Proteus industries-0100C24流量开关

Proteus industries-0100C24流量开关

Proteus industries-0100C24流量开关 Section 1: Overview Metering flow switches such as the Proteus 500 and 800 Series with Hall Effect sensors may be better suited for interfacing with current electronic control systems. Please contact us for assistance in selecting a sensor best suited to your application! Proteus 100 Series Fluid Flow Switches are designed to monitor the flow of fluid through a line. They are frequently used to assure that water is flowing in a cooling circuit, however they may be used in a wide variety of applications with many different fluids. Section 2: Flow Ranges and Pipe Connections Table 1 lists the model numbers and flow ranges. Model 100XXX versions can be configured in one of three different ranges, depending on the placement of the supplied blanking plugs. ? To operate across the A to B flow path, blanking plugs must be placed in ports C and D. ? To operate across the B to C flow path, blanking plugs must be placed in ports A and D. See Note below Table 1 ? To operate across the D to C flow path, blanking plugs must be placed in ports A and B. Section 3: How do they work? The rotor spins when liquid flows through the sensor body. Magnets in the rotor create a voltage in an induction coil mounted in the sensor body. The amplitude of the induced voltage is at a maximum when the magnet is immediately adjacent to the coil. The amplitude of the induced voltage is proportional to the rotational velocity of the rotor and the linear velocity of the liquid as it passes through the sensor body. This amplitude of the induced voltage is measured by a simple electronic circuit that compares it to a userset trip point voltage. Relay Interface: When the induced voltage is greater than the voltage achieved at a user-selelected trip point flow rate, the relay is energized. If the induced voltage is less than the voltage achieved at the userselected trip point flow rate or if the fluid stops flowing, power to the relay is shut off, and the relay is deenergized. The de-energized state is called the relay's normal position. The change of state of the relay is interpreted by the user’s equipment to control other system functions. Induction coil Rotor Transitor Interface: When the induced voltage is greater than the voltage achieved at a user-selected trip point flow rate a transistor is turned ON. If the induced voltage is less than the voltage achieved at the userselected trip point flow rate, of if the fluid stops flowing, a transistor will turn OFF. The change is state of the