Data Reference Tables

• Units for Sensor Specifications
• English-Metric Conversion
• Drill Sizes for Mounting Hardware
• Velocity, Length and Temperature Conversion
• Trigonometric Functions & Formulas
• Basic Electrical Formulas
• Resistor Color Codes
• Copper Wire Information
• NEMA Hazardous Location Classifications
• NEMA & IP Enclosure Ratings for Nonhazardous Locations
• Relative Chemical Resistance of Sensor Materials

Definition Of Sensing Terms

Government Agencies

Department of Labor
Environmental Protection Agency
OSHA - Occupational Safety & Health Administration Home Page

Photoelectrics Made Easy: Sensing Theory Primer (740K)
This Adobe Acrobat PDF file is an overview of the history, science, and application of photoelectric sensors.