Technical Specifications Measurement Type: Casing vibration velocity Output Signal: 4-20mA analog current signal Power Supply: 24V DC Frequency Response: 10Hz ~ 1kHz Mounting Thread: 1/4-28 UNF Operating Temperature: -40℃ ~ +85℃ Housing: Stainless steel sealed housing
Functional Features Integrated vibration measurement and signal conversion in single unit. Standard 4-20mA current output directly for DCS/PLC system. Built-in vibration filtering and amplitude calculation circuit. Sealed stainless steel housing for industrial harsh environment. Compact structure for direct installation on bearing housing. Simple two-wire loop power supply and signal transmission.
Application Scenarios Bearing housing vibration monitoring for fans, pumps and small compressors. General rotating machinery vibration measurement connected to plant DCS. Power plant auxiliary equipment condition monitoring. Petrochemical plant auxiliary rotating equipment supervision. Industrial online vibration monitoring without dedicated rack system.
Performance Parameters Measurement linearity error: ≤5% full scale Output loop resistance: Adapt to wide load resistance range Long-term stability: Low drift for continuous field operation
Structural Characteristics Stainless steel sealed sensor housing. Internal piezoelectric sensing element and signal processing PCB. Threaded base for stud mounting. Cable outlet for two-wire signal and power cable. Hermetic seal structure against dust and moisture.
Working Principle The internal piezoelectric element captures casing vibration and converts mechanical vibration into charge signal. The built-in circuit filters and calculates vibration velocity value, then converts measurement value into standard 4-20mA current signal. The current signal is transmitted through two-wire loop to DCS or PLC for reading, display and alarm setting.
Installation Requirements Install transmitter on flat rigid surface of bearing housing using mounting stud. Connect two-wire cable to 24V DC power supply and DCS analog input channel. Confirm loop load resistance matches transmitter specification. Route cable away from high voltage and high power equipment. Ground housing according to site grounding standard. Calibrate measurement range before putting into operation.
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