What are fire alarm supervisory devices?
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 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 alarm signal?
Supervisory Signal. 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.
What are the 4 types of supervising station alarm systems?
Central station fire alarm system. Proprietary supervising station fire alarm system. Remote supervising station fire alarm system.
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 the three types of signals a fire alarm system may provide?
There are three categories of alarm signals for a fire system that describe and delineate by nature the severity of and type of response needed: alarm, trouble, and supervisory. These signals are communicated from the detection device triggering the alarm to the fire alarm control panel.
What kind of supervising station that is considered as recognized and most reliable?
central station
A central station is recognized as the most reliable type of supervising station.
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 is the difference between a trouble alert signal and a supervisory signal?
What are the different types of fire alarm systems?
There are three main types of fire alarm monitoring systems: ionization, photoelectric, and combination alarms. Below we will discuss each type of alarm and how they can help detect fires.
Which of the following is an alarm signal initiating device?
Fire alarm initiating devices include smoke detectors, sprinkler water flow switches, manual pull stations, and more.
What are the five components to a fire alarm detection system?
The Five Basic Parts of a Fire Alarm System
- Fire alarm control panel.
- Initiating devices.
- Notification devices.
- Primary power supply.
- Backup power supply.
What is supervisory switch?
Supervisory Switches are the devices that control the entire fire sprinkler system. The sensors in the device offer various choices for supervising and controlling the complete system. Supervisory switches are equipped to monitor and provide you the peace of mind that your system is under control.
What are the three basic types of fire detection systems?
What two alarm devices are activated when a fire is detected?