KR-939SB3Three parameter combination (oil level-The temperature vibration combination probe is a non bus structured universal combination probe used in our company's cooling tower fan safety monitoring system. It can be used with various general-purpose secondary instruments or computer data acquisition and measurement systems(DCSThePLCwait）Connect and use.

This combination probe for monitoring the safe operation of wind turbine gearboxes integrates sensing, conversion, and transmission circuits for measuring oil temperature, oil level, and vibration signals inside, directly outputting the corresponding safety parameters4~20mA standard current signal can be connected to various general-purpose secondary instruments or computer digital acquisition and monitoring systems.

Probe temperature measurement uses platinum resistance sensors and semiconductor integrated devices; The oil level measurement adopts the principle of capacitive sensing; A sensor used for vibration measurement that directly obtains the acceleration signal of mechanical vibration, which is amplified, bandpass filtered, integrated once, and true RMS（RMS）Transformer, which converts the vibration waveform within the effective bandwidth into true effective value conversion; The final oil level, temperature, and vibration are all generated4～20mAOutput.