A high anti-vibration gas density monitor is provided, including a monitor enclosure, a signal control mechanism, and an indication value display mechanism independent from the signal control mechanism which are provided in the monitor enclosure. The signal control mechanism includes at least one corrugated pipe, a sealed compensation chamber, a signal generator, and a signal regulation mechanism. The corrugated pipe is perpendicular to a side wall of a control casing. The monitor enclosure includes an independent sealed compartment used to mount the indication value display mechanism. The sealed compartment is filled with anti-vibration oil, or is hermetically filled with gas. The indication value display mechanism includes a Bourdon tube, a base, an end holder, a movement, a pointer, and a dial.

An expansion system for temperature detection by means of thermomechanical expansion and movement has an expansion receptacle, an elongate fluid line which is connected in a fluid-conducting manner thereto, and a switching means which is mechanically operatively connected to the expansion receptacle for the purpose of actuation of a switching process of the switching means at a settable actuation point. A working fluid is contained in the expansion receptacle and in the fluid line. Furthermore, an activation material which is formed to change, upon contact with the working fluid or upon mixing with the working fluid, said working fluid with regard to its volume and/or its flowability is contained in the expansion system.

A flow or level switch comprises a sensor/switch assembly which is adapted for mounting in connection with either a fitting having an offset defining a channel to detect fluid flow through an orifice into the channel or a tank having a ball float to detect the level of the ball float in the tank. A switch module comprises a control rod which reciprocates and activates a switch unit having a bi-positionable contact member. A follower, which may be in the form of an axle with an angularly fixed projection, engages the control rod to cause the contact member to move.

A high anti-vibration gas density monitor is provided, including a monitor enclosure, a signal control mechanism, and an indication value display mechanism independent from the signal control mechanism which are provided in the monitor enclosure. The signal control mechanism includes at least one corrugated pipe, a sealed compensation chamber, a signal generator, and a signal regulation mechanism. The corrugated pipe is perpendicular to a side wall of a control casing. The monitor enclosure includes an independent sealed compartment used to mount the indication value display mechanism. The sealed compartment is filled with anti-vibration oil, or is hermetically filled with gas. The indication value display mechanism includes a Bourdon tube, a base, an end holder, a movement, a pointer, and a dial.

An expansion system for temperature detection by means of thermomechanical expansion and movement has an expansion receptacle, an elongate fluid line which is connected in a fluid-conducting manner thereto, and a switching means which is mechanically operatively connected to the expansion receptacle for the purpose of actuation of a switching process of the switching means at a settable actuation point. A working fluid is contained in the expansion receptacle and in the fluid line. Furthermore, an activation material which is formed to change, upon contact with the working fluid or upon mixing with the working fluid, said working fluid with regard to its volume and/or its flowability is contained in the expansion system.

A flow or level switch comprises a sensor/switch assembly which is adapted for mounting in connection with either a fitting having an offset defining a channel to detect fluid flow through an orifice into the channel or a tank having a ball float to detect the level of the ball float in the tank. A switch module comprises a control rod which reciprocates and activates a switch unit having a bi-positionable contact member. A follower, which may be in the form of an axle with an angularly fixed projection, engages the control rod to cause the contact member to move.

A multi-condition sensor, comprising a housing defining a component cavity, a pressure input tube disposed through the housing, a fault actuator disposed within the component cavity of the housing and in pressure communication with the pressure input tube through the housing, wherein the fault actuator is configured to extend and contract as a function of pressure from the pressure input tube, an alarm actuator disposed within the component cavity of the housing opposite the fault actuator and configured to be actuated by the fault actuator and to extend to a maximum fault position, and an adjustable alarm contact disposed on an opposite side of the alarm actuator within the component cavity and configured to be adjusted to a predetermined extension length from the housing to provide a predetermined alarm contact position.

A multi-condition sensor, comprising a housing defining a component cavity, a pressure input tube disposed through the housing, a fault actuator disposed within the component cavity of the housing and in pressure communication with the pressure input tube through the housing, wherein the fault actuator is configured to extend and contract as a function of pressure from the pressure input tube, an alarm actuator disposed within the component cavity of the housing opposite the fault actuator and configured to be actuated by the fault actuator and to extend to a maximum fault position, and an adjustable alarm contact disposed on an opposite side of the alarm actuator within the component cavity and configured to be adjusted to a predetermined extension length from the housing to provide a predetermined alarm contact position.