TensionRite® Belt Frequency Meter
Contents
1. 0 031 c E 0 066 Bess 0 099 T 0 144 WEDGE TORQUE TEAM Pitch Belt Mass kg m INA 0 096 x of ribs DE 0 217 x of ribs ON 0 103 x of ribs D scenes 0 249 x of ribs 8 0 598 x of ribs TORQUE TEAM PLUS Pitch Belt Mass kg m BVF essers 0 242 x of ribs OVF aara 0 615 x of ribs HY T TORQUE TEAM Pitch Belt Mass kg m B onde 0 216 x of ribs D ens 0 367 x of ribs 0 755 x of ribs Bo ascia 0 213 x of ribs o PR 0 344 x of ribs 22 TENSIONRITE BELT FREQUENCY METER Appendix 2 0 Theory of Operation The vibration frequency of a plucked string is dependant upon the tension of that string As the tension is increased the vibration frequency also increases Laboratory investigations show that power transmission belts react in a similar manner Data indicates that there is a direct relationship between belt tension and a belt s natural frequency of vibration This relationship holds true except for the very extreme high tension zones well above where any belt system can operate Using load cells and accelerometers while applying Newtonian law the linkage between strand tension and natural vibration frequency has been defined It was found that unlike with string the mass of a belt does play a role in the results The relationship between tension and frequency has been determined to be T 4m2. 0 127 5V SPB 0 207 Torque Team 5 0 249 x ribs 5VX XPB 500 1740 1741 3000 7 1 10 9 B 5VX XPB 0 169 5V SP 11 8 16 0 500 1740 1741 3000 8 3 14 3 Torque Team 5VX 0 217 x ribs 488 6 323 8 525 4 349 4 450 2 298 2 511 0 338 2 SPC 0 353 14 4 20 1 SPC XPC 200 850 851 1500 12 5 17 0 621 4 413 4 661 4 439 0 592 6 395 8 722 2 477 4 XPC 0 289 779 3 518 5 628 9 419 3 8V 0 581 200 850 851 1500 18 0 22 4 200 700 701 1250 1251 1900 1901 3000 7 1 10 9 937 7 624 1 833 7 555 3 8V 0 598 x ribs Torque Team 5VF 0 242 x of ribs 200 700 11 8 16 0 701 1250 1251 2100 200 500 501 850 851 1150 1151 1650 12 5 20 0 1008 4 861 2 781 2 Torque Team 739 6 8VF 0 615 x of ribs 200 500 501 850 851 1200 21 2 25 0 1517 2 1405 2 1304 4 Multiply table values by the number of torque team ribs to achieve recommended tensioning value For drives where hub loads are critical high speed drives or other drives with special circumstances the belt deflection force and strand installation tension should be calculated by using formulas found in existing Engineering Manuals or use the Maximizer Drive Selection Analysis Program Consult the TensionRite Belt Frequency Meter manual for detailed information on using the frequency
3. 0 014 0 023 0 50 0 047 0 79 0 071 LOO 0 094 079 0 083 0 111 un 0 167 2 0 222 300 seen 0 333 2 00 0 549 0 823 4 00 1 098 AA Goss 200 0 782 S DU sin 1 172 4 00 1 563 1 954 Super Torque Pd Pitch Belt Mass kg m S3M 0 061 x inch width 54 5 0 090 x inch width SM ius 0 100 x inch width 58 0 143 x inch width 514 0 298 x inch width TERES UWE Nex DUAL Hi Performance Pd Pitch Width Belt Mass kg m DUAL trapezoidal Pitch Width Belt Mass kg m 0 028 OS 0 040 Licenses 455 0 mm 0 053 POLY V9 Pitch Belt Mass kg m 0 009 x of ribs weigh actual belt Ends 0 041 x of ribs 0 154 x of ribs 21 Pitch Belt Mass kg m OV 0 086 OY 0 207 BV 0 581 0 073 0 169 0 561 HY T PLUS Pitch Belt Mass kg m 0 100 0 162 0 296 0 671 TORQUE FLEX Pitch Belt Mass kg m BA 0 080 0 161 0 290 HEX double V Pitch Belt Mass kg m 0 137 EB 0 238 0 407 0 602 Pitch Belt Mass kg m
4. where T belt tension in newtons N m mass per unit length expressed as kilograms meter kg m 2 span length in meters m f vibration frequency in Hertz Hz String theory ignores flexural stiffness A belt does have some stiffness so the calculated tension for a given frequency will be slightly higher than the actual tension For belt spans greater than 0 25 the above equation will provide results within 10 of the actual values Beam analysis may give improved accuracy but the required inputs are generally too cumbersome for field application The TensionRite Belt Frequency Meter is a dual function tool The optical sensing head uses an invisible infrared beam to detect vibration while the integral calculator determines the time base and performs the necessary calculations to support the results shown in the display window The Goodyear Engineered Products TensionRite Belt Frequency Meter may be used with a power transmission belts regardless of type or construction 23 TENSIONRITE BELT FREQUENCY METER Appendix 3 0 Frequently Asked Questions FAQ am more comfortable using inches and pounds rather than millimeters and newtons Why SI units Belt tensioning became particularly critical with the advent of 2 generation synchronous belts All such belts are of metric design with the tooth pitch width and length specified in SI System International d Unites units It follows that tools for use with such belts
5. 1901 3000 200 700 11 8 16 0 701 1250 1251 2100 200 500 501 850 851 1150 1151 1650 200 500 21 2 25 0 501 850 The table deflection forces and strand tensions are typically at maximum values to cover the broad range of loads RPM and pulley combinations for all possible drives 851 1200 Belt Strand Tension Ibs Smallest Sheave Diameter Range RPM Range 20 35 100 2500 2 Noncogged Single Torque Team amp Cogged Single amp Torque Team Plus Torque Team Belt Belts Weight kg meter NEW USED NEW USED m BELT BELT BELT x 76 860 2500 2501 4000 860 2500 2501 4000 B BX 860 2500 2501 4000 500 1740 1741 3000 Torque Team 0 213 x ribs Torque Team 213 4 143 0 272 6 183 0 C 0 367 x ribs 500 1740 C CX 9 5 16 0 1741 3000 200 850 851 1500 12 0 16 0 328 6 218 2 368 6 247 0 Torque Team 288 6 192 6 338 2 226 2 CX 0 344 x ribs 581 9 388 3 490 7 329 1 200 850 851 1500 18 0 20 0 1000 2500 2501 4000 2 2 2 4 713 1 476 3 597 9 399 5 D 0 755 x ribs 3V 0 086 1000 2500 2501 4000 2 65 3 65 3VX XPZ 0 073 3V 3VX XPZ 4 12 6 90 1000 2500 2501 4000 Torque Team 3VX 0 096 x ribs SPA 0 155 SPA XPA 500 1749 1750 3000 3001 4000
