13
14
Thank you for choosing our sonic tension meter (U-550).
We guarantee for one year for the main body and six months for the sensor.
If our sonic tension meter (U-508) fails due to a manufacturing or workmanship defect
during the period, we repair it free of charge.
Please contact our distributor from which you purchased for the repair. (See the
enclosed warranty.)
When the official approval is required, direct the sensor to a communicator
which emits stable frequency sound from 10 to 5000 Hz, and measure the same way as
measuring tension. The calibration is enabled easily.
Tension meter official approval device (U-305-OS1) is also in the market.
If needed, please contact our sales department for paid official approval.
12. Guarantee & Repair Guidelines
About the installation tension level of our tooth belt, the gap will not occur between U-550 measurement and true tension in the range of Note1
and Note3. So it is not necessary to set a tension compensating rate.
Note1）As for the measuring installation tension, set the belt on the machine first and measure the average tension of stretch and loose side
of the belt after spinning several times to make the machine run smoothly. If both spans have the difference of more than 30%, please
adjust them and measure again.
Note2）Measure with a span having the length more than 20 times the tooth pitch.
（Because a higher value than actual is showed at the short range to be affected by the rigidity of the belt itself.)
Note3）Set the tension range more than 1/3 of standard installation tension.
（Because a higher value than actual is showed at the low tension to be affected by rigidity of belt itself.)
Also by the measuring method of our tension meter, measurement in an extremely low tension range is sometimes impossible.
Note4）As for the special belt like a wide and back-ribbed belt on its back for conveying, the gap between the true tension value is presumed,
so that simple calibration is required for checking tension which needs comparative precision.
As for experienced machines install the belt following the procedure provided for a corresponding machine, it is capable of managing tension
by setting cycle numerical value which approved by U-550 afterward.
■ Main Body
■ Accessories
● U-550
● Option
● Power Supply: Two triple A batteries. Alkaline
battery is recommended.
● Overall Size: 160(H) × 59(W) × 26(26)
● Mass: 120g
● Temperature and humidity range for use and
storage: -10〜-50℃, 80%
(free from condensation)
１１. Specification of U-550
1） Flexible type sensor
・ Sensor outer diameter: 12.5mm
・ Total length: 170mm
・ Measurable frequency band: 10Hz〜5000Hz
2） Soft case for carrying
・ Capable of containing the body of tension meter,
flexible type sensor etc.
・ Total length: 170mm
・ Measurable frequency band: 10Hz〜5000Hz
3） Two triple A batteries
4） Operation manual of U-550
5） Operating procedure sheet for carrying
6） Inspection acceptance certificate
7） Warranty
8） Two USB connecting caps (one is for a spare)
9） Operating manual of application software for
U-550
＊Please use the MINI-B 5 as USB connector
1） Flat flexible sensor
・ Sensor outer diameter: Thickness10mm,
Width20mm
・ Total length: 170mm
・ Measurable frequency band: 10Hz〜5000Hz
2） Long arm sensor
・ Sensor outer diameter: 12.5mm
・ Total length: 350mm
・ Measurable frequency band: 10Hz〜5000Hz
3） Electromagnetic sensor
・ Total length: 1m
・ Measurable frequency band: 10Hz〜5000Hz
4） Cord type sensor
・ Sensor outer diameter: 12.5mm
・ Total length: 1m
・ Measurable frequency band: 10Hz〜5000Hz
u550_e_manual.indd 16
2020/12/08 16:18
