DATE:
PAGE:
Ref No:
ISSUE:
6
evolution
EVC-P
PHOTOELECTRIC SMOKE DETECTOR
INSTRUCTION MANUAL
of
4
NISM/EVC-P/01
01
Operational Test:
The purpose of the Operational Test is to confirm the
detector’s correct operation in response to a smoke
condition.
i) Take any necessary precautions at the control panel
to limit the sounding of the alarm sounders/bells and
any fire service summoning device.
ii) Introduce a discrete amount of smoke into the
detector head, e.g. using a 'No Climb -Solo' smoke test
head. Check that the detector gives an alarm condition
within 15 seconds. Check the LED indicator on the
EVC-P detector illuminates and any remote indicator
LED fitted also illuminates.
iii) After the detector has given the alarm condition,
reset the detector from the control panel. It may be
necessary to allow a short time to elapse before
resetting the detector, to allow any residual smoke
from the test to disperse.
iv) Before proceeding to the next detector, ensure that
the detector just tested does not re-operate due to the
presence of residual smoke.
Functional Test:
The detector may be returned to Nittan (UK) Ltd for
functional testing.
Cleaning:
Note: The detector head should NOT be
disassembled.
i) Carefully remove the detector 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 detector to Nittan
(UK) Ltd. for service.
Section 7 - SPECIFICATIONS
Model Reference:
-
EVC-P
Computer Reference:
-
F02N82200
Detector Type:
-
Photoelectric smoke
detector
Sensitivity
-
3% Obscuration per
metre
Supply Voltage:
-
24V dc nominal
(range 18V to 30V)
Voltage Ripple:
-
20% maximum
Alarm Characteristics: -
6V d.c. in series with
375R between
+(terminal 3) and
- (terminals 1,6)
at 25 deg. C
Monitoring Current:
-
40
µ
A max.
at 24V d.c.
Alarm Current:
-
50 mA. max.
Charging Time:
-
20 seconds
Ambient Temperature
Range:
-
-10
o
C to +55
o
C
Standard:
-
EN54-7:2000
EMC Conformance:
-
BS EN50130-4:1996
(Immunity)
BS EN61000-6-3:2001
(Emissions)
Mass:
-
118g (excluding base)
IP Rating:
-
41