6. Limitation of Warranty Veyance Technologies Inc and its affiliates exclude any further liability for software handbooks and information material Furthermore Veyance Technologies does not accept liability for damages resulting from the use of the TensionRite Belt Frequency Meter VEYANCE TECHNOLOGIES S TOTAL RESPONSIBILITY AND LIABILITY FOR ANY AND ALL CLAIMS LOSSES AND DAMAGES OF ANY KIND WHATSOEVER ARISING OUT OF ANY CAUSE WHATSOEVER WHETHER UNDER ANY WARRANTY OR BASED IN CONTRACT NEGLIGENCE OTHER TORT STRICT LIABILITY BREACH OF WARRANTY OTHER THEORY OR OTHERWISE SHALL NOT EXCEED THE ORIGINAL PURCHASE PRICE OF THE TENSIONRITE BELT FREQUENCY METER IN RESPECT TO WHICH SUCH CAUSE ARISES AND IN NO EVENT SHALL VEYANCE TECHNOLOGIES BE LIABLE FOR SPECIAL INCIDENTAL CONSEQUENTIAL EXAMPLARY OR PUNITIVE DAMAGES RESULTING FROM ANY SUCH CAUSE NO EMPLOYEE AGENT AND OR REPRESENTATIVE HAS AUTHORITY TO MAKE ANY REPRESENTATION PROMISE OR AGREEMENT EXCEPT AS STATED HEREIN VEYANCE TECHNOLOGIES SHALL NOT BE LIABLE FOR AND CUSTOMER ASSUMES ALL LIABILITY FOR ALL PERSONAL INJURY AND PROPERTY DAMAGE CONNECTED WITH THE USE OF THE PRODUCT THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF AND VEYANCE TECHNOLOGIES DISCLAIMS WARRANTY OF FITNESS FOR PURPOSE OR ANY OTHER IMPLIED WARRANTIES Notice All rights especially for copying and distribution as well as translation of this material are reserved and require written con
7. 185 137 0 069 8MBH22 8 35 539 379 379 267 299 219 0 159 x 8MBH35 8 928 656 656 464 512 368 0 226 8 60 14MBH 20 553 393 409 297 345 249 0 164 S 1 20 14 42 1167 831 863 623 735 527 0 344 x 14MBH 42 Q 1 5 1796 1284 1348 964 1140 804 0 532 9 14 65 m 14MBH 90 2487 1783 1863 1335 1575 1127 0 737 14MBH 90 14MBH 120 3332 2372 2484 1764 2084 1492 0 983 14 120 8M 20 226 162 194 146 178 130 0 118 8M 20 8M 30 347 251 299 219 283 203 0 176 8M 30 8 50 590 430 526 382 478 350 0 289 8 50 8M 85 1046 742 918 662 838 598 0 507 8 85 14 40 715 507 571 411 475 347 0 438 14 40 14 55 1069 765 845 605 717 509 0 583 H 14M 55 I 14M 85 1778 1266 1410 1010 1186 850 0 913 I 14M 85 14M 115 2486 1782 1974 1414 1654 1174 1 233 14M 115 14M 170 3827 2739 3059 2179 2579 1843 1 835 14M 170 1 The table deflection forces and strand tensions are typically at maximum values to cover the broad range of loads RPM and pulley combinations for all possible drives 2 For drives where hub loads are critical high speed drives or other drives with special circumstances the belt deflection force and strand installation tension should be calculated by using formulas found in existing Engineering Manuals or use the Maximizer Drive Selection Analysis Program 3 Consult the TensionRite Belt Frequency Meter manual for detailed information on using the
8. Range Frequency Range Measurement Accuracy Below 1 7 Above 1 7 Belt Mass input range Belt Span input range Maximum Belt Tension display Environmental conditions Operating Temperature Shipment amp Storage Temp Protection Classis repeat rrr Rn rn hern aa Sensor Type IR Wavelength Visible Aiming Beam Housing Cable length Power Supply Type Voltage rm Battery Type Number Expected life Compartment location Optional Rechargeable Batteries 10 to 400Hz 1 significant digit 1 0 001 to 0 990kg m 0 001 to 9 990 meters 9990 newtons 2200 pounds 10 to 50 50 F to 122 5 to 70 23 F to 158 F Infra red Optical 970mm Narrow angle orange LED Machined Aluminum 1 meter Dry Cell Battery 6 volt AA MN1500 Alkaline AA 1300 mAH min 12 15VDC output 3 5mm OD positive center 18 TENSIONRITE BELT FREQUENCY METER 10 0 Formulas amp Conversions Force Conversion Constants newtons x 0 2248 pounds poundsf x 4 4482 newtons kilograms x 9 8067 newtons Length Conversion Constants inches x 0 0254 meters meters x 39 3701 inches mm x 0 001 meters Span Length Calculation D D d 4 3 10 where S Span Length mm CD Center Distance mm D Large Pulley Diameter mm d Small Pulley diameter mm Weight for Mass calculation use ounces x 0 02835 kilograms poun
9. acceptable There is no adjustment possible If greater variance is experienced meter should be returned for recalibration See Section 8 2 for recalibration return procedures 16 TENSIONRITE BELT FREQUENCY METER 8 0 Calibration 8 2 Annual Certification Technical support relating to calibration certification and or operation of the TensionRite Belt Frequency Meter be obtained from the manufacturer at techsupport clavis co uk phone 011 44 191 2627869 fax 011 44 191 2620091 The meter may be returned to the manufacturer for repair or recalibration at any time A factory calibration certificate is included with each meter Although the very stable solid state quartz crystal based system is not likely to go out of calibration some operating procedures call for annual gauge certification For certification calibration purposes the meter may be returned to the manufacturer at yearly intervals to have the meter recalibrated and certified to NAMAS UKAS National Accreditation of Measurement and Sampling United Kingdom Accreditation Standards standards The manufacturer must be contacted for detailed cost and shipping procedures prior to any return Contact information for Integrated Display Systems Limited Clavis is shown in Appendix 5 0 There will be a charge for these services 17 E B EQ N W le ix 9 0 Technical Specifications Measurement
10. based tension gauge 4 Goodyear Engineered Products offers three different levels of tension gauges to aid you in properly tensioning your power transmission belts See your Goodyear EP sales representative or your local authorized Goodyear EP Power Transmission distributor for more information on the Goodyear EP tensioning gauges 29 TENSIONRITE BELT FREQUENCY METER Appendix 5 0 Limited Warranty Limited Warranty Time of warranty is 12 months from date of original purchase provided that proper product registration has been completed Product registration may be completed online at www clavis co uk gytensionritemeter Warranty covers defects in materials and workmanship for the device only Warranty does not cover accessory items such as batteries and applies only to parts that were not damaged as a result of inappropriate handling or use The warranty expires immediately if the device itself is opened Unit must be returned to Integrated Display Systems Limited IDS also known as Clavis for evaluation of all warranty claims Any TensionRite Belt Frequency Meter claimed to have a covered warranty condition involving material or workmanship shall upon Clavis s approval be returned to Clavis as designated at the Customer s expense Under no circumstances will liability exceed the original purchase price of the meter Clavis reserves the right to repair or replace the unit or to refund the original purchase price at their sole option
