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Description 

The Feltest TensioMaster is an instrument for measuring 
tension in flexible thin webs generally encountered in paper 
mills, such as: 

DRYER FELTS 

DRYER FABRICS 

PRESS FELTS 

PRESS FABRICS 

FORMING FABRICS 

SOME PAPER SHEETS 

The operation is based on the principle that the amount of 
deflection of a flexible membrane under load is dependent 
upon the tensile stresses in the membrane. The load is 
provided by an internal spring, and the amount of web 
deflection is measured by a dial indicator, calibrated in 
thousandths. The deflection is converted to tension in N/mm. 

The design of the instrument is such that the reading is 
normally unaffected by the amount of pressure applied by the 
operator. Further, the unique 

‘picture frame’ bearing surface 

eliminates the effect of stress in adjacent areas of the web. 

The Feltest TensioMaster can be used on webs running in any 
angular attitude, and it can be applied on either side of a web. 

Summary of Contents for TensioMaster

Page 1: ...Feltest TensioMaster Instruction manual ...

Page 2: ... stresses in the membrane The load is provided by an internal spring and the amount of web deflection is measured by a dial indicator calibrated in thousandths The deflection is converted to tension in N mm The design of the instrument is such that the reading is normally unaffected by the amount of pressure applied by the operator Further the unique picture frame bearing surface eliminates the ef...

Page 3: ... are protected by seals and rubber bellows The range of tension measurable with the instrument is 0 5 to 20 N mm with an accuracy of 8 5 of the tension reading Operation 1 Set the pointer of the dial indicator to the zero mark by moving the sliding pointer back 2 Hold the instrument by the outer housing assembly Do not contact the picture frame while taking measurements ...

Page 4: ...nning direction press the instrument slowly against the web until the pointer of the indicator stops 4 Remove the instrument and read the dial 5 Reset the pointer of the dial to the zero position and perform the measurement at least once more to check repeatability ...

Page 5: ...e damage do not apply the instrument near an ingoing nip Where lapped seams are present avoid seam impact on the instrument by timing the measurement to correspond with web cycles When measuring slack spans avoid wrinkling the web by measuring close to a support roll ...

Page 6: ...6 Safety Please consult site safety systems before using the Feltest TensioMaster Avoid ingoing nips Apply the Tensiomaster gently Do not use the Tensiomaster on top of a roll ...

Page 7: ...dle where it enters the rubber bellows seal This is required to ensure smooth operation DO NOT DISASSEMBLE THE INSTRUMENT Service For service exchange refurbishment please contact the address below Feltest Equipment BV delivery address postal address Hoofdweg 131 D P O Box 205 7371 GG Loenen 6960 AE Eerbeek The Netherlands The Netherlands T 31 313 652 215 F 31 313 654 068 E info feltest com W www ...

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