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TSF1 3 Roller Tension Sensor for Optic Fibers and Fragile Material

Made in Germany
TSF1 Tension Sensor
Click images to enlarge.
7 Tension ranges available, 0 - 100 g/cN up to 0 - 10 Kg/daN

The TSF1 is a 3-roller fixed-mount tension sensor designed to measure the running tension of fragile fibers up to 1.5 mm diameter. Large 70mm diameter rollers minimize the bending angle making the TSF1 ideal for testing sensitive materials such as optic fiber, carbon fiber, etc... Built-in signal conditioning with ZERO and SPAN pots provide a high-level, analog output to minimize the chance for signal interference.

The TSF1 can be used for process diagnostics, continuous monitoring, and recording running online tensions. It can also be used as part of a closed-loop control system with a 3rd-party controller.


  • Integrated measuring amplifier and high accuracy of 1 % FS
  • 70mm diameter V-grooved guide rollers with ball-bearings
  • Provides 0-1V (standard), 0-10V, or 4-20mA Output Signal

Tension Ranges

ModelRangeMeasuring Head Width*Calibration Material**
TSF1-1000 – 100 g/cN300 mmPA: 0.12 mm Ø
TSF1-2000 – 200 g/cN300 mmPA: 0.12 mm Ø
TSF1-5000 – 500 g/cN300 mmPA: 0.20 mm Ø
TSF1-10000 – 1000 g/cN300 mmPA: 0.30 mm Ø
TSF1-20000 – 200 g/cN330 mmPA: 0.50 mm Ø
TSF1-50000 – 5000 g/cN330 mmPA: 0.80 mm Ø
TSF1-10K0-10 Kg/daN330 mmPA: 1.00 mm Ø
Other tension ranges and measuring head widths available on request.
* Depending on model, either outside dimension of front plate or outer distance between outside guide rollers
** Suitable for 95 % of applications PA = Polyamide Monofilament

Calibration to customized material: If process material differs significantly from the factory calibration material in diameter, rigidity or shape, special calibration using customer-supplied samples is recommended. For this purpose, a material sample of about 5 m should be supplied.

Guide Rollers

TypeMax Line SpeedRoller Material
Standard5000 m/minHard-coated aluminium
Code FB5000 m/minTempered steel (for model TSF1-2000 and higher)

Related Products

SC-PM Tension Sensor Indicator
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Tension Indicator with Color Display
- User set limits (Min and Max alarms) with Visual Indicator in LCD with Open Collector output for external signal
- Adjustable damping to reduce tension fluctuates
- Storage for 4 different material calibrations (standard + 3 customer supplied materials)
Click image for more info
Data Transfer & Analysis Program
- Data can be viewed and analyzed in TensionInspect or transferred to Excel
- Selectable sample rates up to 200 Hz and scalable trend graph "x" and "y" axis


Accuracy±1 % full scale and ±1 digit
Overload protection100 % of tension range
Measuring principleStrain gauge bridge
Measuring roller deflectionMax. 0.5 mm
Natural frequencyApprox. 500 Hz, depending on tension range
Signal processingAnalog
Temperature driftLess than ±0.05 % full scale/ºC
Output signalStandard: 0 – 1 V DC (analog) impedance: ≥ 5 kΩ
Option: 0 – 10 V DC (analog), 4 – 20 mA (current) or mV/V (DMS)
Damping (fg)Standard: 30 Hz (other values on request)
Temperature range10 – 45 ºC
Power supply+15…24 V DC, 21 mA regulated
Code A3: max. 50 mA regulated
Code A10: max. +5 V DC, max. 20 mA regulated
Housing materialAluminium
DimensionsSee PDF brochure
Weight, net (gross)Approx. 800 g (1100 g)


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