11. for further information Will tramp IR signals from other systems affect the operation of the TensionRite Belt Frequency Meter The answer is a definite no The amount of environmental IR reaching the sensor which has a narrow beam of only 15 degrees is very small when compared with the IR signal from the sensor emitter that is reflected from the belt In addition the meter uses a technique called synchronous demodulation to recover the reflected belt signal while rejecting all external signals not modulated in synchrony with the meter Will tramp signals from the TensionRite Belt Frequency Meter affect other equipment using IR communication It is not possible to give a definitive universal statement on this topic It depends primarily upon the quality of the third party equipment Again the narrow beam in addition to the very low energy of that focused beam make it highly unlikely that the signal from the TensionRite Belt Frequency Meter will interact with any other device If this is a concern in your location a carefully controlled trial is suggested prior to releasing the device for general use in your facility Is the TensionRite Belt Frequency Meter rated as intrinsically safe as defined by International Standard IEC 60079 11 The TensionRite Meter does not qualify for 1 5 certification As such the meter is not to be used in locations with potentially explosive atmospheres The meter circuitry generally complies with the technical req
12. harvest accurate tension values in units of force rather than frequency you must know the belt mass constant for your actual belt How do determine belt mass short of contacting a manufacturer There is no secret to belt mass It is defined as the unit weight of the belt or the linear belt mass and is expressed in kg m So simply weigh the belt on an accurate scale such as a postage scale convert that weight to kilograms then divide the result by the length of the belt expressed in meters For example say you have a generic synchronous belt of part number 1280 8M 50 8mm pitch 50mm wide 1280mm long Your postage scale says the belt weighs 9 9 ounces Your calculations become 9 9 ounces x 0 02835kg per oz 0 281kg conversion constant from chart 1280mm x 0 001 1 28 metric convention 0 281kg 1 28m 0 2195kg m roundto Mass 0 220kg m This is the number to then input as Belt Mass We are being asked to comply with some new environmental regulations called RoHS Restrictions on Hazardous Substances What is the status of the TensionRite Belt Frequency Meter in relation to RoHS The manufacturer of the TensionRite Belt Frequency Meter states that they are in full compliance with the restricted materials listed in the Directive 2002 95 EC of the European Parliament and the Council of 27 January 2003 commonly referred to as RoHS 26 TENSIONRITE BELT FREQUENCY METER Can the TensionRite Belt Frequency Meter be u
13. obtained with the sensor held square to the target surface at a distance of 3 8 In practice valid readings have been taken at distances up to 2 and at angles varying from vertical to plus minus 45 degrees Does the sensor need to be aimed at the exact center of the span Let specific drive conditions be your guide Best shop practice is to take your reading as close to the span center as is practical A strummed belt vibrates with the same frequency everywhere along the unsupported span The amplitude of vibration is greatest in the center of the span degrading geometrically as the tangent points sprocket or pulley contacts are approached Bigger features are generally the easiest to see think eye chart The TensionRite Belt Frequency Meter is an optical system so the best reading is taken directly above the center of the span although on most belts valid and accurate readings can be achieved almost anywhere along the belt span 24 TENSIONRITE BELT FREQUENCY METER Sometimes have trouble getting a reading on a narrow belt such as a Torque Flex 4X any suggestions Best shop practice is to orient the sensor with the long edge of the sensor parallel to the centerline of the belt There may be a slight difference in focus between the aiming LED and the infrared beam at the distance you happened to be holding the sensor Orienting with the long edge parallel to the belt centerline simply provides a larger target area thus easing the
14. should also utilize the SI system While the TensionRite Belt Frequency Meter requires span and mass inputs to be made in SI units the output can be toggled to pounds force if you wish Conversion factors for English to SI and SI to English are also shown in the TensionRite Belt Frequency Meter User Manual Which is the best span to use when tensioning a multi span drive a dR with more than one dN Best practice is to use the longest span that can be readily accessed Using too short a span can compromise accuracy The natural frequency of a span should be between 10 Hz and 400 Hz to be properly read by the TensionRite Belt Frequency Meter It is highly unlikely that your drive will be outside this window However if the measured frequency is below 10 Hz choose a shorter span If the measured frequency is above 400 Hz chose a longer span What constitutes too short a span and why Let s start with the why part of your question Transverse vibration of string theory the science behind frequency based tension measurement overlooks the rigidity of the string Although hard to quantify belts have considerable internal rigidity stiffness The shorter the span the greater is the effect of this stiffness in dampening both the natural frequency and amplitude of strand vibration The effect is that belt tension in a short span is lower than the vibration frequency would indicate measured results are much higher than actual belt conditions
