EsiWelma Srl
URD40SE - EW0526D1_en.docx
CO
2
gas detectors – URD40SE
16/06/2017
Gas detection systems for industrial environments
4/4
Checklist after
mechanical and
electrical installation
Before using the sensor it must be recognised by the Control Unit through an
assignment operation (refer to the manual of the aforesaid Control Unit for correct
execution).
The sensors are factory calibrated so they normally do not require any other calibration
once installed. Still, after installation, an operational check of the sensors is
recommended.
The status LED means the following:
Flashing at 2Hz
NOT ASSIGNED
Flashing about every 10 sec
ASSIGNED AND WORKING
Steady
ALARM
Maintenance
Routine
Corrective
Decommissioning
A sensor functional test should be carried out every three-six months.
Routine maintenance involves repeating the same tests as set forth in “checklist
after mechanical and electrical installation”.
If any abnormalities are found during routine sensor maintenance, return the sensor
concerned to the supplier / installer, who in turn will send it back to the
manufacturer.
Sensors may need to be re-calibrated, using the
TUL40..
gas calibration kit and the
TUS40-40
handheld terminal, which must be connected to the sensor via the
communication on the Power supply and BUS connector.
For the re-calibration procedure, see the instructions supplied with the handheld
terminal.
Remove power from the detector, disconnect all wiring and conduits and dismount
the housing from all the blocking systems.
Warranty
Warranty on EsiWelma products is valid for 12 months from installation date and
no longer than 24 months from manufacturing date on the product. Installation
data, stamp and signature on the data sheet filled in by the installer will be
considered proof for warranty.
A copy of the warranty data sheet must be sent when returning the product under
warranty.
Accessories
TUL40..
Gas calibration Kit
TUS40
Handheld terminal
CRG40
Gas collecting cone
PAP40
Powerful jets protection
Dimensions and weight
Dimensions (HxWxD): 164x100x82mm. Weight: 0.8Kg
