Description
VIGIL voice alarm system power supplies employ switch mode techniques to improve efficiency and reduce unwanted heat dissipation and weight. They are CertMark certified to AS4428.16
Key Features
- The BVSMP has two individually protected outputs at 24V; the BVSMPLT has one.
- Each BVSMP will drive either two BV225, two BV125D, or two BV050Q.
- Each BVSMPLT will drive one BV225, one BV125D or one BV050Q.
- Provide independent power converters with current and overvoltage protection circuits.
- Continual monitoring of the charger and all DC outputs ensures reliability.
- Standby batteries are continually float charged by the unit. Ensuring that, in the event of mains failure, power is maintained.
- Built-in deep battery discharge cut off, preventing total discharge that can destroy the standby batteries in the event of AC power failure for long periods.
- A protected output is provided to power a mixer or auxiliary circuits.
- In the event of a fault condition an internal relay releases, providing a changeover contact. A fault will be indicated on the EVAS router.
- The constant voltage charger is set for the recommended float charge. Should the battery fall below this level the BVSMP will charge at a constant rate of three Amps, progressively reducing once the battery has achieved its nominal float level.
- Outputs, together with a volt-free (fault changeover) contact, are provided by a nine-way crimp connector plug and socket.
- Several chargers may be paralleled when used for larger systems. (Paralleled BVSMPs must be synchronised).
FRONT PANEL INDICATORS:
- AC supply healthy.
- Fuse failure.
- Charger failure.
- Battery voltage high.
- Battery voltage low.
- OK. (lamp test switch for the above indicators).
BATTERIES:
- We recommend (and supply) high-quality lead acid batteries. They are sealed, valve regulated and maintenance free. As standard our batteries are available rated at between between 35Ah and 150Ah. Larger standby systems can be provided and will be signed and calculated by our engineers. It is important that all voice alarm batteries comply with AS4428.16. The batteries activate when the mains has failed under emergency conditions.
MAINS ONLY:
- Switch mode power supplies without battery charging or monitoring facilities:
- BVSMPM – dual output.
- BVSMPMLT – single output.