15. 2 POWER SON IP ik Db WG 1 s GOODS YEAR TENSIONRITE TENSIONRITE BELT FREQUENCY METER Table of Contents SECTION Em 2 0 Device lt 5 eir Terbo Eres 4 0 Functions DU cm 4 2 Audio Visual Display 4 3 Optical Sensor usa 4 4 Battery 4 5 Charging Batteries 5 0 Setup amp Use Procedure 6 0 Operating 7 0 8 0 Calibration NEMO Ee 1 e CERO 8 2 Annual Certification 9 0 Technical Specifications 10 0 Useful Formulas amp Conversions Appendix 1 00 Belt Mass Constants 2 0 Theory of Operation o FAU PEN 4 0 Tensioning Tables 5 0 Limited Warranty TENSIONRITE BELT FREQUENCY METER 1 0 GENERAL SAFETY TIPS SAFETY FIRST Read and understand this manual before operating the TensionRite Meter Do not drop meter or subject either meter or optical sensor to other sharp impact Do not put water solvents including cleaning solutions or any other liquid on the unit Clean meter and sensor with a dry cotton cloth Do
16. IONRITE BELT FREQUENCY METER This key has two functions The first is to decrease either the SPAN or MASS parameters when used in conjunction with those keys The second use is to toggle between the Hz and the pounds force measurement modes If this key is pressed while either the SPAN or MASS keys are being held down the number shown in the display window will decrease in value If only this key is pressed the display will automatically toggle between frequency and pounds The calculation of the force in pounds will be based upon the mass and span constants currently in the active register The memory keys allow up to three sets of belt parameters to be stored in the meter registry Pressing the MEM 1 key recalls the first set of belt parameters and likewise for MEM 2 and MEM 3 To store the belt parameters to a key the belt span and mass parameters must first be entered and then immediately after release of either the SPAN or MASS keys the selected MEM key should be pressed Two beeps indicate that the parameters have been successfully assigned to the key To use the stored span and mass constants simply press the desired key prior to taking a measurement To check if you have the correct values you may press the SPAN or MASS keys and the current constant will show in the display window TENSIONRITE BELT FREQUENCY METER 4 0 Functions 4 2 Audio Visual Display The TensionRite Belt Frequency Meter is an interactive too
17. To limit such error there have evolved some informal guidelines for the most common belt constructions For synchronous belts toothed belts the recommended minimum span length is defined as greater than 20 times the tooth pitch For example an 8mm pitch belt would require a minimum span of 160mm approximately 6 3 to yield reliable frequency based tension data For V belts the recommended minimum span length is about 30 times the belt top width These are guidelines or rules of thumb that have evolved over time It is the link between frequency and tension as well as the optical signal that degrades as these minimums are approached A practical test is to take several reading from 3 to 5 repeats under identical conditions If the results vary wildly or if frequency exceeds 400Hz top of Meter range you need to select a longer span If you have concerns about a specific drive you should contact Goodyear Engineered Products Technical Support or your local Goodyear EP Distributor Telephone or e mail contact information for Goodyear EP s Technical Support is given in the User Manual What if cannot access the top surface of the belt span selected If the flat face of the belt is not accessible it may be possible to beam the sensor onto the edge of the belt to take your measurement The inside surface toothed side of a synchronous belt is equally acceptable as a target for the sensor Regardless of the surface selected the best readings are
18. any data stored by the memory keys Batteries are expected to provide approximately 20 hours of continuous operation before replacement is required Dispose of old batteries in an environmentally sensitive manner as prescribed by the battery manufacturer In no case should the batteries be disposed of in open flame 10 TENSIONRITE BELT FREQUENCY METER 4 0 Functions 4 5 Charging Batteries IMPORTANT Do not charge batteries with the sensor head attached to the meter Do not attempt to use the meter while batteries are being charged Damage to the optical sensor could result The TensionRite Belt Frequency Meter is compatible with user supplied rechargeable batteries and recharging unit A convenient 3 5mm positive center charging socket is located on the bottom end of the meter body adjacent to the sensor cable plug in port e Batteries 1300 mAH minimum user supplied e Charging unit 12 to 15 volt DC output user supplied Connection 3 5 O D positive tip mini plug socket The built in circuit of the meter controls the charging current automatically providing a fast and a trickle charge Charging current is internally limited to 100 mA Charging time is typically 12 14 hours for a full charge You may turn the unit on while charging The meter s software will then signal that the batteries are charging The display window will flash an array of zeros starting with only one and progressing to four Ther
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20. ds x 0 45359 kilograms Reminder Belt span and belt mass inputs to the meter must be in SI units meters for the belt span and kg m for the belt mass 19 TENSIONRITE BELT FREQUENCY METER Appendix 1 0 Belt Mass Constants Belt Mass is defined as weight per unit length and is expressed as kilograms per meter kg m HAWK Pd9 Pitch Width Belt Mass EAGLE Pd kg m Pitch Width Belt Mass OMIM 0 034 kg m LIM cus 0 057 8M Yellow 0 071 0 095 White 0 142 8M 20mm 0 118 Purple 0 283 SOM sss 0 176 14 Blue saturates 0 254 0 289 Green 0 380 85MM 0 507 Orange 0 507 14M 40mm 0 438 0 761 55mm ess 0 583 85MM si 0 913 115mm 1 233 170mm 1 835 FALCON Pd 20M m l Pitch Width Belt Mass 230mm 3 167 kg m 290mm 3 993 8M 12mm 0 064 340mm 4 681 21 0 112 36mm 0 192 62mm 0 330 14M 20mm 0 163 87mm s 0 301 BLACKHAWK Pd 68mm 0 550 Pitch Width Belt Mass 0 738 kg m 125mm 1 023 12mm sca 0 045 22mm 0 069 35miTi xs 0 159 60mm 0 226 14 20mm 0 164 120mm 0 983 20 trapezoidal Pitch Width Belt Mass kg m MXL DIM ases 0 006 D 19 0 009 29 0 010 KE D 259
