Nittan Evolution EVC-DP User manual

EVCDP
PHOTOELECTRIC
SMOKE DETECTOR
instruction manual
NITTAN EUROPE LTD. Hipley Street, Old Woking, Surrey, England, GU22 9LQ. UK
Tel: [phone] • Fax: [phone]
Web Site: www.nittan.co.uk • E-mail: [email protected]
Quality System Certificate No. 041
Assessed to BS EN ISO 9001
• Ref No: NISM/EVC-DP/03 • Date: 19.02.19 • Issue: 3
• evolution • EVC-DP • photoelectric smoke detector instuction manual

Technical Manual: EVC-DP 000025 (Changes are subject to DCRN)
evolution.....
The EVC-DP Photoelectric Smoke Detector forms part of a range of fire
detectors from Nittan Europe Ltd. called evolution.
The EVC-DP is an elegantly designed, low profile detector which is
aesthetically pleasing, thus enabling it to blend unobtrusively into modern
working environments.
The EVC-DP is compatible with other existing conventional fire detection
systems.
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Technical Manual: EVC-DP 000025 (Changes are subject to DCRN)
Section 1 - INTRODUCTION
The EVC-DP is an attractively-styled, low profile photoelectric smoke detector
for use in conventional fire detection systems.
The EVC-DP has a chemically etched, stainless steel insect screen therefore
reducing the ingress of insects and airborne contaminants.
EVC-DP features:
• Optical detector, detecting visible particles of combustion
• Low profile, stylish appearance
• Supplied with protective dust cover, (remove during commissioning)
• Non-polarised terminals
• Unauthorised head removal signal facility
• Low monitoring current
• OMNIVIEW™ 360º LED fire alarm indicator
• Remote indicator output
• Compatible with UB-4, UB-4SD, STB-4SE.
Section 2 - OPERATION
The smoke chamber of the EVC-DP is constructed so that light cannot enter
from outside, but smoke can pass through the chamber slots. The EVC-DP
utilises the light scatter sensing principle. The LED’s pulse every 4 seconds to
maintain a low monitoring current. A quick charge time (1 minute in clean
air) is also achieved. The detector incorporates an alarm verification function
which requires two successive pulses before an alarm is given.
The interval between the first and second pulse is automatically reduced to
1 second after the first alarm level (3%/m) is monitored. The final Alarm
threshold is set at 7.6%/m. The detector design provides strong immunity to air
velocities, contamination and RF interference.
The geometry of the smoke chamber and optics support assembly is designed
to give the best possible signal to noise ratio, resulting in excellent response
characteristics.
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CONTENTS:-
Section 1
Introduction Page 3
Section 2
Operation Page 3
Section 3
Detector Models Page 4
Section 4
Base Models Page 4
Section 5
Installation Page 4
Section 6
Maintenance &
Cleaning Page 5
Section 7
Specification Page 7
Section 8
Environmental
Parameters: Page 8
- Temperature Page 8
- Humidity Page 8
Section 9
EMC Page 8
Section 10
Connections Page 9
Section 11
Dimensions Page 9
Section 12
Disposal Page 10
Section 13
ROHS Compliance Page 10
Statement

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Section 3 - DETECTOR MODELS
The EVC-DP photoelectric smoke detector is supplied, as standard,
with four terminals.
The EVC-DP has the facility to activate a remote LED
indicator or auxiliary function, as standard.
The terminals on the EVC-DP detector head are configured
as follows:-
Terminal 1 = zone negative in
Terminal 3 = zone positive in/out
Terminal 6 = zone negative out
Terminal 5 = 2 mA @ 24V d.c. switched output
Section 4 - BASE MODELS
A variety of bases are available for use with the EVC-DP detector.
It is important to use the correct base for each application.
The standard range available is as follows:-
i) UB-4 base: having 4 terminals, for standard use with EVC-DP
detector including the auxiliary output function.
ii) UB-4SD base: This is identical to the standard UB-4 base, but also
includes a schottky diode for head removal fault monitoring.
The schottky diode is used in some fire systems to ensure power is
maintained, in the event of an unauthorised detector head removal,
to other detectors further on the zone.
iii) STB-4SE base: Similar to UB-4 base, except deeper.
Section 5 - INSTALLATION
In normal use, the EVC-DP detector will be installed at ceiling level.
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. Connect the field wiring
to the base terminals, as detailed on page 6 making sure the wiring
does not obstruct fitting of the detector head. Fit the detector head
by inserting it into the base and turning clockwise until the notch in the
detector rim aligns with base locking screw. The OMNIVIEW™ 360º
indicator permits visibility from any angle.

