Unit Bentley (Pallis) probe
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How to install and adjust shaft vibration, shaft displacement, rotational speed, and key phase? Ask an expert
Using a multimeter to measure the voltage at the preamplifier’s installation location shows a value of around +10V to -10V. As for the displacement, you need to consult the equipment manufacturer regarding the appropriate settings; use a multimeter to measure the voltage. The rotation speed is generally 1-2 revolutions after it comes to a stop, depending on the size of the unit
The mechanical zero position needs to be determined for the displacement
Unit probe + extension cable + preamplifier + main cable + Bentley (Perry) system. Before installing the probe, a single-probe test must be conducted using a TK3 device. When installing it inside the unit, use specialized installation tools; set the multimeter to the voltage setting and measure the voltage at the preamplifier. Under normal conditions, the voltage should be between 9.75 and 10 V
Thank you. Does the shaft displacement also require the equipment to be used to check the mechanical zero point (12mA)?