21. e will be an audible signal of four beeps as the display changes Alternatively a separate battery charging station may be utilized Using two sets of batteries one set in use with the meter the other set in the charging station would ensure freshly charged batteries were always available Again batteries should have a minimum rating of 1300 mAH 11 TENSIONRITE BELT FREQUENCY METER 5 0 Setup amp Use Procedure 1 Plug sensor head into meter body This is a keyed plug Line it up do not use force 2 Turn unit on by pressing 0 3 Load span and mass data recall previously loaded data To load span data simply hold down while using E or to set the number When the correct number appears in the display window simply release the SPAN key The unit will beep once to acknowledge acceptance of this setting To load mass data simply hold down E while using I or E to set the number When the correct number appears in the display window simply release the MASS key The unit will beep once to acknowledge acceptance of this setting To save individual entries into memory press the appropriate memory key as soon as the span or mass keys have been released The meter will beep twice to acknowledge the entry into memory 12 E B EQ N W le To recall stored span and mass data simply press e or according to where you pr
22. ent conditions resulting in superior accuracy without the need for filters or manual tuning If the meter uses an infra red beam what is the lighted spot see on the belt The orange lighted spot is generated by a narrow angle LED Light Emitting Diode It is focused to the same area as is the infrared generator and is to be used as an aiming guide for the invisible infrared beam What about operator safety isn t an infrared beam really an invisible death ray Don t confuse the optical sensor with a laser Lasers are intensifiers that project a coherent beam parallel rays with low divergence and high brightness The result is a focused beam with very high energy density The sensor of the TensionRite Belt Frequency Meter uses the non coherent infrared output of a small low energy diode Do 1 need to input span length and belt mass parameters each time the meter is used Not necessarily If you are dealing with a drive on a regular basis the memory feature of the TensionRite Belt Frequency Meter may be to your advantage Up to three different sets of belt parameters can be stored in the meter each assigned to one of the three MEM keys The next time that particular drive is tensioned pressing the appropriate key will recall and load the belt mass and span information You can also eliminate completely the need for span and mass parameters by working directly with the belt vibration frequencies f measured in hertz Hz rather than with bel
23. es require periodic calibration and certification of measuring tools Are there such procedures for the TensionRite Belt Frequency Meter Yes there are The solid state circuitry of the TensionRite Belt Frequency Meter is based upon a very stable quartz crystal which requires no adjustment Included with your meter is a precision mechanical resonator fancy term for a tuning fork to allow a spot check at a frequency of 250Hz any time you wish See section Calibration in the User Manual for a depiction of the procedure Labeling the meter as a Process Aid coupled with performance of this spot check on a periodic basis might well satisfy your procedural requirements If more rigorous documentation is required the meter may be returned to the manufacturer at yearly intervals to have the calibration certified to NAMAS UKAS National Accreditation of Measurement and Sampling United Kingdom Accreditation Standards Such certification is generally acceptable for 1509001 The manufacturer must be contacted for detailed return procedure prior to sending the meter There will be a charge for this service The section Annual Certification in the TensionRite User Manual gives contact information for the manufacturer Will the meter work for other than Goodyear EP belt products Yes the TensionRite Belt Frequency Meter will give accurate results for belts from other manufacturers The frequency Hz measuring mode is immediately applicable In order to
24. etc are to be treated as a single unit with the mass constant calculated as a multiple of the single belt value see Belt Mass Constants uu TENSIONRITE BELT FREQUENCY METER 7 0 Meter Range The TensionRite Belt Frequency Meter is capable of measuring belt vibration frequencies between 10Hz and 400Hz If the measured frequency is below 10Hz the meter will display 10 00 briefly and then change to 000 0 If the measured frequency is above 400Hz the meter will display 400 briefly and then change to 000 If these limits are exceeded on a multi shaft three or more shafts system it may be possible to get valid measurements by selecting a different belt span for measurement If the measured frequency is below 1 2 choose an available shorter span If the measured frequency is above 400HZ choose a longer span if available It is possible to have a frequency reading that is within the meter s range but the calculated force numbers are beyond the meter s range The meter is capable of calculating belt tensions up to 9 990 newtons and 2 200 pounds force When these limits are exceeded the meter will react as follows 000 000 BEEP BEEP 000 newton reading accompanied by four BEEP beeps indicates the result is out of range BEEP 000 pound reading accompanied by four beeps indicates the result is out of range BEEP BEEP BEEP BEEP Belt tensions greater than these values are unusual It is therefo
25. eviously entered the values 4 Aim sensor at center of selected belt span Best practice is to orient sensor with the long edge parallel to the belt centerline as shown Best gap is approximately 1 Tap or pluck the belt Tapping the belt with the handle of a small tool such as a screwdriver is a good way to make the belt vibrate The meter will beep once to indicate that a measurement was taken 5 Display window will show frequency results 6 Press E to toggle results to newtons 7 Press to toggle results to pounds y 41 3 8 to 2 97 4 0225 N 0050 NOTE Pressing either toggle a second time will return display to the Hz value 8 Readjust belt tension and repeat measurement until target tension results are attained 13 TENSIONRITE BELT FREQUENCY METER 6 0 Operating Tips Here are some procedures and best practices that may ease use or help increase the reliability of your belt tensioning efforts LOCK OUT TAG OUT Take your tension reading as close to the center of the selected span as is practical Use the longest belt span that can be readily accessed Minimum useable span length is equal to 20 times the belt tooth pitch for synchronous belts and 30 times the belt top width for V configuration belts Using too short a span yields indicated tensions that may be much higher than actual belt tension due to effects of belt stiffness When possible orient the senso
