Page 1: Table Of Contents
Please read this manual thoroughly before for full use of functions. Contents P１１. Precautions ７. Unit mass table of the preinstalled belt ２. Brief summary, caution & check ８. Unit mass table of Gate Unitta P３ points for the failure Asia tooth shape timing belt ３. Measurement principle of U-550 P４９. The unit mass table of V belt P１1 made by Gates ４. Explanation of the parts of U-550 P５１０. The standard installation tension main body table of the GUA timing belt ５. Operation procedure of U-550 P７１１. Speciﬁcation of U-550 P１3 ６. How to input the data １２. Guarantee & Repair Guidelines P１4 ６-１ How to input the unit mass ６-２ How to input the belt width or the number of belts (ribs) ６-３ How to input the value of span length...
Page 2: Precautions
１. Precautions ■ 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. Danger Warning Caution Imminently dangerous Can cause break down, Injury or physical situation, such as death injury, and electric damages or severe injury shock Things the user must NOT do. Things the user must do. Warning Do not make strong impact or Do not break down or change. throw. ● Can cause breakdown and ﬁre ● Can cause injury Do not use this in a Do not put liquids such as ﬂammable environment. water or solvents on the meter. Do not use the sensor ● Can cause an explosion or the ﬁre in a wet or oily environment.
Page 3 Please turn oﬀ the power, Please measure the tensile immediately right after you force after conﬁrming the hear a thunder noise and machine has been turned oﬀ. move to a safety place. ● Can cause an electric shock Caution Avoid keeping at the place Do not use solvents (thinner where much humidity, dust and and benzene, etc.) for high temperature are present. maintenance. ● Can cause the break down Even though the arm parts of Do not put on an unstable the sensor are ﬂexible, do not place like a sloping table. bend at an acute angle. Please ● Can cause injury or breakdown 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 Do not leave or use this grab or twirl the cord strongly. sensor in the direct sunlight or high temperature place.
Page 4 ２. Brief summary, caution & check points for failure ■ Brief summary The sonic belt tension meter (U-550) is A sensor catches the produced the handy equipment which enables to eruption of sound wave by pick the belt measure the tension accurately by span. After that, the high processing analyzing sonic wave without touching. computer analyzes it and shows the result on the screen digitally. ■ Check points for the immeasurable state ［Failed to measure or the results were ﬂuctuated signiﬁcantly.］ ITEM PRESUMED PRESUMED CAUSE CONFIRMATION PONT "Error" shows up or ● Nothing shows ● "0" is entered to the unit mass, ● Check the entered data （ Input the measure mode up or only width & span the correct number） can not be engaged measuring ● Input the wrong frequency range ● The frequency displays, but the or the red light on. processing sign ● Measured frequency exceeds tension does not measure 5000Hz or below 10Hz ● Change the measurement shows up from the third time of ● Battery drain frequency range...
Page 5: Measurement Principle Of U-550 P４
３. Measurement principle of U-550 When we make a belt between pulleys Calculation To＝４ ×M×W×S ×f × １０２２ -９ vibrate by giving impact, it starts to （N） To ： Tension oscillate irregularly as seen in Fig.1, but （g/mm width × m length） M： Unit mass gradually it oscillates an inherent regular （mm/R） W ： Belt width or number of ribs （ wires） moves. （mm） S ： Measured span length The U-550 tension meter was created to （Hz） f ： Horizontal characteristic frequency address this phenomenon. In the past, ...
Page 6: Explanation Of The Parts Of U-550 P５ Main Body
４. Explanation of the parts of U-550 main body Sensor（Option） ●Cord type sensor Flexible arm sensor （Standard） One-touch connector OLED ●Flat ﬂexible sensor Sensor Span button Measure button ●Long arm sensor （Decision button） Power button 350mm Width button ●Electromagnetic sensor Mass button UP/DOWN button Select button （Call button of measured results） O/Range button Change a frequency range USB cable is not attached. Please use a commercial one.（Mini-B 5 type） Hz button （change a frequency ⇔ tension）（Left: Red, Right: Green） Power supply: Triple A type x 2 pieces One-touch There is the hollow of a dent, insert a convex connector at the top. connector To remove a connector, slide the joint part and pull out.
Page 7 Electromagnetic type This react to the electromagnetic vibration, unaﬀected by the neighboring noise, the measurement is possible under the vibration decrement early. However, an application such as the pasting of a thin magnetic ﬁlm or the magnetic paint is necessary for a measurement side in the case of a rubber belt. This cable connects U-550 with PCs, and transfer the measured data. USB cable for transfer ＊USB cable in NOT included in the package. Please use the MINI-B 5 pin. ...
