Non-contact Catenary Sag Controller1. Strong & Professional Technology of Sag Controller Both Rubber Line and Cross Line can use the non-contact catenary sag controller. It has been widely used in quantity in China and has also been exported to several other countries such as USA, Mexico, the Philippines, Brazil, Vietnam and Korea etc.2. Strong Anti-jamming/Anti-interference AbilityThe frequency band is adjustable. The sag controller has narrow operating frequency band.The influence of the AC converter and the phase shift trigger for thyristor is not obvious.3. High StabilityAccording to the use of the customers, it can run with free maintenance for a long time and also stay working stably with no zero-point drift.4. Multiple Forms for Signal ProcessingIt can adopt PLC, PI adjusting board or DC drive to realize PID control.5. Easy/Simple for Calibrating and MaintenanceNo adjustable inductance , use multimeter instead of the oscilloscope for calibrating and testing. There is almost no need for maintenance from professionals.There is no need to readjust when replacing the circuit board. Just replace directly and the zero-point will not change.Independent Control of the signals of two channels. There is no interference between the signals. And it is simple and convenient to adjust the balance -point.6. Automatic Tracking of SignalsThe signals will not unsaturated when producing cables of different specifications, it can calibrate automatically.7.VersatilityIt is applicable to the sag control of all the imported & domestic lines and the reconstruction of the old lines.The transmitter and receiver sensor for the reconstructed lines are of compatible use. The adjustment for the mechanical parts is not needed.