26. frequency based tension gauge 4 Goodyear Engineered Products offers three different levels of tension gauges to aid you in properly tensioning your power transmission belts See your Goodyear EP sales representative or your local authorized Goodyear EP Power Transmission distributor for more information on the Goodyear EP tensioning gauges 28 TENSTONR ITE i ig b E B dE U le N e 4 0 Tensioning Tables V Belt Tensioning Tables Deflection Forces for Belt Tensioning Ibs Smallest Sheave Diameter Range Noncogged Single Torque amp Torque RPM Range Team Plus Belts USED NEW BELT BELT 1000 2500 2501 4000 Cogged Single amp Torque Team USED BELT Tu 1000 2500 2501 4000 1000 2500 2501 4000 860 2500 2501 4000 860 2500 2501 4000 860 2500 2501 4000 500 1740 1741 3000 200 850 851 1500 1000 2500 2501 4000 1000 2500 2501 4000 3VX 2 4 12 6 90 1000 2500 2501 4000 1000 2500 2501 4000 1000 2500 2501 4000 lt n 4 n 7 1000 2500 2501 4000 500 1749 1750 3000 3001 4000 5VX XPB B 500 1740 1741 3000 5V SP 8 3 14 3 11 8 16 0 500 1740 1741 3000 500 pos 100 SPC XPC 14 4 20 1 500 1000 1000 1750 200 850 851 1500 E 851 1500 200 700 701 1250 1251 1900
27. ither newtons or pounds force provided the operator has entered the belt mass and span length using the manually operated key pad The meter operates on four AA batteries Battery life is approximately 20 hours The battery compartment is accessible at the back of the meter An abridged manual a tuning fork for checking calibration and a storage case are included with the complete kit TENSIONRITE BELT FREQUENCY METER 3 0 Quick Start 2 Press to switoh meter on Following these simple steps will allow you to measure the vibration frequency of the belt This value is independent of span or mass values but is very useful as an index for belt system maintenance sometimes the only number you will need For example the MAXIMIZER drive analysis program gives tensioning targets in Hz as well as in force units newtons and pounds force For tensioning results in units of force follow the procedures defined in Section 5 0 TENSIONRITE BELT FREQUENCY METER 4 0 Functions 4 1 Keys This key switches the meter on or off If the meter is on and sits idle for more than 3 minutes it automatically switches off to preserve battery life When the meter is first switched on a battery check is made See Section 4 4 for a description of the visual and audible low battery signal This key is used to enter the belt span length Hold down the span key and use the UP or DOWN keys to set the belt span in meters Releasing the span
28. key results in an audible beep to indicate the setting has been accepted Pressing a MEM ory key immediately after releasing the SPAN key will load the span constant just entered into the appropriate memory register Pressing the SPAN key alone shows the current setting This key is used to enter the belt mass Hold down the mass key and use the UP or DOWN keys to set the belt mass in kilograms meter kg m Releasing the mass key results in an audible beep indicating that the setting has been accepted Pressing a MEM ory key immediately after releasing the MASS key will load the mass constant just entered into the appropriate memory register Pressing the MASS key alone displays the current setting Important Note Belt span and belt mass are required entries if tension results in force units newtons or pounds force are desired Entries must be in SI units meters and kg meter This key has two functions The first is to increase either the SPAN or MASS parameters when used in conjunction with those keys The second use is to toggle between the Hz and the newton measurement modes If this key is pressed while either the SPAN or MASS keys are being held down the number shown in the display window will increase in value If only this key is pressed the display will automatically toggle between frequency and newtons The calculation of the force in newtons will be based upon the mass and span constants currently in the active register TENS
29. l It provides both visual and audible communication with the operator Each signal or combination of signals has meaning While all these signals are discussed in other sections of this manual here will be presented a compilation of all the available signals Generally visual signals alone give measurement results while audible signals either alone or in combination with a visual signal indicate some operational step VISUAL MEASUREMENT RESULTS 0 isplayed in newtons Ibs 0 0 Tension displayed 00 ension displayed in pounds force A dark oval will appear to indicate the units associated with the number displayed gt Frequency mode results displayed hertz cycles sec OF r07 AUDIBLE SIGNALS Signal means pue Cs Upon release of Span key Input accepted Upon release of Mass ke Input accepted While sensor is aimed at vibrating belt Measurement taken Upon pushing memory key after Span data has been stored releasing Span ke releasing Mass ke Combined with 000 newton displa uu After pushing On key and combined Low battery condition with zero countdown TENSIONRITE BELT FREQUENCY METER 4 0 Functions 4 3 Optical Sensor The sensor uses an invisible infrared beam to detect vibrations of the belt A narrow angle orange LED generated beam is provided to guide the aiming of the sensor The very best signal from the belt is seen when the sensor is held
