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Danger

■ Please read this precautions carefully. And Keep this manual  

  safe for future reference.

■ These precautions are written to defend the user to keep    

  other people from harm, and to prevent other damages.    

  Please pay attention to these precautions. 

■ These signs indicate the level of danger which can be      

  expected by improper use.   

 

 

1. 

Precautions

Imminently dangerous 
situation, such as death 
or severe injury

Warning

Can cause break down, 
injury, and electric 
shock

Caution

Caution

Injury or physical 
damages

Things the user must NOT do.

Things the user must do.

Avoid keeping at the place 
where much humidity, dust and 
high temperature are present.

● Can cause the break down 

 

Do not leave or use this 
sensor in the direct sunlight 
or high temperature place.

Do not put on an unstable 
place like a sloping table.

● Can cause injury or breakdown

Please measure the tensile 

force after confirming the 

machine has been turned off.

Do not make strong impact or 
throw.

● Can cause breakdown and fire

Do not use this in a 
flammable environment. 

 

 

● Can cause an explosion or the fire  

  when using this near propane gas 

  or gasoline 

Do not break down or 

change.

● Can cause injury

Even though the arm parts of 
the sensor are flexible, do not 
bend at an acute angle. Please 
do not bend it close to the 
head of the sensor (within 
20mm from the sensor), and 
also do not bend it at the 
bottom of the sensor. Do not 
grab or twirl the cord strongly.

Please turn off the power, 

immediately right after you 

hear a thunder noise and 

move to a safety place. 

 

 

 

 

 

● Can cause an electric shock

Do not put liquids such as 
water or solvents on the 
meter. Do not use the sensor 
in a wet or oily environment.

Do not use solvents (thinner 
and benzene, etc.) for 
maintenance.

Warning

u550_e_manual.indd   4

2020/12/08   16:18

Summary of Contents for U-550

Page 1: ...preinstalled belt How to input the belt width or the number of belts ribs How to input the value of span length Unit mass table of Gate Unitta Asia tooth shape timing belt The unit mass table of V bel...

Page 2: ...uation such as death or severe injury Warning Can cause break down injury and electric shock Caution Injury or physical damages Things the user must NOT do Things the user must do Do not make strong i...

Page 3: ...r con rming the machine has been turned o Even though the arm parts of the sensor are exible do not bend at an acute angle Please do not bend it close to the head of the sensor within 20mm from the se...

Page 4: ...enness of the output level is large Nothing shows up or only measuring processing sign shows up from the third time of measurin Frequency mode The measured value changes every time greatly The sensor...

Page 5: ...ment displayed is somewhat higher than the actual tension under the a ected condition Therefore it is possible to obtain correction factor by strict calibration test and incorporate it to the data inp...

Page 6: ...Change a frequency range 9 UP DOWN button 5 OLED This displays tension value 3 S No 00 M 9 9 9 9 g m W 9 9 9 9 mm R S 9 9 9 9 mm S No 00 2GT TENSION 99900 N Measurement frequency level H HIGH S STAND...

Page 7: ...ton Press SPAN button for putting the width of the belt span numeric key 7 Hz button switching frequency and tension Press Hz button for selecting frequency or tension The mode changes every time this...

Page 8: ...of blinking position on display screen by use of numeric key If you input wrong number press MASS button again to return the cursor to the rst button PUSH button PUSH button PUSH button PUSH MASS but...

Page 9: ...hows tension Indication example for upper lower limit are set However please match indication with tension indication frequency indication when you set the tension level frequency The upper lower limi...

Page 10: ...imes the input of conventional type U 303 since the input unit has been changed Therefore when a value is input in conventional unit mass g cm2 measured tension is displayed in 1 10 No change for the...

Page 11: ...th shape timing belt Note Input with a value 10 times as large as a unit mass listed g cm used in U 303 out of sales model 1 5GT 2GT 3GT D3GT 5GT EV5GT EV5GTC D5GT 8YU 0 9 1 3 2 5 2 5 4 0 4 0 3 8 4 3...

Page 12: ...Input item J section 9 0 0 95 8 6 L section 32 0 0 95 30 4 PK section 21 0 0 95 20 0 Input item A 120 0 0 86 103 2 B 200 0 0 83 166 0 C 360 0 0 83 298 8 D 660 0 0 81 534 6 E 1020 0 0 72 734 4 The V be...

Page 13: ...20 15 12 21 25 30 36 40 50 62 70 60 80 37 30 20 40 50 60 68 70 80 100 115 90 125 130 Width mm Width2 shape type Tooth Shape MXL 3 2 4 8 6 4 025 031 037 050 075 100 150 200 300 400 500 7 9 9 5 2 9 5 1...

Page 14: ...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 after...

Page 15: ...ch you purchased for the repair See the enclosed warranty When the o cial approval is required direct the sensor to a communicator which emits stable frequency sound from 10 to 5000 Hz and measure the...

Page 16: ...U 550 MANUAL V01 HEAD OFFICE 4 26 SAKURAGAWA 4 CHOME NANIWA KU OSAKA 556 0022 JAPAN TEL 06 6563 1284 FAX 06 6563 1285 u550_e_manual indd 1 2020 12 08 16 18...

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