Environnement AS32M, Technical Manual, Page: 11 / 186

Duplication prohibited
AS32M
Environnement
S.A
AUGUST 2013
1–3
1.1 GENERAL
1.1.1 INTRODUCTION
The AS32M is part of the 2M series of the Environnement SA analyzers.
The AS32M analyzer allows continuous measurement of nitrogen dioxide, at low concentrations in
ambient air. The measurement of NO2 is based on the technique of detection by light absorption.
With the incorporation of recent optical and electronic measurement technologies, the analyzer offers
many advantages while requiring only limited maintenance.
The gas is sampled at 1 liter/min using a Teflon tube (6 mm external diameter) connected to the rear
panel of the analyzer. The measurement is displayed on a liquid crystal display (LCD) screen located
on the front panel.
1.1.2 DESCRIPTION
1.1.2.1 Front panel
The front panel includes the following:

General switch

Backlit LCD

16 lines, 40 columns (240 x 128 pixels)

The display provides the measurement values and other system parameters, as desired.

Keyboard with six touch-sensitive keys (refer to Figure 1-2)

The unit’s control and check functions are controlled via the keyboard.

The function of each key varies with the different screens or menus.
Figure 1-2 – Keyboard and display