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Operating instructions – Belt tension meter BTM-1                         

 

Version 1.0

 

17

 

 

Specifications 

 

 
Model: 

BTM-1 

Measurement range  

1 - 500 Hz 

Modulation 

5 kHz 

Sensor test 

25 Hz incl.  

 

“OK” message 

Readout error 

+/- 0.3 Hz 

Resolution 

+/- 0.1 Hz 

 

Operation 

-20°...+85°C  

 

(-68°...+185° F)

 

Storage  

-40°...+105°C 

 

(-40°...+221°F)

 

Humidity 

20 .. 95 % 

Housing plastic (PVC)  

IP10 

Measurement sensor  

plastic; IP66 

Housing dimensions WxHxD 

75 x 115 x 35 mm 

(2.95 x 4.53 x 1.38 in)

 

Carrying-case dimensions  

230 x 220 x 75 mm 

(9.06 x 8.66 x 2.95 in)

 

Display 

2 line LCD 12 x 60 mm 

(0.47 x 2.36 in)

  

 

with background illumination 

Languages language 

selection for four languages 

Input limits free belt strand 

30 – 9’999 mm 

Input limits belt mass 

0.001 - 9.999 kg/m 

Input limits belt width 

1 – 999mm 

Number of storage locations 

255 

Voltage supply 

9 V alkaline battery, type E-Block 6LR61 

Interface 

RS232, DSUB9 

 

 

Содержание BTM-1

Страница 1: ......

Страница 2: ...ased on laboratory application with small scale test equipment running at standard conditions and do not necessarily match product performance in industrial use New knowledge and experience may lead to re assessments and modifications within a short period of time and without prior notice EXCEPT AS EXPLICITLY WARRANTED BY HABASIT WHICH WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES E...

Страница 3: ...t probe 8 Operational elements 8 Operating buttons 8 Checking Calibration 9 Operation 10 General information on belt tension 10 Measuring procedure 11 Positioning of the measurement probe 12 Belt Selection 13 How to get belt weight information 13 Step by Step 14 Procedure 14 Input of calculated value in the BTM 1 14 Measurement Procedure 15 Storing measurements 16 Calling up stored measurements 16...

Страница 4: ...e making measurements ensure that the instrument is switched off master switch and secured against unintentional restarting Personnel must be informed in a timely manner that measurements will be performed If necessary clearly mark and cordon off the service area at or around the machine for example by using lines or ropes The measuring and setting of the belt tension must only be performed by qua...

Страница 5: ...echarged heated or disposed of in an open flame explosion hazard Note Please contribute to the protection of the environment Discharged batteries and rechargeable batteries should not be disposed of along with household waste They can be taken to collection sites for used batteries or special waste Find out where these sites are located At the end of its service life this product must not be dispo...

Страница 6: ...from becoming soiled or for example from coming into contact with oil or grease Maintenance In case of any malfunction contact Habasit Do not open the instrument yourself The warranty will expire if unauthorized persons attempt to repair or otherwise tamper with the instrument Storage must always take place under dry conditions Transport the instrument only in its original case Note The manufactur...

Страница 7: ...s in regard to intended use can lead to malfunctions in operation for which Habasit assumes no liability Delivered items This Belt Tension Meter measurement instrument is delivered in a durable plastic case A measurement probe and a 9 V battery are also supplied Product advantages Precise measurement of belt tension Precise measurement of rotary speed Precise calculation of belt span tension Built...

Страница 8: ...al elements The operating buttons control various functions The display shows settings and measurement results The measurement probe registers the characteristic frequency of the tensioned free belt by using pulsed light or the rotary speed and communicates the measurement values to the Belt Tension Meter Operating buttons Input belt weight kg m 2 1st click Access belt database 2 nd click Input st...

Страница 9: ...this 25 Hz in the display The readout can vary in the range from 24 7 Hz to 25 3 Hz 1 Switch on the Belt Tension Meter using the button 2 Switch to the Freq Test using see Menu structure p 18 3 Activate the frequency test using the display begins to flicker at a nominal frequency of 25 Hz 4 Hold the measurement probe up close to the display 5 The measurement probe measures the display frequency th...

