CR – Compact force sensor with flexible installation options for pulley

  • 3 sizes with shaft journal diameters of 8, 10 and 12 mm
  • Nominal force ratings from 50 to 1500 N (11 to 330 lbf.)
  • Measuring range 30:1, accuracy class ±0.5%
  • Options include high temperature and vacuum chamber (to 10-7 hPa) construction
  • Overload protection rating of 10-times nominal force, stainless steel sensor body

The CR-Series force sensor offers compact dimensions and flexible installation options, and are designed for the measurement of tension on continuous material processing lines for filament materials. This product will accept a huge variety of different standard pulleys and therefore be applied versatilely. The product can be supplied with a Pilot or without a Pilot at the back the unit. In addition, flexible mounting options include the ability to install the unit utilizing either four fasteners from the front or a single fastener from the rear. The included dowel pin can also be incorporated between force measuring bearing and the machine frame to ensure proper unit orientation. For installations where a Pillow Block mount is required the optional bracket can be utilized. Shaft journal diameters of 8, 10 and 12 mm allow easy installation of standard pulleys. Standard pulleys are not supplied by FMS.

General technical details

Sensitivity1,8 mV/V
Tolerance of sensitivity<± 2 %
Accuracy class± 0,5 %
Temperature coefficient± 0,1 %/10K
Temperature range-10 to 60 °C (14 to 140 F)
Input resistance350 Ω
Power supply1 to 10 VDC
Overload protection rating10 times nominal force
Material main bodyStainless steel
Protection classIP 42
Electrical connectionMale connector M16x0.75, 5-pole
Repeatability error0.05%
Measuring range30:1

Available sizes

SizesNominal forces in N Inner-ø pulley CAD dataWatchlist
CR20850, 125, 250, 500, 1000, 150022 mm
CR21050, 125, 250, 500, 1000, 150026 mm
CR21250, 125, 250, 500, 1000, 150028 mm

Available options

SizesOptionDescription FO CAD dataWatchlist

Option descriptions

Name FO DescriptionPicture
flat face of force sensor, without shoulder, single screw mount, with dowel pinFLFL
Flange mount with 4 screws, pilot hole for centeringPHPH
right-angle connector in scope of supply, replaces straight connectorH14H14
temperature range up to 120°C (248°F)H16H16
electrical connection with PG gland with 5 m (16 ft.) cable, replaces connectorH21H21
for vacuum applications to 1E-7 hPa , 1E-5 Torr, temperature range up to 120°C (248°F)H31H31
vacuum to 1E-7 hPa , 1E-5 Torr, up to 150°C (302°F), with pg-gland and 5 m (16 ft.) cableH32H32
temperature range up to 150°C (302°F), with pg-gland and 5 m (16 ft.) cableH33H33
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