What does supervisory mean on a fire alarm?
Supervisory – A supervisory condition means there is an issue with a system, process, or equipment that is monitored by the fire alarm control unit (see supervision section). An example of this would be a sprinkler system valve being closed, this would show up as a supervisory signal on the control unit.
What is the difference between a supervisory signal and an alarm signal?
Supervisory: This fire alarm signal type is related to the supervision of certain field components. As an example the opening and the closing of the Sprinkler valve. Trouble: This fire alarm signal is typical of a device malfunctions.
What are supervisory signal devices?
Per NFPA definition, a supervisory signal initiating device is “an initiating device such as a valve supervisory switch, water level indicator, or low air pressure switch on a dry-pipe sprinkler system in which the change of state signals an off-normal condition and its restoration to normal of a fire protection or …
What is a supervisory zone?
Zones are typically designed to enable someone to easily identify an area where the supervisory is located, for example, you may have all of the valve supervisory switches for one system on its own zone so the supervisory comes up as “supervisory wet pipe system 1”.
What are the three types of specialty signals fire detection and alarm systems produce?
What are the three types of specialty signals produced by fire detection an alarm systems?…
- Pneumatic rate of rise line heat detector.
- Rate compensation heat detector.
- Electronic spot type heat detector.
What is a proprietary fire alarm system?
In the computing (as in the alarm) world, proprietary is often used to describe software that is not open source or freely licensed. Therefore, with a proprietary fire alarm system the manufacturer and the local authorized service provider are usually the same company.
Is fire pump running alarm or supervisory?
A “pump running” signal can be programmed and designated as either an alarm or supervisory signal; other monitored points, such as “phase loss” or “disconnect switch open” must be designated as a supervisory signal per NFPA 72, 6.8.
What is supervisory switch?
What is a supervisory switch? Supervisory switches detect the status of a fire sprinkler system and relay that information to a central, proprietary, or remote monitoring center or sound a local alarm. To properly maintain a fire sprinkler system, you need information.
What does a supervisory signal mean on a fire alarm system?
A supervisory signal indicates that there is an issue with one of the systems that are attached and monitored by the fire alarm system. Your fire protection professionals should be notified for these issues.
Why is my fire alarm supervisory signal yellow?
In some cases, fire alarm systems may have to retain their copper line. A fire alarm supervisory signal is typically yellow and indicates there’s an issue with another system that’s attached and monitored by the fire alarm system. Technicians sometimes forget to leave fire sprinkler valves open after service.
Is my fire alarm system monitored by the police?
Say your home fire alarm system (some older and/or small businesses are also still be unmonitored), it’s not monitored by anyone, except the residents currently inside. In that case, someone has to call the fire department (here in the US that’s typically done via 911 emergency number).
What is a supervisory alarm in sprinkler system?
A supervisory alarm is typically something that is “supervised” by the system, but not an actual alarm. For example, water flow in the sprinkler pipe causes an alarm. Closing the water valve causes a supervisory condition, the valve is not fully open. Often duct smoke detectors are a supervisory,…
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