Electronic Tensioner with High precision (Automatic Tension Controller)

There is description about Electronic tensioner as following:

RM Series is by integrating the electronic system and non-contact breaking design, there is barely any contact in the core mechanism of the main tension, wheel, except the connecting bearing. This combination provide smooth, stable and consistence tension, even in high speed winding. The non contact designs also reduce wear and tear of most of the critical components as to cut down maintenance cost. All MET comes with " Auto Tension Fine Tuning System". By sensing the movement of the tension arm, the control system will fine tuning the tension automatically.
Control system are packed within the body.

Model	Reference Wire Diameter Scope(mm)	Tension Scope(g.f)
RM-300	Φ0.02-Φ0.06	3-30
RM-201	Φ0.04-Φ0.12	10-100
RM-301	Φ0.06-Φ0.16	20-200
RM-501	Φ0.10-Φ0.25	30-350
RM-152	Φ0.12-Φ0.35	60-600
RM-202	Φ0.15-Φ0.45	100-1000