Conventional Photoelectric Smoke Detector
All of the Sentek’s SD388 series detectors meet the requirements of UL268 and EN54-7/5 for use in fire alarm signaling systems. They are intended for use in 2-wire/4-wire Class A or B supervised zone circuits. The SD388 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72 standards, local codes, and ordinances.
The SD388 series include 2-wire and 4-wire detectors, which provide fast and reliable response for photoelectric smoke detection. While the smoke and heat detection circuits operate independently, their outputs being "OR' connected.
Feartures:
• 2 or 4 wire models
• Advanced detection and discrimination algorithms
• Easy installation and maintenance
• Sleek low-profile housing design
• Durable sensor head, no need for replacement
• SMD circuit board design-satisfactory quality and reliability guaranteed
• AR (Auto Reset) function for security systems (optional for 4 wire models) Sensor base option: standard and Shottky Diode
• Five-year limited warranty
The range includes:
SD388- 2 2 wire photoelectric smoke alarm
SD388- 2L 2 wire photoelectric smoke alarm with remote LED output
SD388- 4 4 wire photoelectric smoke alarm (12/24VDC)
SD388- 4B 4 wire photoelectric smoke alarm with Buzzer (12/24VDC)
SD388- 4AR 4 wire photoelectric smoke alarm with auto-reset function (12/24VDC)
SD388- 4ARB 4 wire photoelectric smoke alarm with auto-reset function and Buzzer (12/24VDC)
Notice: SD388-4 with 48Vdc available
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Smoke Sensitivity: |
0.08~0.14db/m(EN standard) or 0.98~2.40%/FT Obscuration (UL standard) |
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Ceiling Spacing: |
50 foot rating for heat sensor (55degree) |
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Reset Voltage: |
less than 1 volt |
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Reset Time: |
less than 1 second |
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Alarm Indicator: |
LED continuously emitting red light |
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Remote Output: |
25 mA max., diode gate |
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Temperature Range: |
-10°C to 50°C |
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Permissible Current: |
80mA maximum |
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Humidity: |
0 to 95% RH, no condensation or icing |
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Alarm Contact: |
(for 4-wire) NO or NC Operation, Form A: 1.0A@30VDC/0.5A@125VAC |
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Dimensions: |
102mm (dia) x 43mm (ht) with base |
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Weight: |
135g/set with base |