30. need for very precise aiming This suggestion also applies when taking measurements from the edge of a belt What are some of the advantages of the new TensionRite Belt Frequency Meter over the older sonic meter Accuracy reliability and ease of use are the primary benefits of the TensionRite Belt Frequency Meter The accuracy of measurement is largely determined by the method of measurement While both sonic and optical tension meters rely upon the same transverse vibration of string theory think tuning a violin to determine belt strand tension the two methods differ in how the frequency of vibration Hz is actually determined A sonic meter also know as an acoustical meter indirectly measures vibration It predicts vibration frequency based upon sensing disturbances in the pressure of the air essentially noise adjacent to the belt The sensor is really a specialized microphone Ambient conditions are a critical factor Background noise and air currents can and will affect the accuracy of this type sensor Some sonic meters incorporate internal filters in an attempt to counter stray inputs while other units include a gain adjustment for the sensor An optical meter directly measures belt vibration Using advanced solid state infra red technology the sensor actually sees the belt surface Any displacement of the belt is observed and the frequency of displacement over time is measured This method of direct measurement is unaffected by ambi
31. not pull on sensor cord Disconnect sensor from meter by grasping the connector grip only Do not leave the unit in places that are humid hot dust filled or in direct sunlight Hint When the TensionRite Meter is not to be used for a while remove the batteries and store unit in the case provided Do not use your TensionRite Meter in any explosive environment Do not disassemble or attempt to modify either the meter or the sensing head LOCK OUT TAG OUT Switch off and isolate any belt drive system prior to taking tension measurements or attempting any other installation work TENSIONRITE BELT FREQUENCY METER 2 0 Device Description Display Window LED see Section 4 2 Aiming Beam Key Pad see Section 4 4 Optical Sensor see Section 4 3 The TensionRite Belt Frequency Meter from Goodyear Engineered Products is a two component system consisting of a hand held meter attached to an optical sensor via an electronic cable The sensor uses an infrared beam to detect the vibration of a belt strand and sends a signal to the meter The sensor includes an LED that produces an orange light beam to help aim the invisible infra red ray Comparing this input to the vibration of a quartz crystal the meter computes the natural frequency of the belt The result is shown in the display window as hertz oscillations per second The internal programming of the meter is also able to report the belt tension in units of force e
32. perpendicular to the belt at the center of the span and at a 3 8 9 5mm distance It is also a good practice to orient the long edge of the sensor head parallel to the centerline of the belt This helps to reduce the effect of any divergence between the aiming beam and the infrared sensing beam When physical restrictions are present it is possible to get useable readings with the sensor at up to 2 distance from the belt and or tipped up to 45 degrees from perpendicular It is possible to take measurements from the edge of the belt The toothed side of a belt is equally acceptable as a target for the sensor The sensor LED s should be kept clean by wiping with a soft cotton cloth Solvents are never to be used TENSIONRITE BELT FREQUENCY METER 4 0 Functions 4 4 Battery Condition When the TensionRite Belt Frequency Meter is first switched on a battery condition check is automatically performed A low battery condition is signaled both visually and audibly The display window will flash an array of zeros starting with four and progressing to only one There will be an audible signal of four beeps as the display changes E 000 BEEP 000 BEEP o B Battery If these signals are seen heard batteries should be replaced Batteries are accessed through the removable cover on back of meter New batteries should be inserted within seconds of removal of old batteries Taking longer risks loss of
33. r head with the long edge of the sensor parallel to the centerline of the belt This tends to eliminate any non reading condition due to aiming error On new installations hand rotate the system at least one full revolution of the belt to seat and normalize the components If the top surface of the belt is not accessible try to beam the sensor against the edge of the belt The inside surface of the belt is equally acceptable The meter will not give a measurement for a belt under extremely low tension Simply increase the drive tensioning until the meter responds The meter will beep to indicate that a reading has been taken It is a good practice to take three successive readings This will show the consistency of your methods If the readings vary by more than 10 reassess your measurement technique Taking multiple readings at different belt orientations may help you identify problems with other drive components Tension excursions are indicative of component problems such as a bent shaft poorly mounted sprocket or pulley or an irregular pulley groove The TensionRite Belt Frequency Meter will measure vibration frequency Hz of all style belts even belts from manufacturers other than Goodyear Engineered Products Tension values will also be computed provided you input the appropriate span and mass constants When tensioning an array of multiple V belts use a single belt toward the center of the array Banded belts Torque Team
34. re advisable to check that the span and mass parameters have been entered correctly If they are found to be correct then check the calculation of your target values If everything looks correct then this drive is simply beyond the capacity of the meter s tension range The drive will have to be tensioned by using frequency Hz values alone Of course traditional force and deflection techniques can also be used SPECIAL NOTE Tensioning a drive generally involves moving one component shaft with respect to another On some drives especially larger installations tensioning the drive will involve sufficient movement that the span length is appreciably altered Frequency Hz values will remain accurate but if a precise tension value is to be calculated it may become necessary to update the span input to reflect the new shaft spacing 15 TENSIONRITE BELT FREQUENCY METER 8 0 Calibration 8 1 Spot Check The measurement system of the TensionRite Belt Frequency Meter is based upon a very stable quartz crystal that should never wander However a precision mechanical resonator tuning fork is included with the meter so that a calibration check at a spot frequency of 250Hz may be preformed at any time Tap tip of the tuning fork on a hard surface and then hold steady in front of optical sensor at a distance of 1 2 The meter will measure a frequency of 250HZ thus demonstrating that it is in calibration Results within 1 are
