Gent Rate of Rise Heat Detector
| Part no. | 800271 |
|---|---|
| Brand | Gent |
| Range | Conventional ES Detect |
| Sub-range | Detector |
Image for illustration; item supplied may differ
At a glance
- Two heat response functionsA semiconductor sensor responds to rapid temperature rise and includes a fixed-temperature function for slower heat build-up.
- Heat class A1RClass A1R to EN 54-5:2000 + A1:2002.
- 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 25µA at 9V DC.
Description
The Gent 800271 is an ES Detect rate-of-rise heat detector for conventional fire alarm systems. Its semiconductor sensor responds to a rapid rise in temperature, with a fixed-temperature function for heat that builds more slowly. It has an A1R heat classification to EN 54-5 and an application range of -20°C to +50°C. 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 25µA at rest at 9V DC. It fits a separate base, including the 805590-D diode base. A 781814 remote LED can show the alarm away from the head.
The 800271 detects rapid temperature rises through a semiconductor sensor. Its integrated fixed-temperature function also responds when heat builds more slowly. It has an A1R classification to EN 54-5:2000 + A1:2002 and an application temperature range of -20°C to +50°C.
Read the full technical description
The 800271 detects rapid temperature rises through a semiconductor sensor. Its integrated fixed-temperature function also responds when heat builds more slowly. It has an A1R classification to EN 54-5:2000 + A1:2002 and an application temperature range of -20°C to +50°C.
The head operates from 8 to 42V DC through its detector base on the conventional zone circuit. Quiescent current is 25µA 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. A black ring on the light pipe identifies it as a heat detector.
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 type | Rate-of-rise heat detector |
|---|---|
| Detection principle | Rate-of-rise heat sensing with an integrated fixed-temperature function |
| Power source | Conventional detection zone through detector base |
| Operating voltage | 8-42V DC |
| Quiescent current | 25µA at 9V DC |
| Alarm current | 9mA at 9V DC |
| Application temperature | -20°C to +50°C |
| Storage temperature | -25°C to +75°C |
| Air velocity | 0-25.4m/s |
| Material | ABS |
| Colour | White, similar to RAL 9010 |
| Dimensions | 117mm diameter × 49mm high; 62mm high including base |
| Standard base | 805590 |
|---|---|
| Diode base | 805590-D |
| Remote alarm indicator | 781814, connected through the detector base |
| Local indication | Alarm indicator |
| Function check | Automatic |
| Data storage | Alarm and operating data |
| Supply contents | One detector head without base |
| Declared standard | EN 54-5:2000 + A1:2002 |
| Heat classification | A1R |
| Heat detector marking | Black ring on light pipe |
| Air humidity | Below 95% |
Specifications per manufacturer documentation, subject to change. E&OE.
Standards and approvals
| Standard | What it covers |
|---|---|
| EN 54-5:2000 + A1:2002 |
Approval body: VdS Schadenverhütung GmbH (notified body 0786).
Optional accessories
- 781814Remote LED for ES DetectRemote LED for ES Detect 781814£6.52ex VAT£7.82 inc VATIn stock
- 13270-08LBGent 8 Zone conventional panel, EN54 less batteriesThe ES Detect range is only approved to be installed with Xenex Control Panels - 13270-02L£339.66ex VAT£407.59 inc VATIn stock
- 13270-02LB2 Zone conventional panel, EN54 less batteriesThe ES Detect range is only approved to be installed with Xenex Control Panels - 13270-02L£196.14ex VAT£235.37 inc VATIn stock
FAQs
Does the 800271 also respond to slowly increasing heat?
Yes. The 800271 combines a rate-of-rise response with an integrated fixed-temperature function. The rate-of-rise response detects rapid temperature increases, while the fixed-temperature function covers heat that develops more slowly. It is the A1R heat model in the ES Detect range, with an application temperature range of -20°C to +50°C. The 800171 is the A1S fixed heat model, while the 800177 is the Class BS fixed heat model for applications up to +65°C. All use separate detector bases.
Which base does the 800271 use?
The 800271 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 800271 have a remote alarm indicator?
Yes. A 781814 remote LED can repeat the 800271 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 800271 powered and what current does it draw?
The 800271 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 25µA 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 800271?
The ES Detect range, including the 800271, 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.