

Training is an Investment in employee employer Future!

For more information please contact:

Henry Nowicki, Ph.D. / M.B.A
PACS Testing, Consulting and Training
409 Meade Drive, Coraopolis, PA 15108
Phone: 1. 724. 457. 6576 or 1. 800. 367. 2587
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