ABB IMRIO02 Remote I/O Module

SYMAP® is easy to program and operate. A large graphic LCD with optional LED indicators conveys

important data such as position of all connected breakers, parameter settings, and event histories

at a glance. Graphics and measurements are displayed side-by-side on the LCD, so that the user does

not have to switch between pages.

The sensor assembly is mounted on the process wall and the probe

and filter assembly extends into the process gas stream.

A pneumatic injector is used to draw a sample from the process stream and feed it to the sensor head.

Oxygen analysis is performed by an industry standard zirconia cell.

Carefully metered dilution air is added and then calibrated for COe before

the high sensitivity catalytic sensor is used to measure unburned combustibles.

The dilution air ensures a sufficient supply of oxygen to allow the COe sensor to function properly under abnormal

process conditions where extremely low combustion oxygen levels may occur.

The tightly coupled extraction system enables tight temperature and pressure control of the sensor and sample gas.

This provides a stable background for target gas measurements, which improves the accuracy of the measurements.