Gent Intrinsically Safe Optical Smoke Detector - Please use Base 805590.
| Part no. | 803371.EX |
|---|---|
| Brand | Gent |
| Range | Detector |

Image for illustration; item supplied may differ
Volume pricing
Bulk discount, applied automatically at checkout.
| Quantity | Unit price ex VAT |
|---|---|
| 1+ | £156.68 |
| 5+ | £151.20 |
| 25+ | £147.28 |
| 75+ | £144.93 |
Don't forget
- 805590Detector Base. Can be used for ES Conventional and Intrinsically safe detection.Detector base associated in the IS products listing£5.98ex VAT£7.18 inc VATIn stock
- 764744Z-System Zener Barrier for Intrinsically Safe DetectorsIntrinsically safe optical smoke detector requires the safety barrier for its ATEX II 2G category.£872.28ex VAT£1,046.74 inc VATIn stock
At a glance
- Intrinsically Safe Optical Detector803371.EX is an optical smoke sensor covering Intrinsically Safe Areas Detection within the IS range of sensors from Gent by Honeywell.
- ATEX Category II 2GThe ATEX category is II 2G, reached with the barrier Part No. 764744, and explosion protection is Ex ib IIC T4.
- Smoke Coverage And HeightMonitored area reaches max. 110 m², with mounting up to max. 12 m.
- Quiescent ConsumptionThe head sits at 50 μ A @ 19 V DC quiescent and accepts 8 V DC to 42 V DC.
- Safety Entity ValuesEntity values are Ui 21 V DC, Ii 252 mA, Io 10 mA and Ci 1 nF.
- Flashing Red LEDThe alarm indicator is a red LED, flashing.
- EN 54-7 SpecificationStandard specification is EN 54-7: 2006 with VdS approval G 204060 and CE certificate 0786 - CPD - 20104.
- Base And BarrierIt fits detector base Part No. 805590 and is used with the safety barrier Part No. 764744.
Description
For smoke detection inside a hazardous area, 803371.EX is the optical member of the IS range of sensors, an Ex ib IIC T4 device reaching ATEX category II 2G when used with the safety barrier Part No. 764744.
One head covers max. 110 m² and mounts as high as max. 12 m, and detector quantity on a zone stays at 8 or fewer. Supply may be 8 V DC to 42 V DC, quiescent draw is 50 μ A @ 19 V DC, and Ui 21 V DC, Ii 252 mA, Io 10 mA and Ci 1 nF define the intrinsic safety envelope.
Read the full technical description
Bodywork is ABS, coloured white (similar to RAL 9010), at approx. 110 g; with base the outline is Ø 117 mm, H = 62 mm, and IP 43 is met with the base and optional base gasket in place. The galvanic isolator, Part No. 17740-30, must sit as close to the monitored Ex zone (Zone 1) as possible, ideally inside the housing of a Vigilon Mains powered Interface, either S4-34440-02 or S4-34440-12.
803371.EX is an optical smoke detector built for Intrinsically Safe Areas Detection inside the IS range of sensors from Gent by Honeywell. Explosion protection is Ex ib IIC T4; ATEX category II 2G is reached when the barrier Part No. 764744 is fitted, and examination is covered by TÜV 09 ATEX 554910.
Smoke sensing spans a monitored area of max. 110 m² from a mounting height of max. 12 m. The head draws a quiescent current of 50 μ A @ 19 V DC, works over 8 V DC to 42 V DC while its entity values are Ui 21 V DC, Ii 252 mA, Io 10 mA and Ci 1 nF.
Its ambient temperature is -20 °C to +70 °C, alongside the ATEX range value - 20 °C to + 70 °C; storage runs -25 °C to +75 °C, humidity ≤ 95% relative, non-condensing. Air velocity of 0 to 5.000 ft/min. is accepted, and alarm shows on a red LED, flashing.
The head fits detector base Part No. 805590, and Vigilon system compatibility comes from testing of the Ex sensors and isolators in this range. No more than 8 detectors are permitted on one zone. Standard specification is EN 54-7: 2006, with VdS approval G 204060 and CE certificate 0786 - CPD - 20104.
Specifications
| Operating voltage | 8 V DC to 42 V DC |
|---|---|
| Sensor type | Smoke (Optical) |
| Ambient temperature | -20 °C to +70 °C * 3 |
| Alarm indicator | red LED, flashing |
| IP rating | IP 43 (with base + optional base gasket) |
| Housing | ABS |
| Colour | White (similar to RAL 9010) |
| Weight | approx. 110 g |
| Dimensions (with base) | Ø 117 mm, H = 62 mm |
|---|---|
| Ambient humidity | ≤ 95% relative, (non-condensing) |
| Storage temperature | -25 °C to +75 °C |
| EN54 standard | EN 54-7 : 2006 |
| VdS approval | G 204060 |
| CE certificate | 0786 - CPD - 20104 |
| Ex-protection | Ex ib IIC T4 Gb |
Specifications per manufacturer documentation, subject to change. E&OE.
Documents
| Document | Type | Size | Download |
|---|---|---|---|
| Installation manual (803371, 803371.EX, 803374, 803374.EX) | Installation | 447 KB | Download PDF |
| S4 mains-powered interface, data and installation (4188-968 issue 11) | Installation | 2.5 MB | Download PDF |
Guides
Optional accessories
- 764746Z-System Zener Barrier for AV Device (Drives One Sounder or Two Strobes)Listed in the Intrinsically Safe and relay products table alongside Z969 Zener Barrier for£626.75ex VAT£752.10 inc VAT
- 803271.EXIntrinsically Safe Heat Detector (Rate of Rise) - Please use Base 805590.Part of the same IS detector family as 803271.EX Rate-of-rise heat detector and 803374.EX£135.15ex VAT£162.18 inc VATIn stock
- 803374.EXIntrinsically Safe Dual Angle Optical Heat Detector - Please use Base 805590.Part of the same IS detector family as 803271.EX Rate-of-rise heat detector and 803374.EX£168.04ex VAT£201.65 inc VATIn stock
- 803271Heat Sensor Rate of RisePart of the same IS detector family as 803271.EX Rate-of-rise heat detector and 803374.EX£53.82ex VAT£64.58 inc VATIn stock
- 803374Dual Optical Heat Smoke SensorPart of the same IS detector family as 803271.EX Rate-of-rise heat detector and 803374.EX£86.72ex VAT£104.06 inc VATIn stock
- 19104-52Relay 24V DC Base & Diodecompatible / works with: Relay 24V DC Base & Diode£46.05ex VAT£55.26 inc VATIn stock
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