The Discovery UL Open-Area Sounder Visual Indicator is an alarm device made up of a sounder, visual indicator and short-circuit isolator. It is used to provide audible and visual warning of fire and is controlled by the fire control panel.
Key Features
- 15 evacuation tones + 15 secondary or alert tones
- Seven volume levels
- Alarm switching by individual device, of all devices on the loop
- Independent control of sounder and beacon
- Set-up and testing of devices at point of installation
- Isolator status information
- Sounder automatically silences after 20 minutes (optional)
- Class change bell tone
Technical Specification
| Operating voltage* | 17 V - 28 V dc* |
| Digital communication | Discovery, (XP95 and CoreProtocol compatible) |
| Supervisory current | < 750 µA |
| Switch-on surge current | < 2.6 mA for 1 second |
| Sounder operating | Variable |
| Temperature range | 32°F to 100°F (0ºC to 38ºC) |
| Humidity | 10% to 93% RH (no condensation or icing) |
| IP Rating | IP65 |
| Standards & approvals | UL, CSFM |
| Dimensions | 3.85 in. (98 mm) diameter x 4.09 in. (104 mm) height |
| Weight | 3.7 oz (105 g) |
| Materials | Red flame-retardant polycarbonate
Nickel plated stainless steel |
