Non-contact measurement of belt tension by analyzing sound waves. Sound waves (natural frequency) generated from the belt are captured by a microphone and processed by a computer. Anyone can easily and accurately measure belt tension.
Development of eco-friendly products Gates Unitta Asia is actively working on environmental conservation, not only for toothed belts and pulleys but also for the sonic belt tension meter U-550. Conforms to RoHS2 Directive.

- Introducing a new model that evolved from the needs of the field
- Improved measurement sensitivity
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- Enhanced the frequency band that was difficult to measure with conventional models. Improved the range setting to make it easier to take. Even at low frequencies, he added a LOW range switching function to improve sensitivity at low tension and long spans. Accurate and stable measurement is
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- Significantly shortened the time between flipping the belt and displaying the tension value. Continuous measurement can be performed without stress, contributing to improved productivity.
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- Uses an organic EL screen
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- By adopting an organic EL screen, a clear display is realized even in a dark measurement environment. In addition, it is now possible to recognize the screen from an oblique angle in a cramped measurement environment.
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- Enhanced manual installation function
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- Introducing a new model that evolved from the needs of the field . You can assign arbitrary names to the 40 types of measurement conditions that can be stored inside the main unit. *Operation on a PC is required.
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- Highly sensitive microphone.
- Built-in unit mass value: 69 belt specifications such as Gates, Unitta, Asian, etc. are stored in the host. The unit mass value can be displayed by entering the model.
- Automatic trigger function: After pressing the measurement button, lightly touching the belt can automatically perform continuous measurement function.
- Large-capacity memory: can record 500 measurement results and 40 measurement conditions.
- Result value judgment: Set the upper and lower limit condition values to automatically perform the judgment of the measurement result value.
- Wide measurement frequency: 10~ 5,000 Hz measurement frequency range.
- Automatically eliminate background noise: From the time you turn on the power to the time you press the “MEASURE” button, the surrounding noise environment is periodically measured and the microphone sensitivity is automatically adjusted.
- Supports measurement environments in narrow spaces: Four different types of microphones are provided to support narrow working environments.
- Precautions for use
- Before using the product, read the instruction manual carefully and use it correctly.
- Be sure to check that the machine has stopped, for example, by turning off the power to the motor before measuring the tension.
- Do not use this product for purposes other than tension measurement.
- If water or oil adheres to this product, or if it is subjected to a shock such as being dropped, it may cause malfunction or malfunction.

Model name
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U-550
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part number
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TM-550
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Measuring range
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10Hz to 5,000Hz
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power supply
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Alkaline batteries (AAA x 2)
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External dimensions
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Width 59 x Thickness 26 x Length 160mm
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mass
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120g
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accessories
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- Flexible arm type microphone (Part number: TM-AMM)
- Carrying case,
- Alkaline batteries (AAA type x 2)
*USB cable is not included.
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