User Guide
|
Danfoss Gas sensor. Type DGS. Modbus or Service Tool display operation
22 | RS8KD102
© Danfoss | DCS (ADAP-KOOL®) | 2018.12
6
Technician use only!
This unit must be installed by a suitably qualified
technician who will install this unit in accordance
with these instructions and the standards set
down in their particular industry/country.
Suitably qualified operators of the unit should be
aware of the regulations and standards set down
by their industry/country for the operation of this
unit.
These notes are only intended as a guide and
the manufacturer bears no responsibility for the
installation or operation of this unit.
Failure to install and operate the unit in
accordance with these instructions and with
industry guidelines may cause serious injury
including death and the manufacturer will not be
held responsible in this regard.
It is the installer’s responsibility to adequately
ensure that the equipment is installed
correctly and set up accordingly based on the
environment and the application in which the
products are being used.
6.1
Regular Test
Please observe that DGS works as a safety
device securing a reaction to a detected high
gas concentration. If a leakage occurs, the
DGS will provide alarm functions, but it will
not solve or take care of the leakage root
cause itself.
6.2
Location
For all gas’ heavier than air, Danfoss recommends
locating the sensor head app. 30cm (12”) above
the floor and if possible in the air flow. All gas’
measured with these DGS-sensors are heavier
than air: HFC grp 1, HFC grp 2, HFC grp 3, CO2
and Propane.
For further details on Test and Location please
see the Danfoss Gas Detection application guide,
DKRCI.PA.S00.A-.02
To maintain product performance and comply
with the local requirements the DGS must be
tested regularly.
DGS’s are provided with a test button that may
be activated to validate the alarm reactions.
Additionally the sensors must be tested by either
bump test or calibration.
Danfoss recommends the following minimum
calibration intervals:
DGS-IR: 60 months
DGS-SC: 12 months
DGS-PE: 6 months
With DGS-IR it is recommended to do an annual
bump test in years without calibration.
Check local regulations on calibration or testing
requirements.
After exposure to a substantial gas leak, the
sensor should be checked by bump test or
calibration and replaced if necessary.