35. sed with rechargeable batteries The TensionRite Belt Frequency Meter can be successfully energized with an array of any AA size batteries either rechargeable or disposable The meter does not feature recharging circuitry so the user must supply a separate battery charging station in order to use rechargeable batteries A second set of batteries is also recommended to avoid leaving the meter without power while the batteries charge Leaving the meter unenergized for longer than approximately 30 seconds will result in the loss of any stored data May the TensionRite Belt Frequency Meter continue to be used while on board charging of the batteries is taking place or even when connected to the charger with batteries removed In theory maybe in practice no software block has been placed to prevent operation of the optical sensor while the batteries are under on board charging Most commercial charging units utilize only a rectifier for nominal smoothing of the output The optical sensor requires a ripple free current supply To preclude potential damage to the infrared circuitry and to eliminate the harvest of faulty data the meter has been taught to display a charging indication similar to the low battery signal when turned on during a charging cycle In addition Goodyear Engineered Products strongly recommends that the sensor head be totally disconnected during the on board battery charging process Refer to Section 4 5 of this User Manual
36. sent from Veyance Technologies Inc Goodyear Engineered Products are manufactured and sourced exclusively by Veyance Technologies Inc or its affiliates Goodyear Engineered Products Customer Service 800 235 4632 www goodyearep com ptp Integrated Display Systems Limited Clavis Tel 44 0 191 2627869 Fax 44 0 191 2620091 www clavis co uk gytensionritemeter Information you will need to register warranty online keep log for your records Date of Purchase Serial Number on back of unit Purchaser s Name Purchasers Mailing Address City State Country E mail optional Purchased from 30 Usa As 1 800 235 4632 FAX 1 800 762 4017 CANADA 1 888 275 4397 FAX 1 888 464 4397 GOODYEAREP COM PTP DISTRIBUTED BY Applied Industrial Technologies 1 877 279 2799 The GOODYEAR and Winged Foot Design trademark is used by Veyance Technologies Inc under license from The Goodyear Tire amp Rubber Company Goodyear Engineered Products are manufactured and sourced exclusively by Veyance Technologies Inc or its affiliates The Eagle Pd trademark is licensed to Veyance Technologies Inc by The Goodyear Tire amp Rubber Company 2008 Veyance Technologies Inc All Rights Reserved goodyearep com Aftermarket Parts Automotive and Commercial Truck Conveyor Belt Heavyweight and Lightweight Home and Garden Hydraulics Industrial Hose Power Transmission Products Powersports Rubber Tra
37. t tension values expressed in units of force Hz values are independent of mass and span values The output of the MAXIMIZER program gives target Hz values in addition to traditional tension values Armed with the correct Hz information simply follow the steps shown in the Quick Start section of the User Manual 25 TENSIONRITE BELT FREQUENCY METER How do determine span length There are three common methods to determine span length using the output from the MAXIMIZER drive analysis program performing a mathematical calculation or by direct measurement Goodyear Engineered Products user friendly drive analysis program MAXIMIZER will automatically report belt tensioning parameters including span length as part of your drive selection process Or you can make the calculation manually using the formula shown in the User Manual You must know the center distance dimension between shaft centers as well as the diameter of both driveR and driveN to complete the calculation The least accurate but sometimes most practical method to determine span length is by direct measurement Span length is defined to be the length of the unsupported belt between the exit point of one pulley and the entry point of the adjacent pulley Simply locate these two tangent points as best as you can and then measure between them along the back of the belt The resulting measurement expressed in meters is your span length Our company operating procedur
38. uirements of the standards However the meter housing will not pass scrutiny The ease in which the batteries could in some circumstances fall free and thus have no current power limit protection prevents the housing from qualifying for 1 5 certification 27 TENSTON RIT E Appendix 4 0 Tensioning Tables i ig b FIRE Qu IU E Ney Synchronous Belt Tensioning Tables Belt Strand Tension Ibs Deflection Forces for Belt Tensioning Ibs 0 100 RPM 101 1000 RPM 1000 up RPM Belt 0 100 RPM 101 1000 RPM 1000 up RPM Belt Type NEW USED NEW USED NEW USED Weight Belt Type NEW USED NEW USED NEW USED BELT BELT BELT BELT BELT BELT kg m BELT BELT BELT BELT BELT BELT Yellow 0 071 Yellow v White 0 142 White Purple 0 283 Purple 2 Blue 0 254 Blue 2 Green 0 380 Green 0 507 Red 0 761 Red 8GTR 12 370 258 210 146 130 98 0 064 8GTR 12 8GTR 21 648 456 376 264 232 168 0 112 8GTR 21 amp 8GTR36 1111 775 631 439 391 295 0 192 amp 8GTR36 867862 1913 1337 1081 761 681 505 0 330 867862 6 14GTR 20 571 427 459 331 411 299 0 163 14GTR 20 9 14GTR37 1052 796 844 620 764 556 0 301 9 14GTR 37 S 14GTR68 1939 1459 1555 1123 1395 1011 0 550 S 14GTR 68 14GTR 90 2570 1930 2074 1498 1850 1354 0 738 14GTR 90 14GTR 125 3578 2666 2874 2074 2570 1866 1 023 14GTR 125 SMBH 12 179 131 131 99 99 67 0 045 8 12 8MBH 22 345 249 233 169
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