What is a potter switch?
The Potter PS10 Series Pressure Actuated Switches are designed for the detection of a waterflow condition in automatic fire sprinkler systems of particular designs such as wet pipe systems with alarm check valves, dry pipe, preaction, or deluge valves.
What is waterflow switch?
A water flow detector, also known as a flow switch, is an electro-mechanical device designed to send an alarm to a monitored panel and/or fire department when a continuous flow of water occurs through a fire sprinkler system’s piping. This flow signifies an activated sprinkler head or a leak in the system.
How do you test a flow switch?
How to Test a Flow Switch
- Put cover on the flow switch and turn power on. Video of the Day.
- Start flow through the designated system.
- Observe flow in operation to determine if flow switch is working properly.
- Repeat this process many times to ensure flow switch and designated system is in fact working accurately. Tip.
Is a flow switch a sensor?
A flow switch, sometimes referred to as a flow sensor or flow indicator, is a device used to monitor the flow rate and pressure of liquids, air or other gaseous media through a duct, system or loop.
What is the function of 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 key information.
What is a PS40?
The Potter PS40 Series Supervisory Pressure Actuated Switches are designed primarily to detect an increase and/or decrease from normal system pressure in automatic fire sprinkler systems. Typical applications are: Dry pipe systems, pre-action air/nitrogen supervision, pressure tanks, air supplies, and water supplies.
What is low pressure switch?
A low-pressure switch is connected to the suction, or “low” side of the system to sense suction pressure. When the pressure in the system exceeds the high pressure switch setting, the switch will open circuit the compressor clutch and the compressor will stop circulating refrigerant.
How many types of flow switches are there?
There are two main flow switch types — the paddle design and the piston or shuttle design. The paddle design of a flow switch places a hinged or spring-mounted paddle in the liquid flow path. Media flowing at the target rate holds this in position.
How does an IFM flow switch work?
ifm flow switches use the cooling effect of a flowing fluid or gas to monitor its flow rate. The amount of thermal energy that is removed from the tip determines the local flow rate. The calorimetric sensing principle provides a precise and fast detection of flow and no flow.
How do you troubleshoot a flow switch?
How to Troubleshoot Flow Switch Operation
- Turn the unit off and unplug it from the power source for 30 seconds.
- Ensure the flow switch valve is open.
- Look at the water level in the hot tub.
- Clean out the filter.
- Check the output pressure and input pressure of the spa’s jets and filter.
What is the purpose of flow switch?
A flow switch, like all switches, is a device designed to make and break an electric current in a circuit. In an industrial system, a flow switch is essential in monitoring and controlling the flow rate of process media – such as steam, liquids, and gases.
How does a flow switch work?
A piston (or shuttle) flow switch is designed so that a free-floating magnetic piston responds to the amount of flow within a pipe. When there is an increase or a decrease in the flow rate, movement of the piston actuates a hermetically sealed reed switch, triggering the specified action.
What is the difference between flow switch and tamper switch?
The two most common kinds of supervisory switches found in most sprinkler systems are tamper switches to monitor the control valves and flow or pressure switches to detect when a sprinkler system flows water.
How do you adjust a pressure switch on a potter?
The operation point of the PS40 Pressure Switch can be adjusted to any point between 10 and 60 psi (0,7 – 4,11 bar) by turning the adjustment knob(s) clockwise to raise the actuation point and counter clockwise to lower the actuation point. In the case of the PS40-2, both switches operate independent of each other.
What is the difference between a pressure switch and a low pressure switch?
The only difference is that low pressure switches have an off, start and auto feature which helps preserve the life of the pump. If pressure in the system were to drop approximately 10 PSI below the set cut-in point, the switch will open and turn off the pump.
Are all flow switches the same?
Flow switches are categorized either by the flowing media or by the measurement type. This means that the types can be combined, such as volumetric liquid flow switch. Gas flow switches are for media such as air and steam. They are commonly used in HVAC applications.
What is the difference between pressure switch and flow switch?
All flow switches are designed to detect fire sprinkler activation, but only some pressure switches play the same role. In fire protection, flow switches, or water flow detectors, are exactly that: devices that sense when water flows through a fire sprinkler system.