DATE:
PAGE:
Ref No:
ISSUE:
of
4
6
evolution-advanced
EV-DP
ANALOGUE ADDRESSABLE
DUAL WAVELENGTH PHOTOELECTRIC SMOKE
SENSOR
INSTRUCTION MANUAL
NOV 2003
NISM/EV-DP/01
01
Section 7 - ENVIRONMENTAL
PARAMETERS
Temperature Considerations:
Over the range from -10
o
C. to +55
o
C.
Humidity:
Relative Humidity of up to 95%, measured at 50
o
C,
non-condensing.
Section 8 - EMC
Installation
The installation shall be in accordance with the
regulations either of the approval body for an approved
system, or otherwise, to the national code of practice/
regulations for the installation of the fire alarm system,
e.g. BS 5839 part 1.
Electromagnetic Compatibility (EMC)
On a site where there is an unusually high level of
potential electrical interference, e.g. where heavy
currents are being switched or where high levels of R.F.
are prevalent, care then must be taken in the type and
routing of cables. Particular care should be given to the
separation of zone wiring from the cable carrying the
interference.
Cleaning:
Note: The sensor head should NOT be
disassembled.
i) Carefully remove the sensor head from its base.
ii) Use a soft, lint-free cloth, moistened with alcohol for
sticky deposits, to clean the plastic casing.
iii) Using a soft bristle brush (e.g. an artist's paint-
brush) carefully brush between the vanes in a linear
motion away from the smoke entry apertures.
iv) It is permissible to blow dust from the chamber,
without removing the cover, using a clean air line.
v) If the unit needs further cleaning, or is damaged or
corroded, please return the complete sensor to Nittan
(UK) Ltd. for service.
Section 6 - SPECIFICATIONS
Model Reference:
-
EV-DP
Computer Reference:
-
F14N82105
Sensor Type:
Dual wavelength
photoelectric smoke
sensor
Sensitivity:
-
Uniform response in all
EN-54 Fire Tests
Operating Current:
-
200
µ
amps
fire alarm (LED on)
5.2mA
Standard:
-
EN54 Part 7:2000
Mass:
-
118g (excluding base)
Charging Time:
-
20 seconds
Ambient Temperature
Range:
-
-10
o
C to +55
o
C.
IP Rating:
-
41
