Technical Manual: EV-UV - 000023 (Changes are subject to DCRN)
4
Section 4 - LOCATION
Note: Use correct sensitivity position. See Section 12 on page 5 for
more details on positioning.
i)
Determine suitable mounting location according to supervision
angle, and effective detection range.
ii)
Avoid mounting at such angles that two detectors supervise each
others protected area unnecessarily.
iii)
Avoid mounting around openings for ventilation because of dust
and dirt contamination.
iv)
Avoid mounting in such as way as the sensor covers external
doors or windows, as ultraviolet light may enter the range of the
detector and cause false alarms.
v)
Avoid mounting in areas such as workshops in case of false alarm
from welding etc. If this is unavoidable the source should be
shielded with plain glass.
vi)
In the case of supervising certain obstructions ensure there are no
dead areas.
Section 5 - INSTALLATION
In normal use, the
EV-UV
sensor will be installed at ceiling level,
however it is permissable to mount the sensor at an angle (See
Section 12 for details). Pass the field wiring through the cable hole
in the centre and from the rear of the base. Offer up and affix the
base to the ceiling or conduit fitting with screws via the base
mounting holes. Consider visibility of the sensor's integral LED alarm
indicator when mounting the base. Connect the field wiring to the
base terminals, as detailed on page 8 making sure the wiring does
not obstruct fitting of the detector head. Fit the sensor head by
inserting it into the base and turning clockwise until the lugs align
with the base.
Note: The address must be set before the sensor is fitted into place.
Keep the plastic dust cover supplied over the sensor until the system
is fitted to prevent the quartz window from becoming scratched.
NOTE: THE PLASTIC DUST COVER MUST BE RE- MOVED FROM THE
SENSOR IN ORDER FOR THE SENSOR TO FUNCTION CORRECTLY.
• Ref No: NISM/EV-UV/01 • Date: 16.04.09 • Issue: 1
• evolution advanced • EV-UV • analogue addressable ultraviolet flame sensor
instruction manual
