Gent S4 Dual Optical Heat Sensor Voice Sounder Standard Power red VAD
| Part no. | S4-711-V-VAD-LPR |
|---|---|
| Brand | Gent |
| Range | S4 Detectors |
| Sub-range | Detectors with Voice Sounder & VAD |
Image for illustration; item supplied may differ
At a glance
- Dual optical detection and heatForward and backward optical sensing combine with heat detection in one head.
- Standard Power red visual alarmCeiling coverage is C-3-10 at the fixed Low setting.
- Voice and attention tonesStored speech follows an attention tone; speech circuit checks run without audible test signals.
- Low setting on NanoNano operates this VAD at Low, with C-3-10 ceiling coverage.
- Synchronisation within one panelVoice sounder and VAD outputs synchronise across its loops; synchronisation does not cross a panel network.
- IP21C mountingUse the S4-701 base and IP seal plate for IP21C.
Description
The Gent S4-711-V-VAD-LPR is an S-Quad dual optical and heat sensor with a voice sounder and a red Standard Power VAD for Vigilon Plus, Compact Plus and Nano. Its fixed visual alarm setting gives C-3-10 ceiling coverage. It replaces the S4-711-ST-VO. It takes power from the loop and has a built-in short-circuit isolator. Stored voice messages give spoken warnings alongside the light. Use the S4-701 base and IP seal plate for IP21C. By default, the light flashes once every two seconds. Across the S-Quad range, the head is 117 mm in diameter and 49.6 mm high. A red LED gives a fire indication at the device.
S4-711-V-VAD-LPR combines forward and backward optical smoke sensing with heat. The panel selects the detection state. States 2, 6, 11 and 12 do not meet EN 54-7; the selected state must match the required smoke and heat response.
Read the full technical description
S4-711-V-VAD-LPR combines forward and backward optical smoke sensing with heat. The panel selects the detection state. States 2, 6, 11 and 12 do not meet EN 54-7; the selected state must match the required smoke and heat response.
Four English speech messages cover emergency evacuation, an incident alert, a system test and fire evacuation, with a bell tone available as well. Audio storage is up to 20 seconds, with additional local attention tones. Speech follows an attention tone, and pauses before and after the message can be programmed. Fault monitoring checks the speech circuit without playing a test sound.
The Standard Power red VAD has one fixed Low setting, rated C-3-10: a cylindrical coverage volume up to 3 m high and 10 m in diameter, totalling 235.6 m³. It operates at the same Low setting on Nano. Use the two-second flash interval for EN 54-23 operation.
Supplied with one sensor head and one blue protective dust cover. The mounting base and IP21 mounting plate are not included. Fit the S4-701 base with its IP seal plate to achieve IP21C. S-Quad VAD installations require an IP21 mounting plate for EN 54-23 operation. The voice sounder and visual alarm synchronise across all loops of the same panel. Synchronisation does not extend across a network of panels.
For Vigilon Plus and Compact Plus VAD coverage, use MCC/MCB software v4.52 or later and LPC software v4.48 or later. Use Vigilon Commissioning Tool v1.32 or later for device setting changes. Nano configuration uses Nano Commissioning Tool v3.0 or later. Verify the system design with the Gent Battery Standby and Loop Load calculator.
Specifications
| Sensor type | Dual optical and heat |
|---|---|
| Power source | Loop powered |
| Loop isolator | Built-in short-circuit isolator |
| Panel families (S-Quad) | Vigilon Plus, Compact Plus and Nano |
| Operating voltage (S-Quad) | 35-48 V |
| Enclosure (S-Quad) | ABS |
| Body colour (S-Quad white models) | White, RAL 9010 |
| Head dimensions (S-Quad) | 117 mm diameter × 49.6 mm height |
| Operating temperature (S-Quad) | -10°C to +50°C |
| Storage temperature (S-Quad) | -20°C to +70°C |
| Relative humidity (S-Quad) | 95%, non-condensing, at +5°C to +45°C |
| Mounting base | S4-701 with IP seal plate |
| Voice output | Stored speech and attention tones |
|---|---|
| VAD light colour | Red |
| VAD power class | Standard Power |
| IP rating | IP21C with S4-701 base and IP seal plate |
| VAD flash interval | 2 seconds (0.5 Hz), EN 54-23 setting |
| VAD ceiling coverage | C-3-10; 235.6 m³ |
| VAD power setting | Fixed Low |
| VAD-only current maximum (LPR class) | 6 mA at Low |
| Audio storage | Up to 20 seconds; additional local attention tones |
| Factory audio | Four English speech messages and a bell tone |
| Gent range datasheet: loop maxima | Standard Power: up to 100; guidance only, dependent on loop load; verify with Vigilon loop load calculator |
| Replaces | S4-711-ST-VO |
Specifications per manufacturer documentation, subject to change. E&OE.
