Web Orders Over $100 Ship Free. Enter Promo Code "SHIPFREE" for free UPS Ground Shipping at Checkout. (USA Only)

FSR Online Tension Sensor

FSR Single Roller Tension Sensor
Click images to enlarge.
Fined-mounted tension sensor, single rollers system, for mounting at an existing location to create a fixed wrap angle of the material over the sensor rollers.

29.5mm diameter hardened steel v-grooved roller is standard. Optional rollers include a U-Grooved Roller with 5mm radius, 70mm diameter lightweight roller for optic fibers and similar fragile filaments as well as ribbon rollers for flat materials such as tapes/bands, tows, ribbon cable, rectangular wires and similar flat materials.

5 ranges are offered from 0-10N (1Kg) up to 0-200N (20 Kg), rated in resultant force (therefore wrap angle must be taken into account and resultant force calculated)


  • Includes integrated amplifier with "zero" and "gain" adjustment pots
  • Standard output is 0-1V DC
  • Optional outputs include 0-10V DC, 4-20mA, USB, RS-232 and RS-422
  • Optional Wi-Fi cable free data transfer available requires use of battery pack for sensor
  • Sensor can be mounted using holed in sensor body or front plate of sensor
  • Features full bridge strain gauge sensing for highest accuracy
  • Requires 15-24V DC regulated power for sensor excitation
  • Optional Digital Tension Indicators are offered


ModelResultant Force Capacity (g/Kg)Resultant Force Capacity (Newtons)
FSR-10N1000g / 1 Kg0 – 10 N
FSR-20N2000g / 2 Kg0 – 20 N
FSR-50N5Kg0 – 50 N
FSR-100N10Kg0 – 100 N
FSR-200N20 Kg0 – 200 N
FSR-500N50 Kg0 - 500N

Determining the Tension Range

Determining the Tension Range
The tension range can be calculated for every wrapping angle with this formula:

FN = Nominal load (Multiplier * FZ)
FZ = Line Tension
α = Wrapping angle at the guide roll

FN = 2 * FZ * sin( α/2 )

When selecting the nominal measurement force it is necessary to take into account the weight of the guide roll and raise the nominal load respectively, particularly when working with small nominal forces.

Available Roller Types

Roller CodeDiameter / WidthMax Line Speed (m/min)Roller Material
Standard29.5 mm (V-Groove)4000Hardened Steel
R129.5 mm (U-Groove, R5)4000Hard Chrome-Plated Steel
F70 mm (V-Grooved)4000Hard-Coated aluminium
FB70 mm (V-Grooved)4000Tempered Steel
B629.5 mm (6mm width)2000Hardened Steel, Ribbon Roller
B1029.5 mm (10mm width)2000Hardened Steel, Ribbon Roller

Output Signal Possibilities

TS1 Sensor Standard Output Signal Diagram Standard

Output signal: 0 - 1 VDC

Click image for more information

TS1 Sensor Code A2 Output Signal Diagram Code A2

Output signal: 0 - 10 VDC

Click image for more information

TS1 Sensor Code A3 Output Signal Diagram Code A3

Output signal: 4 - 20 mA DC

Click image for more information

TS1-A10 without integrated Amplifier Diagram Code A10

Output signal: mV/V
for sensors without amplifier

Click image for more information

TS1-232 Sensor to PC Code 232

Output signal:
-digital: RS 232
-analog: 0 - 1 V DC

Up to 100 readings can be transferred per second, (internal sampling rate max. 4800 times/s)

Click image for more information

TS1-232-H Sensor to PC Code 232-H

Output signal:
-digital: RS 232
-analog: 0 - 1 V DC

Only for tension range 200 Kg or higher
Up to 500 readings can be transferred per second, (internal sampling rate max. 25000 times/s)
Only for certain tension ranges and designs available
Please contact us for details

Click image for more information

Related Products

SC-PM Tension Sensor Indicator
Click image for more info
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)
SC-4PM Tension Display
Click image for more info
4-Channel Digital Tension Indicator
- SC-PM4 is suitable to connect max. 4 sensors (different ranges are possible) providing 0 – 1 V DC output
- Adjustable damping for easier reading, if tension fluctuates
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



CalibrationAccording to the factory calibration procedure
Accuracy±1.5 % full scale and ±1 digit % full scale or better
other calibration material ±3 % full scale or better
Overload Protection100% of tension range
Measuring principleStrain gauge bridge (Load Cell)
Measuring roller deflection0.5 mm, max
Temperature driftLess than ±0.05 % full scale/ºC
Output signalStandard: 0 – 1 V DC
Option DC: 0 - 10V DC
Option MA: 4-20mA
Option USB: USB Output
Option 232: RS-232 (200Hz)
Option 422: RS-422 (200Hz)
Option WL: Wi-Fi Output
DampingStandard: 30 Hz (other values on request)
Temperature Range10 – 45 ºC
Air Humidity85 % RH, max.
Power supply+15…24 V DC, max. 50 mA regulated
Housing MaterialAluminium
Weight, net (gross)Approx. 250 g (Approx. 350 g)