EsiWelma Srl
URD40SE - EW0526D1_en.docx
CO
2
gas detectors – URD40SE
16/06/2017
Gas detection systems for industrial environments
1/4
Gas detectors
Carbon dioxide (CO
2
)
ATEX certified (II 2G Ex d IIC T6)
URD40SE
Sssssss
11…14Vdc power supply.
Non Dispersive Infrared (NDIR) sensor designed for the detection of carbon dioxide
(CO
2
).
Up to three alarm thresholds plus sensing element fail.
LED on sensing element body to indicate operating status.
Automatic countdown of sensor life.
Use
The URD40SE detectors are used to detect the presence of carbon dioxide (CO
2
), in
areas classified as Zone 1.
It detects carbon dioxide leaks or emissions in industrial environments, hospitals,
fermentation plants, greenhouses, stables and, more in general, where carbon dioxide
is stored, generated or produced.
URD40SE detectors transmit data from a local bus connected with their Control Unit,
which acts as the master unit of the gas detection system.
Operation
If there is a gas leakage, the detector compares the measured concentration value
with the threshold limit setpoints and energises the system relays if associate.
Alarm information is transmitted to the Control Unit, which energises its own internal
relay module (MR0) and the remote Relay and Display modules depending on the
associations.
Ordering
To order, simply state the part number:
URD40SE
.
For special versions, on request, please contact Customer Service.
