System Sensor 2351E Installations- Und Wartungsanleitung

B401x
47mm
70°C
-30°C
105 g
Figure 1: Base Terminal Wiring
V-
2
3
-
1
+
4
5
R
V+
Figure 2: Tamper Resist Feature
PLASTIC LEVER
TO REMOVE, USE A SMALL
SCREWDRIVER TO PUSH
PLASTIC IN THE DIRECTION
OF THE ARROW, WHILST
ROTATING THE SENSOR
ANTI-CLOCKWISE
DETECTOR
COVER
0832 05
DoP Ref:
0832-CPD-0059
2351E
SCREEN
Pittway Tecnologica
S.r.l,
Via Caboto 19/3,
SENSING
34147 Trieste, Italy
CHAMBER
ENGLISH
INSTALLATION AND MAINTENANCE INSTRUCTIONS
GENERAL DESCRIPTION
Model 2351E photo-electronic smoke sensors use state-of-the-art optical sensing
chambers. The ability to plug these sensors into a variety of base options extends panel
compatibility and application flexibility. These sensors are designed to provide open
area protection and are only to be used with compatible control panels.
A bicolour LED on each sensor lights red to provide a local visible alarm indication, flashes
yellow to indicate a chamber fault or drift compensation limit reached, and may also be
set to flash green to indicate correct operation of the sensor. Remote LED annunciator
capability is available as an optional accessory wired to the standard base terminals.
These sensors also have a latching alarm feature. The alarm can be reset only by a
momentary power interruption.
Three sensitivity settings are available on the 2351E: high, medium and low. These
sensitivities are set using a dedicated tool available from System Sensor. This tool may
also be used to access operating data from the sensor.
D300-01-01
2351E
102 mm
V-
SHORTING
SPRING
NOTE: WHEN A BASE FITTED WITH A
RESISTOR (R) - BETWEEN TERMINALS
4 AND 5 - IS USED, THE WIRING SHOULD
FOLLOW THE DASHED LINE.
A SCHOTTKY DIODE
CONNECTED BETWEEN
TERMINALS 2 AND 3 DOES
NOT AFFECT BASE WIRING.
V+
TO ACTIVATE, BREAK TAB ON PLASTIC
LEVER AT DOTTED LINE BY TWISTING
TOWARD CENTRE OF BASE
Figure 3: 2351E Optical Smoke Detector
Pittway Tecnologica S.r.l. Via Caboto 19/3, 34147 TRIESTE, Italy
SPECIFICATIONS
Supply voltage
Air velocity
Humidity
Quiescent current
Maximum alarm current
Latching alarm
This sensor has been independently tested and certified to EN54-7.
Note: Do not install in locations where the normal ambient temperature range extends
beyond 0°C to 50°C for extended periods, particularly if icing or condensation may
be expected.
BASE MOUNTING AND WIRING INSTRUCTIONS
Verify that the sensor base supplied is compatible with the system control panel.
400 series bases may be mounted to standard electrical junction boxes with 50-60 mm
centre fixings.
See figure 1 for terminal connections on standard bases. If relay bases are to be used,
please refer to the relevant base instructions.
Notes:
1. Series 300 sensors are polarity conscious, and must be wired as indicated.
2. Do not loop wire under terminals: break the wire run to ensure supervision of
connections.
3. All wiring must conform to applicable local and national codes and regulations.
Each 400 series base is fitted with a shorting spring, which may be used to connect across
terminals 2 and 3 to permit loop wiring to be checked before installation of sensor heads.
This spring automatically disengages when the sensor is fitted into the base.
Remove power from sensor monitoring circuits before installing sensors.
SENSOR INSTALLATION
1. Insert the sensor into the base and rotate it clockwise until it locks into place.
2. After all sensors have been installed, apply power to the sensor monitoring circuits.
3. Test the sensor as described under TESTING.
4. Reset the sensor at the system control panel.
Tamper-resistance
The sensor bases include a feature that, when activated, prevents removal of the sensor
without the use of a tool. See figure 2 for details.
Dust covers are fitted to the sensors to help protect units during shipment and
when first installed. They are not intended to provide complete protection
against contamination; therefore sensors should be removed before beginning
construction, major re-decoration or other dust producing activity. Dust covers
must be removed before the system can be made operational.
TESTING
Sensors must be tested after installation and following periodic maintenance. Disable the
zone or system undergoing maintenance to prevent unwanted alarms. Test the sensor
as follows:
Smoke method
1. Using generated smoke, or synthetic smoke aerosol from an approved manufacturer
such as No Climb Products Ltd, subject the sensor to controlled amounts of smoke
in accordance with local codes of practice and manufacturer recommendations.
2. The red LED on the sensor should latch into alarm within 40 seconds, and the control
panel should activate into alarm.
Laser test tool method (model no. S300RTU)
Note: this method does not carry out a complete functional test of the sensor.
1. Align the flashing red spot produced by the laser beam with the LED on the sensor.
2. Provided the sensor has not reached its drift compensation limit, it should latch into
alarm within a few seconds, and the control panel should activate into alarm.
The S300RTU test tool is a Class II laser product. Do not direct the beam towards
a person's face or eyes
After completion of all tests notify the proper authorities that the fire system is operational.
MAINTENANCE
Before cleaning, disable the system to prevent unwanted alarms.
1. Remove the sensor to be cleaned from the system.
2. Gently release the 4 cover removal tabs that secure the cover in place by inserting
a small screwdriver into the recess, and gently levering outwards, and remove the
sensor cover.
3. Vacuum the outside of the screen carefully without removing it.
4. Carefully remove the screen from the sensing chamber.
5. Use a vacuum cleaner and/or clean, compressed air to remove dust and debris from
the sensing chamber and the inside of the screen.
6. Re-install the screen by aligning the arrow moulded on it with the arrow on the
sensing chamber. Slide the screen over the chamber, applying gentle pressure to
secure it in place.
7. Reinstall the sensor cover. Align the LED with the cover assembly and snap the cover
into place, ensuring that all the cover removal tabs are correctly engaged.
8. When all the sensors have been cleaned, restore power to the circuit and test the
sensor as described in TESTING above.
WARNING - LIMITATIONS OF SMOKE SENSORS
Smoke sensors must be used in conjunction with compatible equipment.
Smoke sensors will not sense fires which start where smoke does not reach the sensors.
A sensor may not detect a fire developing on another level of a building.
Smoke sensors also have sensing limitations. Consideration must be made of the
environment when selecting fire sensors.
Smoke sensors cannot last forever. Smoke sensors contain electronic parts. Even
though sensors are made to last over 10 years, any of these parts could fail at any time.
Therefore, test your smoke detection system at least semi-annually. Clean and take
care of your smoke sensors regularly. Taking care of the fire detection system you have
installed will significantly reduce your product liability risks.
8 - 30VDC
20m/s (4000 ft/min)
5 - 95%RH (non-condensing)
50µA Typical
80mA (Limited by panel or base resistance)
Reset by momentary power interruption.
WARNING
CAUTION
CAUTION
I56-1718-020