Measuring range max. 10 - 800Hz 
SK-500 for measuring belt tension and for control the strand force of V-belts, tooth belts, power belts or similar. The optimal life time of a belt is depending on the correct belt tension.
The measured value is shown as frequency in Hz or strand force in N.
Non-contact measuring occurs by infrared light
Special Features
Measuring principle: Frequency measurement by LED light while the belt is not moving. The belt is toughed by hand to create vibration.
The readings can be displayed as frequency (Hz) or strand force (N or lbf)
The belt tension meter RTM-400 includes a display unit as well as 2 measuring probes:
- plug in probe for one-hand operation
- measuring probe with cable for limited access space
For determinating the belt force in Newton, 2 parameters are needed. Thereby the following restrictions are obtained:
- free strand length 9.99 m
- belt mass up to 9.999 kg/m
Belt tension meter with measuring range 10 - 800 Hz