EW0826A4_en - rev. A
Oxygen detectors
–
URS20SS
05/10/2020
Gas detection systems for industrial environments
3/8
Sensors lifetime
Sensor average lifetime (see technical characteristics) is referred to a typical usage
in a pollution-free environment. Presence of a high concentration of pollutants can
shorten the lifetime of the sensing element.
Once the detection system starts up, it has to be supplied with energy during all the
lifetime of its sensors.
Seasonal use of the detection system is not recommended.
Installation
Oxygen excess
Since oxygen weighs more or less the same as air, unless there is forced or natural air
circulation, it tends to spread at the point of the leak.
So, the excess oxygen detectors must be installed near any likely leakage points, in order
to detect the excess oxygen as quickly as possible.
Oxygen deficiency
Detection of oxygen deficiency has the purpose of indirectly detecting the presence of other
gases that deplete the oxygen in the air, therefore causing asphyxiation problems, for
example.
In this case, the detectors must be located at the breathing height of the occupants in the
premises.
Take into consideration the following specific installation guidelines, as well as the above
instructions, for location of the detectors.
The detectors must be installed:
1. where accidental gas leakages are possible
2. at least 1.5m away from heat sources or from vent holes
3. not in spaces where ventilation is poor and where gas pockets may form
4. away from hindrances to natural gas flow
5. away from equipment that may leak gas during normal operations
6. in environments with a temperature range of -20°C to 50°C and relative humidity
below 90% (non-condensing)
7. Disconnect equipment from the power supply when mounting and dismantling
detectors.
Environmental
compatibility
and disposal
This product has been designed and constructed using materials and processes that
take into account the environmental issue. Refer to the following notes for disposal of
the product at the end of its working life, or when it is replaced:
-
for disposal purposes, this product is classified as an electric and electronic device:
do not dispose of it with normal household waste, in particular as regards the printed
circuit
-
comply with all local laws in force
-
as far as possible reuse basic materials to keep environmental impact to a minimum
-
use local depots and waste recycling companies, or contact the supplier or
manufacturer to return used products or to ask for information on environmental
compatibility and waste disposal
the product packaging can be reused. Keep it for future use or to return the product to
the supplier.
