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SD388 Easy to Install 4 Wire Conventional Smoke and Heat Detector Explosion Proof

• 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

  • SD-388
  • Sentek


SD388 Series

Conventional Photoelectric Smoke Alarm

All  of  the  Sentek’s  SD388  series  detectors  meet  the  requirements  of UL268 and UL521( ordinary) and EN54-7 and EN54-5( A2S) 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.

Product Features

• 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


Product  Specification


Model  

2/4 wire

Thermal

Voltage DC

Standby

Current

(Max.)

Alarm

Current

12/24V


Surge

Current

(Max.)

Star-Up

Time

(Max.)

Permissible

Current

(Max.)

Frequency  Alarm contact Base model

SD388-2  

2

—  10〜33V   40μA   50mA       80μA     30S 80mA   1~3 Seconds     P/N762001

SD388-2L   

2

—  10〜33V  40μA    50mA        80μA     30S 80mA   1~3 Seconds   P/N764001

SD388-4  

 4  

—  12/24 V    40μA   30/40mA   80μA      30S 1~3 Seconds    Form A P/N764001

SD388-4AR 

4

—   12/24 V    40μA   30/40mA   80μA    30S 1~3 Seconds      Form A /Auto Reset P/N764001

SD388-4B    

4

—  12/24 V    40μA   30/40mA       80μA     30S 1~3 Seconds   Form A   P/N764001

SD388-4ARB     

4

—  12/24 V   40μA   30/40mA     80μA      30S 1~3 Seconds    Form A /Auto Reset  P/N764001



Product Data


Smoke Sensitivity

0.08~0.14db/m(EN standard) or 0.98~2.40%/FT Obscuration (UL standard)

Reset Voltage

less than 1 volt

Reset Time

less than 1 second

Alarm Indicator

LED continuously emitting red light

Remote Output

25 mA max., diode gate

Operating Temperature

-10°C to 50°C

Permissible Current

80mA maximum

Humidity

0 to 95% RH, no condensation or icing

Alarm Contact

(for 4-wire) NO or NC Operation, Form A: 1.0A@30VDC/0.5A@125VAC

Dimensions

102mm (dia) x 43mm (ht) with base

Weight

135g/set with base


Certificate


证书


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CONTACT US

 +86 574 87155635, 87153117

 # 8108 or 8817

 +86 180-5855-7012

sales@sentek.cc , service@sentek.cc

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