EsiWelma Sensigas URS40SL Quick Start Manual

Use

Operation

Ordering

EsiWelma Srl
11/04/2011
Oxygen detectors
IP55 protection rating
11...14Vdc power supply.
Electrochemical cell sensor designed for the detection of oxygen (O
Up to three alarm thresholds plus sensing element fail.
LED on sensing element body to indicate operating status.
Automatic countdown of sensor life.
The URS20SL detectors are used to detect oxygen excess or deficiency in non-
classified areas.
An oxygen excess forms if it leaks in hospitals, laboratories, welding centres and,
more in general, where oxygen is stored.
Oxygen deficiency is an indirect measurement of the presence of other explosive or
gases that deplete the oxygen in the air.
asphyxiant
URS20SL detectors transmit data from a local bus connected with their Control Unit,
which acts as the master unit of the gas detection system.
If there is an oxygen leak or an absence of oxygen, 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.
To order, simply state the part number: URS40SL.
For special versions, on request, please contact Customer Service.
URS40SL_en.doc - rev. 0
Gas detection systems for industrial environments
URS40SL
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Oxygen detectors – URS40SL
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