1) Functions
The product is integrity of electronic technologies, microcomputer technologies and crane mechanical technologies. It has the following major functions:
F It can automatically detect various kinds of signals related to lifting devices and enter the signals into instruments for micro processing. The signals include: weight signals, height signals, signals of included angle between jib and horizon, etc;
F The instrument can display various kinds of pre-defined parameters related to the working conditions. The parameters include: jib length, rated lifting capacity, actual lifted load, working amplitude, jib’s included angle, etc;
F The system can carry out automatic sampling and real-time tracking of the performance parameters of the lifting device and can use a microcomputer to calculate, compare and determine the parameters and give out acousto-optic alarms when necessary.
F The host computer is universal and can be adapted to various kinds of lifting devices by changing the software, without having to change the host computer. This facilitates mass production. The computer has stored multiple sets of rated load curves, which meets the requirements for infinitive alarming under various working conditions;
2) Major technical parameters
1. Working ambient temperature: －20℃~60℃
2. Working ambient humidity: 95% (25℃)
3. Working voltage: DC 24V ±20%
4. Working mode: continuous
5. Vibration: Acceleration≤5g (g is gravity acceleration)
6. Overall system error: Less than ±5%
7. Overall power consumption: Less than 10W
8. Alarm volume: More than 60db
9. Action error: ＜±3%