E Instruments E8500 User Manual

E8500 Instruction & Operations Manual version 1.017
Page 19 of 49
CHAPTER 6 - TECHNICAL
SENSORS
The great versatility of the Model 8500 Plus Emissions system is partly due to the large
number of sensors available within a single analyzer.
These sensors are primarily gas sensors and can be grouped into three categories
based on their principle of operation:
1. Seven electrochemical gas sensors
2. Three NDIR (non-dispersive infrared) gas sensors
3. One PID (photo-ionization) sensor
4. Non-gas sensors (temperature & draft/stack gas velocity) sensors
The figure below shows the location of the sensors on their housing:

E Instruments E8500 Specifications

General

Brand	E Instruments
Model	E8500
Category	Measuring Instruments
Language	English