USB Smart Switches

IMI's revolutionary USB programmable smart switch is an ideal replacement for those unreliable old mechanical shock switches. It features the accuracy and small footprint of a piezoelectric accelerometer along with the simplicity of a two-wire switch. The brochure is an overview of our most popular models but custom programmed options are available as well ...Download brochure

Electronic Switches

Electronic switches require power to operate and utilise an input signal that is provided by an electronic vibration sensor, or accelerometer. This sensor may be built into the switch enclosure, or remotely located. A remote sensor is advantageous when the vibration switch enclosure will not fit within the installation location, or if the temperature at the installation location exceeds the capability of the switch's electronic components. The amplitude of the electrical signal generated by the sensor is proportional to the experienced vibration. Circuitry within the switch compares this signal amplitude against a predetermined threshold value.

Series 685B: Electronic, AC or DC power, dual switches
This precision electronic vibration switch is AC or DC powered, utilises an on-board or remote accelerometer, provides two relay or triac outputs, generates a 4-20 mA vibration output signal, and offers an analog vibration signal for FFT analysis and fault diagnostics.

Series 686A: Electronic, universal power, single switch
This revolutionary two-wire electronic switch offers the simplicity of a mechanical switch with the precision of an electronic switch. The unit operates from universal power that is scavenged from a load's power source. It is microprocessor controlled, has a built-in accelerometer, installs easily with a single stud, and has the smallest footprint of any vibration switch on the market.

Series 685AX1: Electronic, DC power, single switch
This general-purpose electronic vibration switch is DC powered, utilises an on-board accelerometer, and offers a single, 5-amp, Form C relay output.

Mechanical Switches

Mechanical switches do not require power and utilise the resistive force and travel of a spring as a measure of vibration amplitude. When the travel of a spring exceeds the predetermined threshold, the switch is actuated and latched by magnetic attraction. The threshold value is adjustable by changing the proximity of the magnet to the spring and hence the spring travel required for actuation. Switch reset is accomplished manually by disengaging the magnet from the spring.

Linear Adjust Mechanical Switch – 685A09

IMI Sensors has developed this new mechanical vibration switch, Model 685A09, which not only effectively competes in the mechanical vibration switch market but also has a significant technical advantage. This Linear Adjust Mechanical Vibration Switch has a unique new design that provides much better sensitivity adjustment than traditional designs. This allows a user to better control the trip level in the switch and improve protection of their equipment ...Download brochure

Mechanical, single switch
For machines requiring simplified contact closure protection, Models 685A07 and 685A08 offer a cost-effective approach to vibration protection. They offer the smallest mechanical switch footprint available in either NEMA 4 or explosion proof housings. The three axis protection allows confident, reliable monitoring of small plant equipment in less critical situations, where the precision of an electronic switch isn't necessarily required. Both the weatherproof and explosion proof versions contain manual internal adjustability with an external reset switch for ease of operation.