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Brand Name: ZOANCO
Sensor: photoelectric
Size: 103x55mm
ITEM: 4-wire smoke detector with relay
power: 9 to 28 VDC Volts Non-polarized
Model Number: YT142
Place of Origin: China (Mainland)
Operating Voltage Range: 9 to 28 VDC Volts Non-polarized
Alarm Relay Contact Ratings: 1A@ 24V DC
Smoke Alarm Sensitivity: 0.15-0.3 dB/m(with smoke sensor)
Sounder: >80dB.(Optional)

Specifications

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1. GENERAL DESCRIPTION

the detectors are photo-electronic detector uses a state of-the-art
Optical sensing chamber. this detector is designed to provide open
Area protection and to be used with most security alarm control
Panel.
Two LEDs on each detector provide local 360 visible alarm.Indication. They flash every six seconds indicating that power is
Applied and the detector is working properly. the LEDs latch on in.Alarm. LEDs will be off when a trouble condition exists indicating
that the detector sensitivity is outside the listed limit. the alarm can.Be reset only by a momentary power interruption.
the detector that initiated the alarm condition will have its red LED.and relays latched until reset by panel.
Heat detector and smoke & heat detector combine a photo.Electronic sensing chamber and a temperature heat detector.
2. SPECIFICATIONS
Operating Voltage Range: 9 to 28 VDC Volts Non-polarized
Standby Current: 200A
Maximum Alarm Current (LED on): 45mA
Alarm Relay Contact Ratings: 2A@ 24V DC
Operating Humidity Range: 95%RH(40C2C) Relative Humidity, Non-condensing
Operating Temperature Range:  -10C to 50C (14F to 122F)
Smoke Alarm Sensitivity: 1.06.26%FT
Temperature Alarm Sensitivity: 57C (135F) A1R (only for with heat sensor)
Height: 55 mm installed in Base
Diameter:  103 mm
3.WARNING
to  PREVENT  DETECTOR  CONTAMINATION  and.SUBSEQUENT WARRANTY CANCELLATION, the SMOKE
DETECTOR MUST REMAIN COVERED UNTIL the AREA IS.CLEAN and DUST FREE.
4. INSTALLATION
NOTE: All wiring must conform to applicable local codes,Ordinances, and regulations.
INSTALL the DETECTOR BASE
4.1. Open area smoke or heat detectors are intended for Mounting on a ceiling or a wall in accordance with the fire
Standard in your country.
4.2. Attach mounting base to ceiling or wall. the base of the detector can be mounted directly onto an electrical
Junction box such as an octagonal (75mm, 90mm or 100mm), a round (75mm), or a square (100mm) box
without using any type of mechanical adapter.
4.3. Position all wires flat against terminals, and fasten the Wires on the terminals, See Figure 1.
5. Terminals function description:
Terminal 1: Relay Output -COM
Terminal 2: Relay Output NO/NC (default NO)
Terminal 3: DC Power
Terminal 4: DC Power +
4Wire Smoke Detector with Relay Output