User Manual

4
1. PRESENTATION
1.1 INTRODUCTION
Carbon dioxide is a colourless and odourless gas. It is not toxic, but at high concentrations can interfere with mental
concentration and cause headaches. Outdoor air contains approximately 0.04% (400 ppm) CO
2
. In an indoor environment,
human activity (breathing) can rapidly increase this concentration to values in excess of 1000 ppm (for example in meeting
rooms or school classrooms). It is for this reason that the level of CO
2
is an excellent indicator of the efficacy of the renewal of
indoor air.
The ambient temperature and relative humidity are two more important quantities in the monitoring of indoor air quality. Beyond
certain values, they can cause discomfort and favour the propagation of moulds that release allergenic or irritant substances
into the air.
The C.A 1510 is an instrument for measuring physical quantities that combines the following functions:
 Measurement of the concentration of carbon dioxide in the air (CO
2
);
 Measurement of the ambient temperature;
 Measurement of the relative humidity;
It works out air quality criteria based either on the level of CO
2
or on a combination of the three physical quantities measured.
The device is a response to decree no. 2012-14 of 5 January 2012 concerning the evaluation of means of ventilation and the
measurement of pollutants in the context of measurements of CO
2
.
1.2 SIDE VIEW
Temperature and humidity sensors
CO
2
sensor
LCD display unit
 Short press: Back-lighting
 Long press: Energy-saving function
 Short press: 1D and 3D modes
 Long press:
Change of unit of
temperature
Long press: Manual recording
Buzzer
 Short press: Display hold
 Long press: Bluetooth
On/Off

Short press: Enter the MIN MAX
function and view the various extreme
values

Long press: exit from the MIN
function MAX
On the keys, the function written above the line is invoked by a short press, the function written below the line by a long
press.