Production of chassis vibration sensors

HD-ST-3 Vibration Speed Sensor Vibration Probe

1、 Introduction

Vibration velocity sensors are mainly installed on the bearing covers of various rotating mechanical devices, such as turbines, compressors, fans, and pumps. It is an electromagnetic sensor that outputs voltage by cutting magnetic field lines with a moving coil, and therefore has the characteristics of not requiring power supply during operation and easy installation. Installation position: vertically or horizontally installed on the measured vibration point, with the bottom of the sensor usedM10×1.5Screw fixation.

Vibration speed sensor, capable of measuring the bearing vibration of various rotating machinery, can detect faults in various rotating machinery early, and can be matchedLH6012The output standard of intelligent vibration monitoring and protection instrument4-20mACurrent signal, sent toPLCTheDCSandDEHSystem, etc. It can achieve continuous and long-term vibration monitoring and protection of rotating machinery, suitable for vibration measurement and protection of large mechanical equipment such as steam turbines, fans, water pumps, and coal mills.

2、 Electrical indicators:

spirit Min Degree:20mv/mm/s±5%

Test conditions: (temperature)20℃±5℃, in80HzThe speed is10mm / sMeasured under certain circumstances

Frequency response: 10to1000 Hz±8%

Natural frequency: about12Hz

Measurable amplitude:≤2000μm(P — P)

bigAcceleration:10g

3、 Physical indicators:

Overall dimensions:φ35×80mm

Installation method:M10×1.5deep10mmScrew fixation

heavy Quantity: Approximately350g

Measurement direction: vertical or horizontal (universal)

4、 Environmental indicators:

Wen Degree: -30℃ to+120℃

relative humidity≤90%,No strong magnetic interference

Working Principle:

The vibration speed sensor uses the principle of magneto electric induction to convert the vibration signal into a voltage signal, which is proportional to the vibration speed value. It can be used to measure the vibration of the casing, bearing seat or structure. It is directly installed outside the machine, with high measurement accuracy, good stability, and extremely convenient use and maintenance.

Function and significance:

Matching connectionLH6012Vibration monitoring and protection deviceLH311Vibration transmitter, capable of measuring the bearing vibration of various rotating machinery, can detect faults in various rotating machinery early, and output standards4-20mACurrent signal, sent toPLCTheDCSandDEHSystem, etc. It can achieve continuous and long-term vibration monitoring and protection of rotating machinery, suitable for vibration measurement and protection of large mechanical equipment such as steam turbines, fans, water pumps, and coal mills.

Mainly used for measuring and diagnosing vibration of steam turbines, fans, and electric motors:

Like other mechanical equipment, electric motors undergo changes in physical and chemical parameters such as energy, heat, wear, and vibration during motion. These changes in information directly or indirectly reflect the operating conditions of the motor. Measuring the vibration value of the motor can effectively diagnose its faults. Therefore, using vibration velocity sensors to monitor the generator in real-time during operation, taking preventive measures in advance to avoid unnecessary losses!

Performance advantages:

It has the characteristics of easy installation and maintenance, accurate measurement, good stability, long service life, and effective suppression of false alarms.

And it has the advantages of small size, sturdy and reliable, long service life, no need for power supply and lubricating oil, etc

Installation location:

Mainly installed on the bearing covers of various rotating mechanical devices (such as turbines, compressors, fans, and pumps), vertically or horizontally installed on the measured vibration points.

Signal output:

The output signal of a vibration speed sensor is a voltage signal, and the voltage value is proportional to the vibration speed. Generally, software is used to convert this voltage signal into the measured speed signal according to the characteristics of the sensor. Therefore, when using a speed sensor, we usually obtain the speed signal, not the charge or voltage signal. Output standard for vibration monitoring instrument4-20mACurrent signal, sent toPLCTheDCSandDEHSystem, etc.

Environmental indicators:

Dustproof, moisture-proof, and oil resistant

Technical Specifications:

spirit Min Degree:20mV/mm/s±5%；

Test conditions: (temperature)20℃±5℃, in80HzThe speed is10mm / sMeasured under certain circumstances

Amplitude limit:≤2000μm (peak-peak)；

Frequency response:（10~1000）Hz；

zuiHigh acceleration:10g；

Measurement direction: vertical or horizontal; (Universal type)

Installation method: Use one in the center hole at the bottom of the sensorM10×1.5Screw fixation;

Output wiring method: aviation plug or direct lead;

Environmental conditions: dustproof and moisture-proof

Operating temperature:（-30 ~ 120）℃；

relative humidity≤95 %(Non condensing);

Overall dimensions:Φ35×80（mm3）；

Application fields:

Monitoring and protection of bearing vibration in rotating machinery such as steam turbines, coal mills, fans, reducers, water pumps, centrifuges, balancing machines, and air compressors. Widely used in fields such as electricity, steel, chemical industry, coal mining, papermaking, thermal power, and water conservancy.

HD-ST-3 Vibration Speed Sensor Vibration Probe