Correct usage method of HG72 speed sensor

Correct usage method of HG72 speed sensor

The correct usage method of vibration sensorsIt is crucial to ensure measurement accuracy, extend equipment lifespan, and ensure equipment safety. The following is a step-by-step usage guide and precautions:

1、 Preparation before installation

Choose the appropriate sensor

Select acceleration type (high-frequency vibration), velocity type (medium frequency vibration), or displacement type (low-frequency vibration) sensors according to measurement requirements.

Confirm whether the range, sensitivity, and frequency response range of the sensor match the device being tested.

Consider environmental factors such as temperature, humidity, and corrosiveness when selecting a protection level (such as IP67).

Check the equipment status

Confirm that the surface of the tested equipment is flat, clean, and free of oil stains, avoiding loose installation or signal distortion.

Check the appearance of the sensor for any damage, and ensure that the cable is not aged or broken.

2、 Installation operation specifications

Installation location selection

Key points: Select locations where equipment vibration is significant (such as bearing seats, motor housings).

Direction: The axial direction of the sensor should be consistent with the direction of the measured vibration (such as horizontal, vertical, or axial).

Avoid interference: stay away from electromagnetic fields, high temperature sources, or fluid impact areas.

fixation method

Bolt fixation: suitable for long-term monitoring to ensure a tight fit between sensors and equipment surfaces.

Magnetic suction or adhesive: suitable for temporary or non drilling scenarios, but attention should be paid to fixing strength.

Avoid suspended installation: Sensors cannot be installed suspended, otherwise measurement errors may occur due to their own weight.

cable connection

Use shielded cables to avoid signal interference.

The cable length should be as short as possible to avoid signal attenuation caused by a small bending radius.

3、 Debugging and Calibration

Pre-operation inspection

Confirm that the signal type (voltage, current, 4-20mA) of the sensor matches that of the acquisition device (such as data acquisition instrument, PLC).

Check if the power supply voltage is stable (usually+12V or+24V).

zero point calibration

Adjust the zero offset of the acquisition device in a stationary state to ensure that the output value is zero.

Regularly calibrate (e.g. every 6 months) to avoid zero drift.

Sensitivity calibration

Use a standard vibration table or calibrator to verify the linear relationship between the sensor output and the actual vibration value.

Record calibration coefficients for subsequent data processing.

4、 Operation monitoring and maintenance

real-time monitoring

Observe whether the measured values are stable and consistent with the operating status of the equipment (such as speed and load).

Set an alarm threshold and promptly sound an alarm when the vibration value exceeds the set value.

regular inspection

Check the fixing status of the sensor every week to ensure there is no looseness.

Check cable connections monthly to prevent aging or damage.

Check quarterly whether environmental factors (such as temperature and humidity) exceed the working range of the sensor.

Fault handling

If the measured value is abnormal, first check whether the sensor installation is loose or the direction is incorrect.

If the signal is interrupted, check if the cable connection or sensor is damaged.

After long-term use, the sensitivity of the sensor may decrease due to aging and needs to be replaced.

5、 Common Problems and Solutions

problemreasonsolution

Measurement value is too large/too smallSensitivity setting error, range mismatchRe calibrate the sensor and adjust the parameters

The signal fluctuates greatlyLoose sensors and poor cable contactTighten the sensor and replace the cable

No signal outputSensor damage, cable breakageReplace the sensor or cable

Measurement distortion in high temperature environmentInsufficient temperature tolerance range of sensorChoose high-temperature resistant models or add heat dissipation measures

6、 Precautions

Avoid overload: The sensor range should be greater than the larger value of the measured vibration to avoid damage.

Lightning protection: Lightning protection devices should be installed outdoors to prevent damage from lightning strikes.

Corrosion prevention: In corrosive environments, sensors need to use anti-corrosion materials or install protective covers.

Data backup: Regularly backup monitoring data for easy fault analysis.

By following the above steps, it is possible to ensure the stable and accurate operation of the vibration sensor, providing reliable basis for equipment status monitoring and fault diagnosis.

Intelligence: Future vibration sensors will have stronger data processing and analysis capabilities, capable of real-time analysis and diagnosis of vibration signals, directly outputting information such as fault type and location, reducing reliance on manual analysis.

Wireless: With the development of wireless communication technology, wireless vibration sensors will be more widely used. Wireless sensors can be easily installed in various complex environments, reducing wiring costs and workload, while achieving remote monitoring and data transmission.

Miniaturization: In order to meet some application scenarios with strict space requirements, such as micro mechanics, biomedical fields, etc., vibration sensors will develop towards miniaturization, with smaller volume and lower power consumption.

Multifunctionality: Integrating multiple sensing functions, such as simultaneously measuring parameters such as vibration, temperature, pressure, etc., providing more comprehensive equipment status information to meet the monitoring needs of complex systems.

Correct usage method of HG72 speed sensor