Standards and approvals
| Standard | What it covers |
|---|---|
| LPCB approved | Approved by the Loss Prevention Certification Board for fire detection and alarm system products. |
| EN 54-3 | |
| EN 54-5 | |
| EN 54-7 | |
| EN 54-17 | |
| EN 54-18 | |
| EN 54-23 | |
| LPCB ref 042bu/09 |
Documents
| Document | Type | Size | Download |
|---|---|---|---|
| s quad sensor and sensor sounder vad brochure data sheet | Datasheet | 453 KB | Download PDF |
| Gent 4188-1073 issue 7 - S-Quad data and installation (white and black) | Installation | 7.2 MB | Download PDF |
Optional accessories
- S4-FLUSHS-Quad Semi-Flush Mounting Kit£28.23ex VAT£33.88 inc VATIn stock
- 805580S-Quad Removal Tool Kit£327.18ex VAT£392.62 inc VATIn stock
Spares & replacement parts
- 805589STDust cover to support S4, S4T and S4M device mouldings.£37.95ex VAT£45.54 inc VATIn stock
FAQs
What visual alarm coverage does S4-711-V-VAD-LPR provide?
The S4-711-V-VAD-LPR has a fixed Standard Power red VAD rated C-3-10. That means ceiling mounting up to 3 m high and a cylindrical coverage diameter of 10 m, with a volume of 235.6 m³. The light uses its single Low setting on Vigilon Plus, Compact Plus and Nano. There is no Medium or High selection on this model. Keep the flash interval at two seconds and fit the S4-701 base with its IP seal plate.
Which voice messages are available on S4-711-V-VAD-LPR?
The S4-711-V-VAD-LPR has four factory English speech messages and a bell tone. The spoken choices cover emergency evacuation, an incident alert asking occupants to wait, a test requiring no action, and fire evacuation. An attention tone precedes each speech message. Audio storage is up to 20 seconds, with additional local attention tones. The pauses before and after speech can be programmed, and factory speech can be replaced with custom messages. Silent monitoring checks the speech function for failure.
How does S4-711-V-VAD-LPR operate on Nano?
The S4-711-V-VAD-LPR works on a Nano loop, where its VAD is fixed at Low. Its ceiling coverage on Nano is C-3-10. This is the same fixed setting used by the Standard Power model on the other supported panel families. Its sensing and voice functions remain part of the device. Configure the Nano system with Nano Commissioning Tool v3.0 or later. Use the S4-701 base and IP seal plate, and keep the visual alarm flash interval at two seconds.
Which panel software and tools are needed for S4-711-V-VAD-LPR?
For S4-711-V-VAD-LPR on Vigilon Plus and Compact Plus, EN 54-23 coverage needs MCC/MCB software v4.52 or later and LPC software v4.48 or later. Use Vigilon Commissioning Tool v1.32 or later for setting changes. Nano configuration uses Nano Commissioning Tool v3.0 or later, and its VAD setting is fixed at Low. Use the two-second flash interval for EN 54-23 operation. Verify the complete system design with the Gent Battery Standby and Loop Load calculator.
How are S4-711-V-VAD-LPR alarm outputs set up and synchronised?
The S4-711-V-VAD-LPR voice sounder and VAD outputs synchronise with compatible devices across all loops belonging to the same panel. Synchronisation does not extend across a network of panels. The red VAD uses a two-second flash interval for EN 54-23 operation. The sounder provides speech preceded by an attention tone, as well as tone signals. On Nano, this VAD operates at Low with C-3-10 ceiling coverage. Fit the S4-701 base and IP seal plate for IP21C.
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