1- Introduction; General Description Of The Series; System Composition - Detnov CMD-501 Manuel D'installation Et Mode D'emploi

1- Introduction

1.1- General Description of the Series

The carbon monoxide detection system has been designed for use in vehicle parking
areas, underground systems, tunnels and other places where dangerous concentrations
of CO can accumulate. The system monitors and controls the aforementioned
concentrations effectively, activating the air renewal systems if necessary.
The series is a system composed of a station, which can be extended from 1 to 3 areas,
and detectors connected to 2 wires, with a maximum distance to the last detector of 2
m. All the system's elements are microprocessed and the detectors are based on an
electrochemical cell.
The operating principle of CO detection is based on an electrochemical cell that acts
as a transducer, giving a response in current depending on the concentration of CO
and the temperature. The detector, with its latest generation microprocessor and its
own temperature sensor, does the relevant calculations to provide the variable of the
carbon monoxide concentration.
Characteristics of the system
• Modular design of 1 to 3 areas in injected ABS box, with possibility of recessed
mounting.
• Up to 32 detectors per area.
• Connection to 2 wires without polarity.
• Coverage range of up to 19.200 m
• Three relay outputs per area (2 for extraction, 1 for alarm), programmed according to
the level selected by the user.
• 2 Km line length.
The system consists of:
• Station for one area.
• Station for two areas.
• Station for three areas.
• Expansion module.
• Carbon monoxide detector (ceiling version).
• Carbon monoxide detector (wall version).
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1.2- System composition

5
GB