Portable Dynamic Balancing Tester
The portable dynamic balancing tester is simple to operate, with human-machine dialogue, menu prompts, and measurement data can be locked and held at any time. It is compact and lightweight, with the keyboard and display on the panel, and input/output sockets and various control switches all placed on the panel. It can perform on-site dynamic balancing of various rotating machinery as a whole, equivalent to a movable balancing machine. It is exquisitely designed and easy to carry, with the entire instrument housed in a portable instrument case. In addition to general dynamic balancing functions, it is specially designed for the whole-machine dynamic balancing of horizontal screw centrifuges and disc centrifuges, making it convenient to measure the vibration of compound rotating drums with differential speeds and perform on-site dynamic balancing.
Technical Parameters:
1. General Measurement:
Speed Measurement: 30～30,000 rpm
General Vibration Measurement: 0.1～5000μm (Peak-to-Peak)
0.1～2000mm/s (RMS)
Vibration Analysis: FFT Spectrum Analysis
Display Mode: Dot Matrix Graphic 64X240 Dot Matrix Graphic LCD Chinese Menu
Keyboard: Eight Keys
2. Dynamic Balancing Measurement:
Measurement Points: Single Point or Single Plane Dual Points or Dual Planes
Synchronous Speed Range: 300～30,000 rpm When using ultra-low frequency sensors for vibration signals, the synchronous speed can be reduced to 60 rpm.
Synchronous Amplitude Range: 0.1～5000μm (Peak-to-Peak)
Vibration Severity Range: 0.1～2000mm/s (RMS)
Phase Accuracy: 0-360°±1 °
Unbalance Reduction Rate: ≥95%
Portable Dynamic Balancing Tester Advantages:
1. No need to disassemble rotating parts, reducing downtime and waste of manpower and resources.
2. Correction can be performed at actual working speed; usually, when rotating parts are disassembled and corrected on a balancing machine, high-speed correction is not possible.
3. Many factors affect balance, including the balance of all rotating components (impellers, shafts, couplings, key seats, etc.) and installation clearances, deflection angles, etc. Therefore, direct on-site online balancing yields better balancing results.
II. Operating Precautions
▲ During continuous measurement, do not press the "Reset" key easily, otherwise all data will be lost. If you have the influence coefficients at hand, you can re-enter them.
▲ Ensure the photoelectric marker is properly made and observe the accuracy of the machine speed. This is an important guarantee for the instrument to carry out dynamic balancing tests.
▲ There are many reasons for large machine vibration. Only when the synchronous amplitude accounts for a large proportion of the total vibration amplitude can the dynamic balancing method reduce vibration. Otherwise, ideal results cannot be achieved.
▲ In the dynamic balancing trial weight method, it is necessary to add the known trial weight to the known position on the measured surface. Pay attention to the changes in vibration amplitude and phase after adding the weight compared to the original values. If the data changes are not obvious, the vibration reduction effect after calculation and processing will also be not obvious. If the amplitude change is not obvious, increase the trial weight. If the phase change is not obvious, move the trial weight to a new position.
▲ For the first balancing of a rotor, the trial weight method must be used. After obtaining the influence coefficients through the trial weight method, the influence coefficient method can be used for balancing similar rotors, which is simpler to operate.
▲ This instrument can be powered by AC 220V or by the built-in 12V battery. Generally, it is recommended to charge with AC 220V and power with the 12V battery, which results in lower internal noise. Please note that when the battery voltage drops below 10V, it should be charged promptly; otherwise, the battery life will be affected.
▲ The magnetic base of the sensor has strong suction and can easily pinch fingers; please be very careful.
