U-550, U-508
Sonic Belt Tension Meter for Driver belts
This belt tension meter uses a microphone as sensor with a metal connector to insert top of the meter, which has a microcomputer inside to calculate belt frequency and display by LCD screen. It can display the vibration frequency Hz of the belt, or to display the belt tension N value from built-in formula to calculate the parameters entered by the operator. Comes with waist holster for easy carrying.
Features
Sonic wave is generated by flipping the belt span with the belt standing still, and it is captured by the sensor and processed by high performance computing, and belt tension is displayed in digital mode.

- Number to be memorize input data:40 kinds
- Can display unit weight of 69 Timing belts and Vee belts
Standard accessory sensor head:TM-AMM (Flexable Type, Entire length 17cm) § Option TM-COM (Soft wire type, Entire length 1m) (built-in Gates brand only)
- The 500 latest results are retained for record keeping, Export the results to PC per USB is possible (Note:Operate only Japanese Windows8/10 O/S )
- Switching Range ->3 steps
♦ Background noise must be avoided while apply the belt meter.
Specification
Model | U-550 |
Measurement sensor | Microphone |
Sonic frequency range | 10-5000 Hz (Manual switching 3 ranges.) |
Measurement accuracy | -- |
Buttons | 17 (ON/OFF, input, selecting and and setting) |
Font size | 3.0 mm, 4-lines EL with backlight |
Use and storage temperature range | -10ーC to 50ーC, below 80% (free from condensation) |
Environmental conditions | Avoid any sound or noise |
Output port | USB x1 (For Japanese O/S computer only) |
Power supply | (AAA x 2 pieces) Alkaline dry cell is recommended. |
Outer dimension | 160 (H) x 59 (W) x 26 (D) |
Mass | 120 g |