Duomo SGF 104 Manuale d'installazione e d'uso - Pagina 5

Sfoglia online o scarica il pdf Manuale d'installazione e d'uso per Accessories Duomo SGF 104. Duomo SGF 104 8. Oxygen sensor

Positioning of the Sensor

The positioning of the sensor is an important factor for the correct function of the gas detection

control unit.

In order to obtain the best results and minimize the probabilities of false alarms, we recommend

following this diagram and to keep in mind the following general rules.

The probe should be placed at a height of about 1.60 cm from the ground, if the height of the room

is higher than 2.8m it is recommended to install it at an average height between ceiling and floor.

The sensor should not be fitted where it is likely to be affected by smoke, vapour, etc. as they could

distort indicated measurements.

The sensor must be placed away from sources of heat, suction fans, ventilation fans.

Note !

When is mounted on the wall, the orientation is obligatory, See pictures below.



Unlock hole

Gas Testing

Important - Test with calibrated gas only!

The general test should be performed by issuing gas from a pre-calibrated bottle within the

percentages marked on the bottle information label. Important: This test must be carried out

at least once a year or more frequently if required based on a risk assesment of the setting.

Test Gas Concentrations for testing the SGF104 Oxygen sensor:

DEFICIENCY OXYGEN 18% vol

OXYGEN

20,95 vol

EXCESS OXYGEN 24% vol

Ceiling mounted



Page 5