The RFS® 150 is a single roll tension sensor designed to measure the running line tensions of yarn, wires, optic fibers, cables, tapes, bands, wraps, webs, foils and similar process materials. Existing rollers with 20-180 degree wrap angles can be converted for use as RFS measurement locations.
The RFS features a unique strain-gauge design delivering extremely precise and stable measurements while providing maximum overload protection. RFS sensors are used in a variety of low and high-range applications, such as measuring 1 or 2 grams on fine denier yarns/fibers to measuring wire/cable up to 500Kg / 5000 N / 1100 lbs.
High precision mechanical design ensures the calibrated accuracy of the RFS remains unchanged throughout the sensor’s service life. The measurement is not influenced by the force introduction point, i.e. the sensor is not affected by lever arm action or any axial tilt torques which might occur.
The force acting radially at the bearing journal, along the measurement vector, causes a microscopically small, elastic deformation of the complex load cell. This deformation is registered at a pre-determined position by way of strain gauges and is then evaluated electronically. The high mechanical stiffness of the load cell enables measurement with virtually no excursion. This tension measurement principle is based on the evaluation of the force applied radially and transferred to the sensor by way of the bearing journal. This force is determined by the reversing geometry and the line tension.
- Resolution of 0.1% and better
- Rugged stainless steel housing is environmentally sealed
- Threaded housing with lock-nuts permits easy mounting and simple alignment
- Overload protection up to 800%
- Wide variety of precision, ball-bearing mounted guide rollers are available
- Supplied with a 10 ft. (3 m) shielded cable. Optional lengths are available
- Custom sensor designs can be developed to meet specific applications requirements. Inquire.
- Existing rollers with 20-180 degree wrap angles can be used as measurement points for the RFS.
|Model||Capacity (Resultant Force)||Bearing Journal Diameter (mm)|
|RFS-100||100 g / 1 N / 0.22 lbs||5, 8, 10|
|RFS-200||200 g / 2 N / 0.44 lbs||5, 8, 10|
|RFS-300||300 g / 3 N / 0.66 lbs||5, 8, 10|
|RFS-400||400 g / 4 N / 0.88||5, 8, 10|
|RFS-500||500 g / 5 N / 1.1 lbs||5, 8, 10|
|RFS-1K||1 Kg / 10 N / 2.2 lbs||5, 8, 10|
|RFS-2K||2 Kg / 20 N / 4.4 lbs||5, 8, 10|
|RFS-3K||3 Kg / 30 N / 6.6 lbs||5, 8, 10|
|RFS-4K||4 Kg / 40 N / 8.8 lbs||5, 8, 10|
|RFS-5K||5 Kg / 50 N / 11 lbs||8, 10, 12|
|RFS-6K||6 Kg / 60 N / 13 lbs||8, 10, 12|
|RFS-10K||10 Kg / 100 N / 22 lbs||8, 10, 12|
|RFS-20K||20 Kg / 200 N / 44 lbs||8, 10, 12|
|RFS-30K||30 Kg / 300 N / 66 lbs||8, 10, 12|
|RFS-40K||40 Kg / 400 N / 88 lbs||8, 10, 12|
|RFS-50K||50 Kg / 500 N / 110 lbs||10, 12|
|RFS-60K||60 Kg / 600 N / 130 lbs||10, 12|
|RFS-100K||100 Kg / 1000 N / 220 lbs||10, 12|
|RFS-200K||200 Kg / 2000 N / 440 lbs||12|
|RFS-300K||300 Kg / 3000 N / 660 lbs||12|
|RFS-400K||400 Kg / 4000 N / 880 lbs||12|
|RFS-500K||500 Kg / 5000 N / 1100 lbs||12|
|Measuring Principle||Strain Gauge|
|Accuracy||±0.5% Full Scale or better|
|Sensor Excitation||10 VDC (12 VDC, max.)|
|Sensor Output||1.5 mV/V|
|Input Resistance||350 Ohms|
|Output Resistance||350 Ohms|
|Overload Protection||400 - 800%|
|Housing Material||Stainless Steel|
|Environmental Protection||IP50 (Splash-Proof)|
|Cable Type||4.5 mm diameter shielded cable with bare leads|
|Cable Length||3 meter / 10ft standard, longer lengths available, inquire|
|Operating Temperature||15 to 155° F (-10 to 70° C)|
|Fequency Responce||5 msec (200 Hz)|
|Resultant Force||[Line Tension] x sine α [wrap angle]|
Thank you for your quote request, we will contact you within 1-2 business days.