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Part Number or the Week S3EP-V-VAD-HPR-R

Gent Optical Smoke Detector

Part no.800371
BrandGent
RangeConventional ES Detect
Sub-rangeDetector
ES 800371 Optical Smoke Detector — white circular device with central sensor and black concentric rings

Image for illustration; item supplied may differ

At a glance

  • Scattered-light smoke sensingOptical smoke detection with automatic adaptation to changes in the environment.
  • Optical detector standardEN 54-7:2000 + A1:2002 + A2:2006.
  • Automatic function checkThe detector checks its own function and retains alarm and operating data.
  • Local and remote alarm indicationLocal alarm indication is built in; a 781814 remote LED connects through the detector base.
  • Separate base mountingFits the 805590 standard base or 805590-D diode base; the detector is supplied without a base.
  • Conventional circuit supplyOperates from 8 to 42V DC, with a quiescent current of 30µA at 9V DC.

Description

The Gent 800371 is an ES Detect optical smoke detector for conventional fire alarm systems. It senses smoke using scattered light and adjusts to changes in its environment. The head has an alarm indicator, checks its own function and stores alarm and operating data. It runs from 8 to 42V DC and takes 30µA at rest at 9V DC, with an application temperature range of -20°C to +72°C. It fits a separate detector base, including the 805590-D diode base, and can use a 781814 remote LED to show the alarm away from the head. The white ABS body is 117mm across and 49mm high without a base.

The 800371 detects smoke by scattered light and automatically adapts to changes in its environment. It meets EN 54-7:2000 + A1:2002 + A2:2006 and has an application temperature range of -20°C to +72°C.

Read the full technical description

The 800371 detects smoke by scattered light and automatically adapts to changes in its environment. It meets EN 54-7:2000 + A1:2002 + A2:2006 and has an application temperature range of -20°C to +72°C.

The head operates from 8 to 42V DC through its detector base on the conventional zone circuit. Quiescent current is 30µA at 9V DC and alarm current is 9mA at 9V DC. It checks its own function, provides local alarm indication and stores alarm and operating data.

The detector is supplied without a base. The 805590 is the standard base and the 805590-D is the diode base. With the 805590-D, a 781814 remote LED connects at the base to repeat the alarm at another position. The diode base maintains zone continuity when a detector head is removed.

The white ABS head measures 117mm in diameter and 49mm high, rising to 62mm including its base. Storage temperature is -25°C to +75°C and the air velocity range is 0 to 25.4m/s.

The ES Detect range connects to Xenex conventional panels and to conventional zones on the S4-34410 or channel 1 of the S4-34450 in a Vigilon system. Mains interface applications use S4-34440-02 or S4-34440-12 units manufactured after 25 May 2017.

Specifications

Device typeOptical smoke detector
Detection principleOptical smoke detection using scattered light
Power sourceConventional detection zone through detector base
Operating voltage8-42V DC
Quiescent current30µA at 9V DC
Alarm current9mA at 9V DC
Application temperature-20°C to +72°C
Storage temperature-25°C to +75°C
Air velocity0-25.4m/s
MaterialABS
ColourWhite, similar to RAL 9010
Dimensions117mm diameter × 49mm high; 62mm high including base
Standard base805590
Diode base805590-D
Remote alarm indicator781814, connected through the detector base
Local indicationAlarm indicator
Function checkAutomatic
Data storageAlarm and operating data
Supply contentsOne detector head without base
Declared standardEN 54-7:2000 + A1:2002 + A2:2006
Environmental adaptationAutomatic
Air humidityBelow 95%

Specifications per manufacturer documentation, subject to change. E&OE.

Standards and approvals

StandardWhat it covers
EN 54-7:2000 + A1:2002 + A2:2006

Approval body: VdS Schadenverhütung GmbH (notified body 0786).

Optional accessories

FAQs

How does the 800371 differ from the ES Detect heat detectors?

The 800371 senses smoke by scattered light and automatically adapts to changes in its environment. The 800171 and 800177 sense fixed-temperature heat, while the 800271 combines rate-of-rise and fixed-temperature heat functions. The optical head takes 30µA at rest at 9V DC; each of those heat heads takes 25µA at the same voltage. All four fit the 805590-D diode base and can use the 781814 remote LED. The required detection method determines which head is used.

Which base does the 800371 use?

The 800371 is supplied as a detector head without a base. It fits the 805590 standard base and the 805590-D diode base. The diode base maintains the zone circuit through the mounting point when the head is removed. It also provides the connection for a 781814 remote alarm LED. With its base, the detector is 62mm high and 117mm in diameter. On a Xenex zone, the circuit limit is up to 20 diode bases.

Can the 800371 have a remote alarm indicator?

Yes. A 781814 remote LED can repeat the 800371 alarm at a separate position. With the 805590-D base, the indicator connects through two wires: X1 positive goes to LED EP6 and X1 negative goes to EM2. The detector also retains its own local alarm indication. The remote unit has a red lens and three red LEDs, while the detector and its base remain on the conventional zone circuit. Remote indication is an optional accessory to the detector installation.

How is the 800371 powered and what current does it draw?

The 800371 takes its supply through its base from the conventional detection zone. Its operating range is 8 to 42V DC. At 9V DC, the head draws 30µA in its quiescent state and 9mA in alarm. These are the detector head currents at that voltage. The base provides the zone connections and can also connect a 781814 remote alarm LED. The detector includes an automatic function check, a local alarm indicator and storage for alarm and operating data.

Which Gent systems support the ES Detect range that includes the 800371?

The ES Detect range, including the 800371, connects to Xenex conventional panels. On Vigilon systems, conventional zones can connect through the S4-34410 or channel 1 of the S4-34450. The S4-34440-02 and S4-34440-12 mains interfaces support ES Detect with manufacture dates after 25 May 2017. The detector fits its own conventional base on that zone circuit. The 805590-D is the diode base option, and the 781814 is the optional remote alarm indicator connected through the base.