Страница 10: ...elt which is between two pulleys The length is identical with the shaft distance To calculate the belt tension or trum force the measured values of the belt mass belt length belt width are required The trum force is calculated using the following formula 𝐅 𝟒 𝐦𝐑 𝐛𝐨 𝟏𝟎𝟎𝟎 𝑳𝟐 𝒇𝟐 F belt force trum force N mR belt mass per square meter kg m 2 bo belt width mm L free oscillating belt length m f measured ...

Страница 11: ...cteristic frequency is measured by the probe by using light pulses There must be a sufficient amount of light reflected from the belt If the intensity is low because of a dark belt color it helps to mark to belt locally with a bright color e g correcting fluid or small piece of adhesive tape etc By using the measured frequency along with the mass of the belt from the integrated belt database for e...

Страница 12: ...0 12 Positioning of the measurement probe The distance between the drive belt and the measurement probe should be between 3 20 mm The measurement of the belt tension should take place at the longer strand of the belt in the middle between the two drive rollers ...

Страница 13: ...he weight per square meter kg m2 How to get belt weight information Flat belts data sheet available For flat belts you can find the required value grammage in the data sheet Timing belts data sheet available For timing belt you will only find a weight per meter kg m of belt length associated with a specific belt width Example for AT10 S 01 Here you have to calculate the required weight in kg m2 by...

Страница 14: ...mage A precondition for this is to have an accurate scale available which can measure with an accuracy of 1 of the measured value Procedure The weight of a piece of belt with a width b and a length l has to be measured with a scale The weight kg has to be divided by the width m and by the length m Example for AT10 S 01 You have a piece of 15mm width and 0 5m length The weight is 45g 0 045kg The we...

Страница 15: ...ton or Hertz A successful measurement is acknowledged by a longer acoustic signal 6 Check the setup and repeat the measurement General installation instructions for belt drives As a consequence of thermoplastic materials belts relax after a certain time of installation Therefore it is recommended to check and adjust the tension after a few hours of operation Along with the recommended tension by t...

Страница 16: ...utton Storage No appears in the display 3 Using arrow buttons to select storage No 4 Confirm with Store appears in the display 5 Confirm with for OK or cancel using for Esc 6 After storing the Storage No appears in the display Calling up stored measurements You may call up measurements stored in the instrument at any time Procedure 1 Press Storage No X appears in the display 2 Using arrow buttons ...

Страница 17: ...asurement sensor plastic IP66 Housing dimensions WxHxD 75 x 115 x 35 mm 2 95 x 4 53 x 1 38 in Carrying case dimensions 230 x 220 x 75 mm 9 06 x 8 66 x 2 95 in Display 2 line LCD 12 x 60 mm 0 47 x 2 36 in with background illumination Languages language selection for four languages Input limits free belt strand 30 9 999 mm Input limits belt mass 0 001 9 999 kg m Input limits belt width 1 999mm Numbe...

Страница 18: ...ing instructions Belt tension meter BTM 1 Version 1 0 18 Menu structure At the lower left in the display of the Belt Tension Meter each active function key appears superimposed on the corresponding menu item ...

Страница 19: ...hes off after 10 Minutes of inactivity 4 Light beam of probe is not reflected sufficiently To improve reflection properties apply a piece of bright adhesive tape on the area of measurement 5 Distance of measurement is not within recommended tolerance Please make sure that the distance between belt and probe is between 5 20mm Displayed test result is not reasonable Potential Cause Proposal for Adju...

Страница 20: ...habasit co nz Poland Habasit Polska Sp z o o Dąbrowa Górnicza Phone 48 32 639 02 40 www habasit pl Russia OOO Habasit Ltd St Petersburg Phone 7 812 600 40 80 www habasit ru Singapore Habasit Far East Pte Ltd Singapore Phone 65 686 255 66 www habasit com sg South Africa Habasit South Africa Pty Ltd Gauteng Phone 27 10 001 6770 www habasit co za Spain Habasit Hispanica S A Barberà del Vallès Phone 3...

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