PR6424/014-130 Eddy Current Signal Converter EPRO

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Essential details：PR6424/014-130 Eddy Current Signal Converter EPRO

Products Description

The PR 9376 speed sensor is ideally suitable for contact less speed measurements at ferromagnetic machine components. Rugged construction, simple installation and excellent switching characteristics permit the use within a wide application field in industry und laboratory. Together with speed measuring amplifiers of the MMS 6000 program of epro, various measuring tasks such as speed measurement, detection of rotational direction, measuring and supervision of slip, stand still detection etc. can be realized.
With its high resolution, fast electronics and steep pulse slopes, the sensor PR 9376 is suitable for measuring very high as well as very low speeds.
Another application area is the use as proximity switch e.g. for switching, counting or generating alarms at passing components or at machine parts coming sideways closer.

PR6424/010-130+CON011

The head of the PR 9376 is a differential sensor consisting of a half bridge with two hall-effect sensor elements. By means of integrated operational amplifiers, the Hall-voltage is amplified many times over. Processing of the Hall-voltage is carried out digitally in a DSP. In this DSP the difference of the Hallvoltage is determined and compared with a reference value. The result of this comparison is available at a push-pull output which is shortcircuiting proof for a short time (max. 20 s).
If a magnetically soft or steel trigger mark moves to the sensor in a square angle (i.e. in lateral direction), the magnetic field of the sensor will be distorted which effects the de-adjustment of the Hall-level and switching of the output signal.
The output signal remains high or low until the leading edge of the trigger mark causes an inverted detuning of the half bridge. The output signal is a steep sloped voltage pulse.
For this reason the capacitive coupling of electronic devices is possible, even at low trigger frequencies. High sophisticated electronic, hermetically closed encapsulated in a housing of rugged, stainless steel and a connection cable with Teflon isolation – if required with metal protection tube – ensure the safe and proper operation even under harsh, industrial environments.

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