A method for maintaining a boiling rate of a base fluid can include a determination of a fluid level of a turbulated base fluid in a reservoir. The fluid level can be determined by measuring at least one first height of the turbulated base fluid above the fluid level with at least a first sensor. The fluid level can be determined by measuring at least one second height of the turbulated base fluid below the fluid level with the first sensor. The method can include the establishment of the fluid level of the turbulated base fluid. The fluid level can be established according to the measured at least one first and second heights. The method can include the graduated introduction of an input fluid into the reservoir. A control valve can gradually introduce the input fluid in proportion to the established fluid level of the turbulated base fluid.

An electronic device comprising a lens and a selector ring is disclosed. The selector ring is mounted for rotation about the lens and comprises a plurality of tabs projecting inwards towards the lens which engaging with and are held within a tab receiving groove comprising a plurality of spaced notches. Each of the notches is dimensioned to receive one of said tabs. A wave spring positioned between an annular ledge of the lens and the selector ring which biases the plurality of tabs against the groove and such that when each of the plurality of tabs is positioned adjacent a respective one of the notches, the tabs are biased into the notches thereby preventing said selector ring from being rotated. A user disengages the tabs from the notches by pressing said selector ring against the bias of the wave spring, thereby allowing the selector ring to be rotated.

An electronic device comprising a lens and a selector ring is disclosed. The selector ring is mounted for rotation about the lens and comprises a plurality of tabs projecting inwards towards the lens which engaging with and are held within a tab receiving groove comprising a plurality of spaced notches. Each of the notches is dimensioned to receive one of said tabs. A wave spring positioned between an annular ledge of the lens and the selector ring which biases the plurality of tabs against the groove and such that when each of the plurality of tabs is positioned adjacent a respective one of the notches, the tabs are biased into the notches thereby preventing said selector ring from being rotated. A user disengages the tabs from the notches by pressing said selector ring against the bias of the wave spring, thereby allowing the selector ring to be rotated.

The invention provides a level switch having a near field communications facility which allows at least some functions of the switch to be powered and the communication of data between the switch and a reader. Application and calibration information are examples of data that can be read to and from the switch, both in the factory and in the field.

This invention discloses a multipurpose float switch mounting bracket, which comprises a curved plate and a flat plate, the curved plate is connected to a first end of the flat plate, and two position-limitation strips are arranged on the outer convex surface of the curved plate, the flat plate is provided with a first set of mounting holes and a second set of mounting holes. The pump is provided with a first set of threaded holes which are corresponding to the first set of mounting holes, and the float switch is provided with a second set of threaded holes which are corresponding to the second set of mounting holes. Via the above solution, the multipurpose float switch mounting bracket fixes the float switch onto the pump by connecting the flat plate of the bracket to the float switch and the pump with screws.

In an embodiment of the present disclosure, a condensate level switch mounting assembly includes a condensate level switch having a mounting frame, a first bracket configured to fixedly attach to a condensate drain pan, and a second bracket having a mounting plate configured to engage with the mounting frame of the condensate level switch to secure the condensate level switch to the second bracket. The condensate level switch mounting assembly further includes a fastener assembly configured to couple the second bracket to the first bracket such that an angular position of the second bracket is adjustable relative to the first bracket.

In an embodiment of the present disclosure, a condensate level switch mounting assembly includes a condensate level switch having a mounting frame, a first bracket configured to fixedly attach to a condensate drain pan, and a second bracket having a mounting plate configured to engage with the mounting frame of the condensate level switch to secure the condensate level switch to the second bracket. The condensate level switch mounting assembly further includes a fastener assembly configured to couple the second bracket to the first bracket such that an angular position of the second bracket is adjustable relative to the first bracket.

A switch device capable of safely opening or short-circuiting an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery is provided. The device includes first and second conductors connected to an external circuit, and a reaction part including an insulating material which changes state on contact with a liquid, the first and second conductors being electrically connected or disconnected by the insulating material changing state on contact with the liquid.

A switch device capable of safely opening or short-circuiting an electrical circuit in response to an abnormality such as wetting with water or liquid leaking from a battery is provided. The device includes first and second conductors connected to an external circuit, and a reaction part including an insulating material which changes state on contact with a liquid, the first and second conductors being electrically connected or disconnected by the insulating material changing state on contact with the liquid.

The humidifier has an upper tank and a lower reservoir. A liquid level switch in the lower reservoir works in conjunction with a valve in a water passage between the upper tank and the lower reservoir in order to provide an automated flow of water to the lower reservoir during operation of the humidifier. The upper tank is unsealed, such that air in the upper tank may equalize with an ambient air pressure. The humidifier can be top-filled allowing that the upper tank to be permanently affixed to the base of the humidifier.