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SK 224 FM High-Capacity, Radial Force
Online Tension Sensor

Made in Germany
SK 224 FM, Radial Force Online Tension Sensor
Click images to enlarge.
4 Ranges
500 KG (1100 LBS/5000N)
750 KG (1650 LBS/7500N)
1000 KG (2200 LBS/10 kN)
1500 KG (3300 LBS/15 kN)

Completely sealed tension sensor is constructed from stainless steel with an IP67 waterproof rating designed for use in a wide variety of tension/force sensing application, even when submerged in water. Also suitable for high force application as well as those application where there is a significant quantity of airborne particulate or chemicals.

Its unique strain-gauge design delivers excellent measurement precision and stability as well as providing maximum overload protection. This sensor is supplied with a 17mm diameter, non-rotating bearing journal typically used with customer-supplied rollers or guide pulleys.


  • A single-roller system designed to use an existing reversing point for tension measurement
  • Rugged stainless steel housing is environmentally sealed
  • Supplied with a 10 ft. (3 m) integrated shielded cable. Optional lengths are available
  • Completely sealed sensor fabricated from stainless steel is IP67 Waterproof rated
  • Overload protection up to 800%
  • Resolution of 0.1% and better

Related Products

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Strain Gauge Amplifier
- Designed for use with a wide range of strain-gauge-based force, load and tension sensors
- 0-10VDC analog output
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Digital Tension Indicator
- Selectable “damping function” reduces display fluctuations
- 24V DC power supply with galvanic isolation
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Tension Indicator/Amplifier Console
- 1 to 4 measuring channels
- For 24V DC power supply
- Rugged industrial design in steel plate-housing


Tension & Force Definitions


Measuring Ranges500 KG (1100 LBS/5000N)
1000 KG (2200 LBS/10 kN)
2000 KG (4400 LBS/20 kN)
Measuring PrincipleStrain Gauge
Accuracy±0.5% Full Scale or better
Sensor Excitation10 VDC (12 VDC, max.)
Sensor Output1.5 mV/V
Input Resistance1000 Ohms
Output Resistance1000 Ohms
Overload Protection400 - 800%
Deflection0.07mm (max.)
Housing MaterialStainless Steel
Environmental ProtectionIP67 (Water-Proof)
Cable Type4.5 mm diameter shielded cable with bare leads
Cable Length10 ft. (3 meter) integrated cable, longer lengths available. Inquire
Operating Temperature15 to 122° F (-10 to 50° C)
Sensor Output1.5mV/V
Fequency Responce5 msec (200 Hz)
Zero Adjustment±45%
Resultant Force[Line Tension] x sine α [wrap angle]