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Fit the plastic dust cover supplied over the detector to keep out dust
etc, until the system is commissioned. If the dust cover is not fitted and
the environment is slightly dusty, such as when building work is being
completed, for example, problems of false alarms are likely to occur
after commissioning unless cleaning of the detector is undertaken.
At commissioning, the dust cover should be removed and discarded.
NOTE: THE PLASTIC DUST COVER MUST BE REMOVED FROM
THE DETECTOR IN ORDER FOR THE DETECTOR TO FUNCTION
CORRECTLY.
Section 6 - MAINTENANCE AND
CLEANING
Maintenance:
The EVC-DP detector is a high quality product engineered for reliability.
In order to obtain optimum performance, periodic maintenance is
required. If proper preventative maintenance is not carried out, there is
a likelihood of malfunction, as a dirty detector is more likely to cause a
false alarm.
Servicing:
Servicing of the system should be carried out in accord- ance with the
requirements of BS 5839 Part 1, Fire Detection and Alarm Systems for
Buildings: Code of Practice for System Design, Installation and Servicing.
The maintenance procedures described below should be conducted with
the following frequency:
One month after installation: Routine Inspection and every 3
months thereafter.
Every 6 months: Operational Test
Every 12 months: Functional Test and Cleaning.
All above frequencies of maintenance are dependent on
ambient conditions.

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Routine Inspection:
i) Ensure the detector head is secure and undamaged.
ii) Check the smoke entry apertures are in no way obstructed.
iii) Ensure the surface of the detector’s outer cover is clean. If there are
deposits due to the presence of oil vapour, dust etc, then the detector
should be cleaned in accordance with the cleaning instructions
detailed later in this manual. It may be advisable to ensure that such
cleaning is conducted regularly in the future.
iv) Ensure no equipment which may generate combustion products
or fine airborne particles, has been installed in the vicinity of the
detector since the last routine inspection. If such equipment has
been installed, then you should notify the Fire Safety Officer or other
competent authority that its presence may cause false alarms.
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 - Testifire’ smoke test head. Check that the
detector gives an alarm condition within 15 seconds. Check the
LED indicator on the EVC-DP 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.

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Functional Test:
The detector may be returned to Nittan Europe 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 Europe Ltd. for service.
Section 7 - SPECIFICATIONS
Model Reference: - EVC-DP
Computer Reference: - F02J82215
Detector Type: - Photoelectric smoke detector
Sensitivity - 7.6% Obscuration per metre
Supply Voltage: - 24V dc nominal
(range 16V to 32V)
Voltage Ripple: - 20% maximum
Alarm Characteristics: - 6V d.c. in series with
375R between
+(terminal 3) and
- (terminals 1,6) at 25ºC

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Monitoring Current: - 40μA max. at 24V d.c.
Alarm Current: - 50mA. max.
Charging Time: - 1 minute in clean air
Ambient
Temperature Range: - -10ºC to +55ºC
Standard: - EN54-7:2000
EMC Conformance: - BS EN50130-4:1996
(Immunity)
BS EN61000-6-3:2001
(Emissions)
Mass: - 118g (excluding base)
IP Rating: - 41
Section 8 - ENVIRONMENTAL
PARAMETERS
Temperature Considerations:
Over the range from -10ºC to +55ºC.
Humidity:
Relative Humidity of up to 95%, measured at 50ºC, non condensing.
Section 9 - 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)
In 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.

Technical Manual: EVC-DP 000025 (Changes are subject to DCRN)
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If +ve supply derived from zone
then RIL must be LED type
+
3
RIL
3
1 5
1 5
6 6EOL
Max. current through
_
5 = 2mA @ 24V d.c.
RIL must be 6V, 2mA max.
15mm
33mm
104mm
Section 10 - CONNECTIONS
Section 11 – DIMENSIONS
UB-4 base UB-4SD base
STB-4-SE base

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Section 12 - DISPOSAL
This symbol on the EVC-DP indicates that this product must not be disposed of
with household waste. Instead, it is your responsibility to dispose of your waste
equipment by handing it over to a designated collection point for the recycling
of waste electrical and electronic equipment. The separate collection and
recycling of your waste equipment at the time of disposal will help to conserve
natural resources and ensure that it is recycled in a manner that protects
human health and the environment. For more information about where you
can drop off your waste equipment for recycling, please contact your local
city office or your household waste disposal service.
Section 13 - ROHS COMPLIANCE
STATEMENT
(RoHS compliant and lead-free)
This product complies with the RoHS (Restriction of Hazardous Substances)
directive.
This product complies with the RoHS (Restriction of Hazardous Substances)
directive which restricts the use of six hazardous materials in the
manufacture of electronic and electrical equipment.
This product complies with the European Union RoHS (Restriction of
Hazardous Substances) directive 2002/95/EC which restricts the use of
the following six hazardous materials in the manufacture of electronic and
electrical equipment.
• Lead (Pb)
• Hexavalant Chromium
• Mercury (Hg)
• Cadmium (Cd)
• Polybrominated biphenyls (PBB’s)
• Polybrominated diphenyl ethers (PBDE’s)
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• evolution • EVC-DP • photoelectric smoke detector instuction manual