Table of Contents
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Table of Contents
Related Manuals for SKF PHL FM 10/400
Summary of Contents for SKF PHL FM 10/400
- Page 1 SKF Belt Frequency Meter user manual User manual box edition...
- Page 2 General safety tips Safety first – read and understand this manual before operating the SKF Belt Frequency Meter. Never use your SKF Belt Frequency Meter on moving belts. Switch on and isolate any Do not leave the unit in belt drive system prior to...
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Page 3: Table Of Contents
Table of contents page 1.0 Device description 2.0 Quick start 3.0 Functions 3.1 Keys 3.2 Audio/ visual display 3.3 Optical sensor 3.4 Battery condition 3.5 Charging batteries 4.0 Setup & use 5.0 Operating tips 6.0 Meter range 7.0 Calibration 7.1 Spot check 7.2 Annual certification 8.0 Technical specification 9.0 Useful formulae and conversions... -
Page 4: Device Description
1.0 Device description The SKF Belt Frequency Meter 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 infrared ray.) Comparing this input to... -
Page 5: Quick Start
2.0 Quick start 5. Read belt frequency (Hz) 2. Press to switch meter on 4. Tap or pluck belt 1. Plug in sensor 3. Aim sensor at belt, gap 5 to 25 mm... -
Page 6: Functions
3.0 Functions 3.1 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 ON/OFF meter is first switched on a battery check is made see Section 3.4 for a description of the visual and audible low battery signal. -
Page 7: Audio/Visual Display
3.2 Audio/visual display The SKF Belt Frequency Meter is an interactive tool. It provides both visual and audible communication with the operator. Each signal or combination of signals has a meaning. While all these signals are discussed in other sections of this manual, a compilation of all the available signals will be presented here. -
Page 8: Optical Sensor
3.3 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 perpendicular to the belt at the centre of the span at 9,5 mm (3/8 in) distance. -
Page 9: Battery Condition
3.4 Battery condition When the SKF Belt Frequency Meter is first switched on, a battery condition check is automatically performed. A low battery condition is signalled 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”... -
Page 10: Charging Batteries
Damage to the optical sensor could result. The SKF Belt Frequency Meter is compatible with user supplied rechargeable batteries and charging unit. A convenient 3,5 mm, positive center charging socket is located on the bottom end of the meter body adjacent to the sensor cable plug-in port. -
Page 11: Setup & Use
4.0 Setup and 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 using ON/OFF 3. Load span and mass data or recall previously loaded data. SPAN To load span data simply hold down while using... - Page 12 To recall stored span and mass data simply press MEM 1 MEM 3 MEM 2 Depending upon where you stored the data for this specific drive. 4. Aim sensor at centre of selected belt span. Tap or pluck the belt. The meter will beep once to indicate that a measurement was taken.
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Page 13: Operating Tips
5.0 Operating tips Here are some procedures and “best” practices that may ease use or help increase the reliability of your belt tensioning efforts. Take your tension reading as close to the centre of the selected span as 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”... -
Page 14: Meter Range
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 SKF Belt Frequency Meter. The drive will have to be tensioned by traditional force and deflection techniques. -
Page 15: Calibration
7.0 Calibration 7.1 Spot check The measurement system of the SKF 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 250 Hz may be per- formed at any time. -
Page 16: Annual Certification
7.2 Annual certification Technical support relating to calibration certification and/or operation of the SKF Belt Frequency Meter can be obtained from the manufacturer at: techsupport@clavis.co.uk phone: +44 191 262 7869 fax: +44 191 262 0091 The meter may be returned to the manufacturer for repair or recalibration at any time. -
Page 17: Technical Specification
8.0 Technical specification Measurement range Frequency range ........10 to 400 Hz Measurement accuracy Below 100 Hz....... ± 1 significant digit Above 100 Hz........ ± 1% Belt mass input range ......0,001 to 9,990 kg/m Belt span input range ......0,001 to 9,99 m Maximum belt tension display .... -
Page 18: Useful Formulae And Conversions
9.0 Formulae and conversions Force conversion constants newton x 0,2248 = lb pound x 4,4482 = N kilogram x 9,8067 = N Length conversion constants inch x 0,0254 = m metre x 39,3701 = in mm x 0,001 = m Span length calculation (D - d) where:... -
Page 19: Appendix
= span length (m) f = vibration frequency (Hz) The SKF 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. -
Page 20: Limited Warranty
SKF Belt Frequency Meter in respect to which such cause arise, and in no event shall IDS be liable for special, incidental, consequential, exemplary, or punitive damages resulting from any such cause. -
Page 21: Belt Mass Constants
3.0 Weights and tension values Timing belts Belt type Belt type Belt Tension Mass New belt Run in belt kg/m HiTD 5M 9 0,0369 5M 15 0,0614 5M 25 0,1024 8M 20 0,1282 8M 30 0,1922 8M 50 1 037 0,3204 8M 85 2 044... - Page 22 Wrapped V, wedge and banded belts Belt Smallest pulley Speed range Belt tension per Mass type diameter single belt* New belt Run in belt Single belt Belt in a over incl. over incl. band** kg/m 1 000 2 500 0,0598 2 501 4 000 60 over...
- Page 23 Wrapped V, wedge and banded belts Belt Smallest pulley Speed range Belt tension per Mass type diameter single belt* New belt Run in belt Single belt Belt in a over incl. over incl. band** kg/m 1 740 2 026 1 350 0,3804 0,4398 1 741...
- Page 24 Cogged raw edge V, wedge and banded belts Belt Smallest pulley Speed range Belt tension per Mass type diameter single belt* New belt Run in belt Single belt Belt in a over incl. over incl. band** kg/m 2 500 0,1804 0,2250 2 501 4 000...
- Page 25 Cogged raw edge V, wedge and banded belts Belt Smallest pulley Speed range Belt tension per Mass type diameter single belt* New belt Run in belt Single belt Belt in a over incl. over incl band** kg/m 1 000 2 500 0,1830 0,2520 2 501...
- Page 28 SKF GmbH Gunnar Wester Str. 12, 97421 Schweinfurt Germany ® SKF is a registered trademark of the SKF Group © SKF Group 2008 The contents of this publication are the copyright of the publisher and may not be reproduced (even extracts) unless permission is granted.
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