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Gates 508C Manual

Sonic tension meter
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Model 508C
Sonic
Tension
Meter
Manual
gates.com/stm

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Summary of Contents for Gates 508C

  • Page 1 Model 508C Sonic Tension Meter Manual gates.com/stm...
  • Page 2 Sonic Tension Meter Components 508C Meter Cord Sensor Optional Inductive Sensor Optional Flat Flexible Sensor...

  • Page 3: Table Of Contents

    Belt Installation Tension . . . . . . . . . . . . . . . . . . . . . . . 14 Tips on Using the Gates Sonic Tension Meter . . . . . . 14 Meter Re-Calibration for Non-Standard Belts .

  • Page 4: Important Warnings

    Thank you for purchasing the Gates Sonic Tension Meter . Please read this manual thoroughly to fully utilize all the functions of this meter Important Warnings • Do not drop this unit . Impact of any kind can result in damage .
  • Page 5 Cord type measurement sensor (microphone) standard . One-touch connector LCD screen with backlight “MEASURE” key Power key SPAN key WIDTH key MASS key (unit mass) UP DOWN buttons (frequency range selection) 0-button Select key (frequency range switching) Hertz key (switching frequency and tension) LED Indicator lights (Left: red...

  • Page 6: Operating Instructions

    Operating Instructions Attaching Sensor Each of the male and female connectors has a notch on the surface . Fit the connectors together at the notch and push them together . To disconnect, hold the collar on the sensor and pull out . Turn on the power Press the “Power”...
  • Page 7 Enter belt mass h h h Belt mass constants are provided on pages 11, 12, and 13 of this manual . Capacity available for input is from 000 .1 to 999 .9 grams/meter . Press the “MASS” key and enter numbers on the keypad . Make sure the decimal is placed correctly in the display panel .
  • Page 8 Enter the span length h h h h Capacity available for input is from 0001 to 9999 millimeters . The span length represents the distance between the contact points on adjacent sprockets/pulleys/sheaves . This distance may be measured directly, or it may be calculated from the formula below .
  • Page 9 The default setting is the “Standard” range and can be changed by pressing the “UP” and “DOWN” keys . To accept the highlighted range, press the “MEASURE” key . Note the letter in the upper left hand corner of the LCD display indicates the frequency range setting Pointer (5) on page 4;...
  • Page 10 “POWER” key again until the meter turns off . Now turn the meter on for normal operation . Data entered into the unit must still be in SI units of millimeters and grams . The capacity available for output is 99,900 Pounds force, Kilograms force, or Newtons .
  • Page 11 Optional Sensors The 508C Sonic Tension Meter comes equipped with a cord type sensor . The cord type sensor provides the most effective results . An optional flat flexible stick-type sensor allows one hand operation, but it is sometimes difficult to hold the meter and sensor still enough to maintain close and consistent clearance between the vibrating belt span and the sensor .

  • Page 12: Operating Theory

    Sonic Tension Meter Operating Theory When an impulse is applied to a belt span, it first oscillates in all modes of vibration, but the higher frequency modes decay faster than the fundamental mode . This leaves a continuous sinusoidal wave that is related to a specific belt tension;...

  • Page 13: Belt Mass Constants

    5M (5mm) ..... . .3 .0 8M (8mm) ..... . .4 .7 Gates Mectrol (Steel) ®...
  • Page 14 Gates Mectrol (Aramid) ® Long Length Urethane g/m Predator Singles ® XL ........1 .9 5VP .
  • Page 15 Hi Power II Dubl-V PoweRated ....g/m ® ® AA ........125 67 (3L) .

  • Page 16: Belt Installation Tension

    Gates Application Engineering at (303) 744-5800 . Tips on Using the Sonic Tension Meter The Gates Sonic Tension Meter is capable of measuring belt tension with greater accuracy and consistency than traditional methods . It should not, however, be expected to produce exacting results in every case .
  • Page 17 . Minimum recommended installation tension values are available for all belt sections from either drive design manuals or Gates Product Application Engineering . Attempting to measure belt tensions below these minimum recommended values should be avoided, as the meter may display “Error”...

  • Page 18: Meter Re-Calibration For Non-Standard Belts

    . Summary of Features • Model 508C - Product No . 7420-0508 • Includes cord type sensor - Product No . 7420-0206 . • 40 Memory Registers for Belt Constants •...

  • Page 19: Troubleshooting

    Gates Drive Design Manual Establish proper belt tension level based on knowledge and experience All Gates design tools are available www .gates .com/drivedesign Don’t Know What Constants To Enter Mass Constant Mass constants for all Gates belt...
  • Page 20 Symptom Cause To Correct Span Constant Span represents the length of the belt span being measured in mm The appropriate Span constant is provided on drive design printouts Can’t Obtain A Belt Tension Reading Sensor is too far Move sensor as close as possible away from belt sur- without interfering with vibrating belt face...
  • Page 21 Symptom Cause To Correct Belt span is long Tighten belt and frequency very Check to see if calculated belt fre- quency is below 50 Hz Artificially reduce belt span length using a block, etc . Use inductive sensor for span fre- quencies from 10 –...
  • Page 22 Press “Select” and toggle through data memory registers to select another data set The tension of a Mass constants for non-Gates belts non-Gates belt is must be derived experimentally being measured An unrelated com- Temporarily eliminate noise...
  • Page 23 Generate an accurate frequency signal for the meter to read using a signal generator Send meter to Gates for evaluation (for a fee) Belt span length The minimum span length recom- may be too short mended for synchronous belts is...

  • Page 24: Formulas

    Unit Conversion Formulas x 4 .4482 = N N x 0 .2248 = lb x 0 .4536 = kg x 2 .2046 = lb N x 0 .1020 = kg x 9 .8067 = N = Pounds force N = Newtons force = Kilograms force Inches x 25 .4000 = mm mm x 0 .0394 = inches...

  • Page 25: Warranty, Service, And Certification

    Gates warrants the meter to successfully operate for a period of two years from the date of manufacture: • Gates will repair or replace meters, at our discretion, at no charge within the warranty period . • Sensors are not warranted .
  • Page 28 .gates .com/stm For technical information on Model 508C: Phone: 303 .744 .5800 • Fax: 303 .744 .4600 • E-mail: ptpasupport@gates .com Gates Corporation • Denver, Colorado 80202 00981833 17898-C 5/14...

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