The system can monitor whether actual load exceeds the rated one. When the actual load is
heavier than or equal to 90% of the rated one, the intelligent monitoring device will send out
pre-warning (Pre-warning light is on, and the buzzer chirps continuously). When the
actual load is equal to 100% of the rated one, the intelligent monitoring device will send out alert
signal and rapidly cut off all crane movements that will increase the load torque .
The system factually displays with icons to show whether the crane is lifting with main
boom, jib or rooster sheave (see Fig. 1.1 / 1.2 / 1.3), and displays the boom length (L), boom
angle (A), lifting height, working radius, rated lifting capacity, actual lifting capacity and
proportion of moment in real time. At the bottom right corner of the screen is displayed the
following information: outrigger status, the 5th outrigger status, reeving, front and rear area
condition and wind force etc.