Page 8: Operation Procedure Of U-550 P７
５. Operation procedure of U-550 Procedure Description Operation Display screen Choose an optimum sensor and ﬁx in the main body Set up the sensor. １ with one-touch connector. ２ Turn on power. POWER button − PUSH ３ Input No. by numerical keypad or SELECT button − PUSH select button. 【Number is forwarded sequentalty every time SELECT button is pressed. 00→0１→･･→38→39 EX: Select from 00 to No.02 →00→0１→0２→In addition, you can jump to any designated number by pressing a number with No ００→No ０１ numeric key. 】 No ０１→ No ０２ Selecting procedure １ SELECT button − PUSH （1st time） No ００→No ０2 ...
Page 9 HIGH HIGH ： Above the setting GOOD ： Within setting range LOW ： Below the setting Shows the result of To call the latest 500 records, press SELECT measurement. button more than a second on the SELECT screen. SELECT button − PUSH Shows measurement frequency, tension, unit mass at the measurement. Go back to the select screen. ＊To erase the measured date can be cleared collectively when it connects with PC. Individual deletion can be performed on the main unit. Method Push 「6」 button : Selection. Push 「4」 button : Deselection. Press 「0」 button more than a second : Delete. ＊ Please check the U-550 application software manual for how to export the data to PC. ...
Page 10: How To Input The Data
（mm） Flat timing g/mm W ×mL ｍｍ C ：Distance between axes （mm） belt Dp ：Large pulley pitch outer diameter（mm） Number of V-Ribbed belt g/Ribbed ×mL Ribbed dp：Small pulley pitch outer diameter（mm） g/one belt ×mL V belt g/one belt ×mL Wire Note: Unit mass of U-550,U-508, U -507, and U-505, U-305 is 10 times 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 measured frequency on the screen）...
Page 11: Unit Mass Table Of The Preinstalled Belt
Polychain14MGT 5MPF Polyﬂex5M Ⅱ EV8YUC EV8YU Carbon EV14M2 7MPF Polyﬂex7M Steel cord ＊-S Ⅱ EV8YU2 3VXPB 3VX Powered band 11MPF Polyﬂex11M Gates TPU belt ８. Unit mass table of Gate Unitta Asia tooth shape timing belt ■ Table2: For U-550,508, 507 and U-505, 305 unit mass table Data of unit mass can be input by four signiﬁcant digits, i.e. three digits of integer and one digit below decimal point in g/mm W x m L from 0.1 to 999.9 g/mm W x m L. ● List of timing belt unit mass Timing belt Tooth shape XXL （50） Pitch（mm） 2.032 3.175 5.080 5.080 9.525 9.525 12.700 12.700 22.225 31.750 Unit mass 11.1 14.8...
Page 12 ９. The unit mass table of V belt made by Gates ■ Table 3: Specialized unit mass table for U-550,508, 507, 505, 503 The V belt has high comparative rigidity, the gap of revision is necessary for the actual and measured tension value in the range of the standard installation tension. Therefore, it should be adopted as WEIGHT level which is calculated by the following; [M (g/m length) = Mass per meter length of one rib (g/m length) x Tension correction factor] 1 Super HC type Input item 3VX Single 3VX Power band 5VX Single 5VX Power band 8V Single WEIGHT (Mass x compensation) 68.0×0.88＝59.8 87.0×0.87＝75.7 182.0×0.91＝165.6 237.0×0.89＝210.9 657.0×0.8＝525.6 coeﬃcient per 1 rib 1m length 2 Polyﬂex type Input item WEIGHT (Mass x compensation) 11.0×0.95＝10.5 27.0×0.95＝25.7 56.0×0.93＝52.1 coeﬃcient per 1 rib 1m length 3 Micro V type Input item J section PK section L section WEIGHT (Mass x compensation)
Page 13 １０. The standard installation tension table of the GUA timing belt 1 Timing Belt Unit （N） Width 12.7 19.1 25.4 38.1 50.8 76.2 101.6 127.0 （mm） Tooth （025）（031）（037）（050）（075）（100）（150）（200）（300）（400）（500） Shape 10.3 11.8 13.7 19.6 24.5 52.0 87.3 123.0 1050 1430 2020 1120 1750 2480 3210 2 GT&HTD Belt Unit （N） Width Tooth （mm）...
Page 14 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. １１. Speciﬁcation of U-550 ■ Main Body ● Power Supply: Two triple A batteries. Alkaline ● Mass: 120g battery is recommended. ● Temperature and humidity range for use and ● Overall Size: 160(H) × 59(W) × 26(26) storage: -10〜-50℃, 80% (free from condensation) ■ Accessories ● U-550 1） Flexible type sensor 3） Two triple A batteries ・ Sensor outer diameter: 12.5mm 4）...
Page 15 12. Guarantee & Repair Guidelines 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.
Page 16 U-550 MANUAL̲V01 HEAD OFFICE 4-26 SAKURAGAWA 4-CHOME, NANIWA-KU OSAKA 556-0022.JAPAN TEL:06-6563-1284 FAX:06-6563-1285...

Gates Unitta Asia U-550 Operation Manual

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Summary of Contents for Gates Unitta Asia U-550

Page 1: Table Of Contents

Page 2: Precautions

Page 5: Measurement Principle Of U-550 P４

Page 6: Explanation Of The Parts Of U-550 P５ Main Body

Page 8: Operation Procedure Of U-550 P７

Page 10: How To Input The Data

Page 11: Unit Mass Table Of The Preinstalled Belt

Table of Contents