Working principle of blower vibration speed sensor

HD-ST-3Vibration 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 matchingLH6011TheLH6012Vibration monitoring and protection device, capable of measuring the bearing vibration of various rotating machinery, can detect various faults of rotating machinery early, and output standards4-20mACurrent signal, sent toPLCTheDCSandDEHSystem, etc.

2、 Electrical indicators:

spirit Min Degree:20mv/mm/s（±5%）

Frequency response: 10to1000 Hz

Natural frequency:12Hz

Measurable amplitude: ≤2000Mm(P—P)

zuiHigh acceleration:10g

3、 Physical indicators:

Dimensions: φ35×80mm

heavy Quantity: Approximately350g

Measurement direction: vertical or horizontal

4、 Environmental indicators:

Wen Degree: -30℃ to+100℃, relative humidity ≤90%

HD-ST-3Vibration speed sensor, vibration probe

1、 Introduction:

LH6012The vibration monitoring and protection device is mainly used for monitoring the rotational speed600～6000turn/Long term monitoring of vibration intensity of rotating machinery, andLHThe series of magneto electric vibration speed sensors are matched to monitor the vertical and horizontal vibrations of rotating machinery. The vibration intensity value is displayed by the meter head on the front panel of the instrument, and it also has standard current output, which can be used with various types of equipmentDCSThePLCSystem connection, when the vibration value exceeds*This instrument can be connected to an external sound and light alarm to prompt on-site operators to take preventive measures, and has alarm and danger switch output to protect the safe and reliable operation of the machine.

2、 Main functions:

The shafts of rotating machinery such as steam turbines, coal mills, fans, reducers, water pumps, centrifuges, balancing machines, and air compressors Monitoring and protection of tile vibration.

3、 Function Description:

The measured value and alarm set value can be separately set atLEDDisplayed on the digital tube.

When the alarm setting value is exceeded, the alarm indicator light will turn on, and at the same time, a switch signal will be output on the rear panel to protect the monitored equipment.

Alarm setting delay adjustment, range1-60Second, to prevent on-site interference from causing false alarms.

Equipped with a current output interface, it can be connected to computersDCSThePLCConnect devices such as systems and paperless recorders.

It has power up and power down detection functions, sensor disconnection detection functions, and cuts off alarm and shutdown output circuits, effectively suppressing instrument false alarms.

vibration severity(vibration intensity)Free switching of vibration amplitude (vibration displacement).

4、 Electrical indicators:

Sensor input:LH100Magnetic electric speed sensor orLH110Vibration acceleration sensor

Measurement range:0～500Mm pk-pk

0～50.0mm/s rms

Measurement accuracy: Linear error ≤±1%(Full degree value)

Display mode: digital tube display

frequency Sound:1.0－300Hz

Current output:4～20mA; Drive500Ω load

Alarm contact capacity:AC220V/3A，DC28V/3A

Power supply220VAC±10% 50HzPower consumption ≤10W

5、 Physical indicators:

Overall dimensions:

Disk mounted table:160(Width) ×80(High) ×160(Deep)mm

Hole size: 152(Width) ×76(High)mm

Hanging Wall Table: Width190X high290X thickness92（mm）；

Installation size: Bottom170X high272（mm）

6、 Environmental indicators:

Wen Degree: -20℃ to+60℃, relative humidity ≤90%