USE815S Sensor Module Germany


Model Number: USE815S

PR 9268/20x-… 0.13gTransversal sensitivity

PR 9268/30x-… 0.27g

Category: SKU: USE815S Tag:
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A6760 power supply replaces old UES 815S power supply

With immediate effect, the new power supply A 6760 replaces the old UES 815S. Both power supplies have the same mechanical dimensions and the main electrical data of the A 6740 exceed the data of the UES 815S. The major difference between the power supplies is the pin allocation on the rear side.

The measuring element of the absolute bearing vibration sensors PR9268/x0x-100-RAD consist of a seismic mass with a coil, suspended on membrane springs and moving in the circular gap of a permanent magnet. The membrane springs lead the measuring element in the longitudinal direction. The sensors are operated above the resonance frequency, which is 4,5 Hz. The seismic mass remains at rest and due to the vibration of the sensor housing, an electric signal proportional to the vibration velocity is generated.

The sensors are dynamic sensors with the measuring coil as part of the seismic element, moving in the field of the permanent magnet. Damping of the measuring elements is realized by damping cylinders resp. by external wiring and set to a value of approx. 0.6, resulting in a very linear characteristic over the entire frequency range.

Measurements below the resonance frequency can be made with corresponding corrections of the amplitude responses. In case of too high vibration amplitudes, mechanical limit stops reduce the maximum amplitude of the seismic systems.

The transducers PR9268/20x-100-RAD are designed for vertical and PR9268/30x-100-RAD for horizontal operation.


Electrical data of meas. coil

DC resistance 375 Ohm
For Channel Clear detection, A6120 requiresadditional serial resistance of approx. 1500 Ohm within sensor circuit. This reduces the sensitivity to 28.5 mV/mm s-1.

Temperature range

Sensor without connector
Continuous -10 to +80°C (14 to 176°F)
Short time (1 minute) -10 to +105°C (14 to 221°F)
Storage / transport -10 to 70°C (14 to 158°F)