TrueSpeed Sensor
The TrueSpeed Sensor is the fastest way to check the actual surface speed of your rolls and machine clothing – helping you easily identify speed differences caused by input errors and slipping drive rolls.
Every piece of Paper Machine Clothing must run at precisely controlled speeds. But controlling those individual speeds comes from the drive control system making a calculated guess: multiplying the roll diameter and the thickness of the felt or fabric with π and the revs of the drive: v(fabric) = π * 2 * R(2) * N
Manually inputting data puts you at risk of all sorts of errors, from typos and incorrect data to forgetting to update the data after changing the fabric. Combine this with the fact slipping drive rolls often go undetected—while the drive control system shows all section speeds are correct—and you’re left facing numerous breaks, unusual draws, sheet surface defects, or worn-out machine clothing.
The TrueSpeed Sensor is the fastest way to check the actual surface speed of your rolls and machine clothing—helping you easily identify speed differences caused by input errors and slipping drive rolls.
The sensor is ready for use in just a few seconds, and the measurement itself will take about the same.
The TrueSpeed can be used on almost any position, whether wet or dry, hot or cold, stable or vibrating.
Tachometers are standard equipment, but none are as suitable for use on a running paper machine as the Feltest TrueSpeed Sensor. It is a robust construction and all parts are secured. The big diameter measuring wheels can handle speeds up to 3000 m/min and the pivoting handgrip assures auto-aligned of the device in the machine running direction.
Specifications: TrueSpeed Sensor
Required control unit: Feltest SpeedController
Measuring principle: Count the pulses from magnets in the wheel
Range: 10 -3000 m/min | 30 - 9800 fpm
To be used on: Machine clothing, rolls, dryer cylinders
Accuracy: ± 0.05% of full scale
Read-out units: m/s, m/min, km/h, fps, fpm, fph
Max. length including handgrip: 300 mm | 6.5 ft
Length of the cable: Approx. 2 m | 6.5 ft
Protection control unit: !P68 (when connected to the SpeedController)
Total weight: 1,2 kg | 2.6 lbs.