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12

3.5  Air Damping 

(Optional Accessory Code 

A

)

Setting the dashpot:

- Screw in the setscrew clockwise as far as it will go = maximum possible damping. The 
  screw is protected against overwinding. The damping is now at its maximum setting.
- Turn the setscrew counterclockwise until the desired damping of the pointer is reached, 
  and the pointer swings are minimal.
  The setting range is three counterclockwise revolutions, starting from the maximum 
  setting.

During operation, as in spooling or winding machines, high frequency tension fluctuation 
can occur. This process fluctuation can result in rapid pointer swings which make it difficult 
to read the scale. This effect can be reduced by using the built in Air Dashpot Damping 
mechanism. The dashpot is infinitely variable and ensures the best readable pointer re-
sults with minimum pointer swings. The air dashpot is built in during production of the ten-
sion meter and can thereforen not be retrofitted.

Setscrew 

(inside Housing)

fig. 3.4
Setsrew for Air damping

Turn setscrew clockwise 

 = Increase damping

Turn setscrew counterclockwise 

 = Decrease damping

Do not screw out the setsrew by more than 5 counterclockwise revolutions; 

the setscrew may otherwise fall into the tension meter housing.

Summary of Contents for DN1

Page 1: ...Tension Meter DN Series Model DN1 Edition DN 04 2 E Instruction Manual Valid as of 01 04 2006 Please keep the manual for future reference S C H M I D T c o n t r o l i n s t r u m e n t s ...

Page 2: ...ilable Models 5 2 1 Specifications 5 2 2 Optional Accessories 6 2 3 Delivery Includes 6 2 4 Unpacking 6 3 Notices Before Starting Measurement 7 3 1 Operating Elements of the Tension Meter 8 3 2 Material Thickness Compensator 9 3 3 Measuring with the Tension Meter 10 3 4 Verification of the DN1 calibration 11 3 5 Air Damping Optional Accessory Code A 12 4 Service and Maintenance 13 4 1 Rollers 13 4...

Page 3: ...the device Insufficient inspection of device components that are subject to wear Opening the device or improper repair work Disasters caused by the effects of foreign objects or by force majeure 1 1 Notices within the Operating Instructions The fundamental prerequisite for the safe handling of this device and its troublefree opera tion is the knowledge of the basic safety notices and safety instru...

Page 4: ...hall HANS SCHMIDT Co GmbH be held liable for damage resulting from misuse The intended use also includes Complying with all notices included in the Operating Instructions and observing all inspection and maintenance works 1 8 Copyright 1 9 Declaration of Conformity The copyright on these Operating Instructions remains with the company HANS SCHMIDT Co GmbH These Operating Instructions are intended ...

Page 5: ...s purpose a material sample of about 5 m should be supplied International unit for tension force 1 cN 1 02 g 0 01 N 1 daN 1 02 kg 10 0 N Calibration According to SCHMIDT factory procedure Accuracy 1 full scale FS or 1 graduation on scale Scale diameter 54 mm Temperature range 10 45 C Air humidity 85 RH max Housing material Die cast aluminium Housing dimensions 220 mm x 74 mm x 42 mm L x W x H Weig...

Page 6: ...e goods 2 4 Unpacking 1Tension meter 1Hex key with Code A dashpot with hex head screw 1 Certificate of Compliance with the order 2 1 under EN 10204 1Operating Instructions 1Carrying case V grooved Line Speed m min max Roller Material Standard 2000 Hard coated aluminium Code K 3500 Hard coated aluminium Code H 5000 plasma coated aluminium not for Type DN1 30K L and DN1 50K L Code T 1000 Plastic POM...

Page 7: ...lothing if necessary For example eye protectors gloves etc Tensions that exceed the tension range of the instrument by more than 100 may cause permanent damage to the movement and must be avoided under any circumstances The ID plate with the serial number as well as the calibration label optional are provided on the bottom of the instrument the SCHMIDT Quality Seal are provided on the surface fig ...

Page 8: ...Elements of the Tension Meter Filament guide fig 3 1b Special lever Code L Optional Accessory Material thickness compensator Thumb piece Measuring roller Process material Scale fig 3 1a Sample holding clip Guide roller ...

Page 9: ...es there will be a change in the tension reading even when the line tension has not changed To compensate for this effect high range instruments are usually equipped as necessary with a material thickness compensator which automatically shifts the outer rollers Insert a sample of the material to be measured or any other sample that has the same diameter in the material thickness compensator To det...

Page 10: ...ller The scale pointer will now show the line tension directly Requirement If necessary a sample of the material to be measured must be inserted in the thickness compensator as described in Chapter 3 2 Thumb piece Guide rollers Measuring roller Filament guide Process material Guide rollers Inserting Removing Push the thumb piece or special lever as far as it will go in the direction of the arrow W...

Page 11: ...able operation is no longer allowed the instrument has to be recalibrated or repaired For recalibration return the tension meter to the factory Requirement If necessary a sample of the material to be measured must be inserted in the thickness compensator as described in Chapter 3 2 All tension meters are calibrated with standard materials such as polyamide monofilament PA according the SCHMIDT fac...

Page 12: ... tension fluctuation can occur This process fluctuation can result in rapid pointer swings which make it difficult to read the scale This effect can be reduced by using the built in Air Dashpot Damping mechanism The dashpot is infinitely variable and ensures the best readable pointer re sults with minimum pointer swings The air dashpot is built in during production of the ten sion meter and can th...

Page 13: ...00 m min with mounting wrench or Model DN1 1000 K on the rear of the tension meter Serial number Z 240 888888 on the rear of the tension meter Roller Code K Order number R524003 Supply 1 set 3 pieces spare rollers 3500 m min with mounting wrench 4 1 Rollers 4 2 Cleaning For cleaning the unit do not use any AGGRESSIVE SOLVENTS such as trichloroethylene or similar chemicals NO WARRANTY OR LIABILITY ...

Page 14: ...by customer No Yes No Yes No Yes Vertification of the calibration Visual inspection and functional test Values within specification Prepare certification for incoming calibration Determination of costs Make of cost estimate Repair and adjustment Verification of the calibration Calibration label on the instrument No Invoice scrapping and disposal Invoice repair and calibration services and dispatch...

Page 15: ...led fault description to our service department Please indicate in your order whether you require an Inspection Certificate 3 1 according to DIN EN 10204 6 Repairs HANS SCHMIDT Co GmbH Schichtstr 16 D 84478 Waldkraiburg Germany Service address Shipping instructions We kindly ask for return free of charge for us if possible by airmail parcel All occurring charges if any such as freight customs clea...

Page 16: ...Thickness Gauge Yarn Package Durometer and Shore A Durometer Sample Cutter Balance Moisture Meter Leak Tester Softometer Mailing address P O B 1154 84464 Waldkraiburg Germany Shipping address Schichtstr 16 84478 Waldkraiburg Germany Hans Schmidt Co GmbH Phone int 49 0 8638 9410 0 Fax int 49 0 8638 4825 int 49 0 8638 67898 More than 70 years Worldwide e mail info hans schmidt com Internet http www ...

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