Ningbo SD-602 Reference manual

MANUAL FOR PHOTOELECTRIC SMOKE DETECTOR
PRODUCT INTRODUCTION
This product named Photoelectric smoke detector (hereinafter
called detector) detects the smoke by a couple of infrared diodes.
The principle of detecting is granule in the smoke can reflect
infrared light. Infrared diodes are placed in the special chamber.
The chamber can shield external light, but doesn’t affect the smoke
into it. While there is no smoke, the diode can receive very weak
infrared light. When the smoke entering the chamber, diode can
receive more and more light, and the detector can give out alarm
signal when the smoke attains the certain density. In order to
reduce the interference and lower power consumption, the emitting
circuit adopts the pulse signal. The product in accordance with the
networking approach is divided into 2-wire and 4-wire detectors.
PRODUCT FEATURE
● STRONG ADAPT ABILITY FOR CIRCUMSTANCE
● SMT DESIGN, HIGH STABILITY
● 9-35VDC WIDE VOLTAGE
● METAL SHIELD, ANTI-RFI & ANTI-EMI
● LOW STANDBY CURRENT
● POWER SUPPLY NON-POLARIZED INPUT
● FLASHING LED POWER INDICATOR
● ALARM RELAY N.C./N.O.OPTIONAL (4 WIRE)
● REMOTE LED INDICATOR OUTPUT (2 WIRE)
TECHNICAL SPECIFICATION
PRODUCT CATEGORY 2 WIRE 4 WIRE
OPERATING VOLTAGE DC 9V~35V
STANDBY CURRENT 55uA
100 uA (relay NO)
12 mA (relay NC)
ALARM CURRENT
20-25 mA @12V
40-50 mA @24V
12-16 mA(relay NO)
3-5 mA (relay NC)
ALARM INDICATION RED LED ON
TEMPERATURE RANGE
-10℃~+50℃
HUMIDITY 0%~95%RH (NO CONDENSATION)
ALARM OUTPUT REMOTE LED RELAY OUTPUT
CONTACT RATING N/A 0.5A@DC28V
SENSITIVITY 0.15dB/m (+/-0.03dB/m)
STANDARD EN54-7,UL268
DIMENSION 100mm diameter*46mm deep

INSTALLATION
1. Connect the wires to the mounting base.
2. Select a proper place (normally mounted on the center of
ceiling). Fix the mounting base and then put the detector into
the base and twist to fasten it.
CONNECTION DESCRIPTION
1. 2 wire smoke detectors: base terminals “1” and “2” for DC power
input, non-polarized. When remote indicator is used, “1” in must be
connected to the positive line in. “4” for DC power positive output.
“3” for remote indicator cathode.
2. 4 wire smoke detectors: base terminals “1” and “2” for DC power
input, non-polarized. “3” for relay output N.C. or N.O., “4” for relay
output com.
WIRE DIAGRAM
2 WIRE BASE TERMINALS
2. POWER (-) INPUT 3. REMOTE LED OUTPUT
1. POWER (+) INPUT 4. POWER (+) OUTPUT
4 WIRE BASE TERMINALS
2. POWER (-) INPUT 3. RELAY OUTPUT (N.O.)
1. POWER (+) INPUT 4. RELAY OUTPUT (COM)
NOTICE
1.The detector can’t be installed under worse environment.
E.g.: coldest, hottest, dusty, do not move away the dustproof
cover until use the detector indeed.
2. Make sure that there is no block within 0.5m from detector.
3. Keep the distance between detector and wall more than 0.5m.
4. Make sure the distance between detectors be less than 15m. And
the distance between detector and corner must be less than half
of the one between detectors.
5. Horizontally install the detector. If have to be installed
slantingly, please keep the angle less than 45 degrees.
6. Base be installed solid, wire connection must be reliable.
7. Recommendations should be carried out every six months a
simulated fire test, the test detectors are working properly.
8. For various reason, including, but not limited to changes in
environmental conditions, electric disruptions and tampering,
the product may not perform as expected. The user is advised
to take all necessary precautions for his/her safety and the
protection of his/her property.