Where the high-performance parts offer three intensities, the S4-711-V-VAD-LPR offers one. It is fixed at C-3-10, covering 235.6 cubic metres at 6 mA, which makes loop budgeting straightforward and rules the part out of anything mounted above 3 m.
Two source cautions. Gent prints the standard-power coverage in a table headed for the white device and footnoted as worst case for it, so these figures reach the red part second-hand. And the label marking against this number in the installation manual reads WVAD where the description alongside says red; we have left that marking off the page pending confirmation from Gent.
Technical data
| Sensing | Dual-angle optical, forward and backward scatter, plus heat |
| Intensity settings | One fixed setting |
| Analogue channels reported | 1, 2, 4, 5 |
| Strobe current, VAD alone | 6 mA, 210 mW |
| Total loop current with sounder | 10.5 mA turbo, 8 mA non-turbo |
| EN 54-23 coverage | C-3-10 at 235.6 m3, no Category O |
| Maximum mounting height | 3 m |
| Element standards | EN 54-7:2000 optical, EN 54-5:2000 heat, EN 54-3:2001 sounder, EN 54-23:2010 visual alarm |
Specifications from 4188-1073 issue 3.
Compatibility
The IP21 plate rule applies here as everywhere else in the visual alarm range: S4-701 as a kit, or S4-705 plates onto S4-700 bases. Because there is only one intensity, this part needs no Enhanced Loop Card to reach its rated coverage and behaves the same on a Nano loop as on a Vigilon Plus one. Step up to S4-711-V-VAD-HPR if higher mounting or wider spacing is needed.
Installation
Install as the high-performance variants, base and plate first. Beyond flash timing nothing about the strobe is adjustable, so the siting drawing does the work: 3 m maximum height, 10 m diameter.
Full details: S-Quad data and installation instructions — 4188-1073 issue 3 · 28 pages · the standard-performance coverage table and its own worst-case footnote
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