VT800 Dynamic Balance Measuring Instrument

The dynamic balance measuring instrument originates from multiple functions such as on-site vibration data measurement, vibration analysis, and single/double-sided dynamic balance. It is simple and easy to use, and is a tool for predictive maintenance and repair in industrial and mining enterprises, especially in equipment manufacturers such as fans and motors, as well as vibration technology service organizations.

VT800 Dynamic Balance Measuring Instrumentprinciple

１. General measurement:

Speed measurement: 30-30000 rpm

Vibration measurement: 0.01-5000 μ m (peak to peak)

0.01~2000mm/s (effective value)

Vibration analysis: FFT spectrum analysis

Display mode: Dot matrix graphic 64X240 Dot matrix graphic LCD Chinese dish

Keyboard: Eight keys

２. Dynamic balance measurement:

Measurement points: single measurement point or single-sided dual measurement point or double-sided

Vibration signal frequency band: 3Hz~1KHz

Same frequency working speed: 180-30000 rpm

Same frequency amplitude range: 0.01-5000 μ m (peak to peak)

Vibration intensity range: 0.01-2000mm/s (effective value)

Phase accuracy: 0-360 °± 1 °

Unbalance reduction rate: ≥ 95%

Principle of Dynamic Balance Measuring Instrument

Panel diagram:

Photoelectric input - connected to photoelectric sensor.

Vibration input - connect A and B magneto electric speed sensors separately (or connect eddy current sensors according to the user).

The photoelectric indicator light flashes synchronously with the device speed.

The charging indicator light turns red during the battery charging process and green when fully charged.

Please note that when the battery voltage is below 10V, timely charging is required.

The AC-DC switch is placed on the AC side and powered by AC220V. The power switch is not turned on, charging the battery. The switch is placed on the DC side and powered by the internal battery.

VT800 Dynamic Balance Measuring InstrumentMain functions

● It has multifunctionality and can be used as a tachometer as well as for vibration measurement, especially for dynamic balance measurement

All functions of quantity. (Real time display of unbalanced vibration quantity and phase)

● It has the ability to automatically measure the influence coefficient using the trial weight method and calculate single-sided and double-sided * counterweights, or a known influence system

Calculate the weight directly based on the measured original vibration, which can be measured and calculated simultaneously, or input the calculation capability at once.

Has the ability to calculate the selected angle of the calculated weight to the left and right.

● Capable of frequency analysis for detecting vibration components at the same frequency, half frequency, and multiple frequency as the rotor.

● Easy to operate, the instrument automatically prompts, and can be used by general personnel

Operation precautions

1. Users should not easily press the 'reset' button during continuous measurement, otherwise all data from the button will be lost.

If you have an impact coefficient at hand, you can re-enter it.

2. It is necessary to carefully prepare the photoelectric signs and observe the accuracy of the machine speed. This is an instrument for conducting dynamic balance measurement

An important guarantee for testing.

There are multiple reasons that can cause significant machine vibration. Only when the amplitude of the same frequency accounts for a larger component of the total amplitude,

Only by using dynamic balancing methods can vibration be reduced. On the contrary, it cannot achieve the desired effect.

4. In the dynamic balance weighing method, it is necessary to add the known weight to the known position of the measured surface and pay attention to increasing the weight

The changes in the amplitude and phase of the subsequent vibration and the original vibration amplitude and phase. If the data changes are unclear

If it is obvious, the vibration reduction effect after calculation and processing will not be significant in the future. If the amplitude change is not significant, then

Increase the weight of the test. If the phase change is not significant, the position of the trial weight should be moved again.

5. When balancing a rotor for the first time, the trial weight method must be used. After obtaining the influence coefficient through the trial weight method, for similar products

The balance of the rotor can be achieved using the influence coefficient method, which is relatively simple to operate.

6. This instrument can be powered by AC 220V or by the built-in 12V battery. General requirements for submission

Charging with 220V current and powered by 12V battery, the noise inside the machine is relatively low. Please note that when the battery is charged

When the voltage is below 10V, timely charging is required. Otherwise, it will affect the lifespan of the battery.

7. The magnetic suction seat equipped with the sensor has a high suction force and is easy to pinch, please be very careful