When evaluating the running state of a turbine, the swing of the relative axis is very important. It directly reflects the radial movement of the rotor relative to the bearing seat, is a basic index to assess the running quality of the unit, many mechanical failures such as rotor unbalance, misalignment, bearing wear can be detected from this. When measuring shaft swing, the eddy current sensor is installed on the bearing housing to carry out relative measurement. The information of shaft swing can not only protect the machine from being stopped, but also be used to diagnose and analyze the machine fault. VB-Z720 water machine swing monitor is a double-channel shaft swing monitor instrument. It can monitor the radial vibration and radial clearance of the shaft of two independent channels online for a long time, and receive signals from two eddy current sensors. It is suitable for various types of water wheel machinery.

· Input power protection function.

· You can set alarm parameters, range, relay delay and other parameters by pressing the button.

· The set parameters will not be lost after power loss.

· Sensor break detection, sensor break, block relay output, OK light out.

· Sensor power current limiting protection.

· Sensor signal buffered output.

· Lock the relay output within 10 seconds after power-on.