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TF Optic Fiber Tension Sensor

Made in Germany
TF Optic Fiber Tension Sensor
Click images to enlarge.
6 Tension Ranges
0–100 g up to 0–5.00 Kg

Large 70 mm aluminum rollers minimize bending of material which might damage or break the fragile filament.

The outer rollers are mounted on a movable plate to minimize contact when measurements are not being made.

Tension ranges of 10Kg and higher are available without moveable outer rollers.

Built-in signal conditioning with ZERO and SPAN pots provide a high-level, analog output to minimize the chance for signal interference.


  • 70mm V-grooved Harcoated Alumimum rollers are rated for speeds up to 5000 m/min
  • Outer rollers mounted on moveable bracket to disengage material when measurement not required
  • Frequency response of 100 Hz
  • 0-1 V DC output, proportional to tension (0-10 V DC optional)
  • Precision strain gauge sensing insures highest accuracy
  • Optional rollers are available for a wide variety of material profiles
  • Surface mount electronics provide long-term reliability

Tension Ranges

TF-1000-100 g
TF-2000-200 g
TF-5000-500 g
TF-1K0-1000 g
TF-2K0-2000 g
TF-5K0-5.00 Kg


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- 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)
SC4-PM Panel mount digital display unit
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Panel mount digital display unit
- Panel mount display unit (1/4 DIN IEC 61554 cutout – 91.5 x 91.5 mm)
- Suitable for connecting a maximum of 4 sensors (different ranges are possible) with analog output 0 – 1 V DC or optional series without integrated amplifier (output mV/V)


Accuracy± 1.5% FS or better
Sensor Excitation+15 ... 24 V DC, max. 50 mA regulated
Middle Roller Deflection0.5 mm (maximum)
Sensor Output0-1 V DC (standard)
0-10 V DC (option "DC")
4-20mA (option "MA")
Option "A10" Strain Gauge Output0.6 +/- 0.12 mV / V, 5V DC (max) power required (3-5V DC)
Overload Protection150% FS
Housing MaterialAluminum
Spacing of Outer Rollers190 mm
Roller Diameter (Root)70 mm
Roller MaterialHard-Anodized Aluminum
Maximum Linear Speed5000 m/min
Frequency Response30Hz (custom frequency response up to 100 Hz available as an option)
Operating Temperature40 to 105° F (5-40° C)