WSM-AS Gate Opening and Load Monitor

The WSM-AS Gate Opening (Height) and Load Monitor is an automated measurement and control instrument specifically designed to measure, display, and control the lifting weight and opening (height) of hoisting equipment—such as gate hoists, gantry cranes, and overhead cranes. This instrument is also referred to as a Gate Height and Load Monitor, Integrated Hoist Monitoring Instrument, or Hydropower Station Gantry Crane Opening and Load Monitor.

The WSM-AS Gate Opening (Height) and Load Monitor enables the digitization of load weight and height (opening) indications, as well as the automation of control functions for hoisting equipment; it is particularly suitable for monitoring winch-type gate hoists requiring the simultaneous monitoring of two weight channels and one height channel.

**Monitoring Accuracy:** Measurement Range: Gate opening 0–99.99 meters (with a display resolution of 0.01 meters/1 cm); Weight: 0–999.9 tons. The system supports configurable standard 4–20 mA analog outputs and RS485 communication, and can be expanded to accommodate up to 8 control signal outputs. Feedback from numerous hydropower gate users across multiple river basins consistently indicates excellent performance data.

**Ease of Use:** Featuring a proprietary microcontroller-based system, the device offers simple and intuitive operation. Limit control points can be configured to precisely match actual on-site conditions. Its embedded installation design is specifically tailored for seamless integration into the electrical control cabinets of hydropower stations.

**Operational Reliability:** Drawing upon years of extensive practical experience, the instrument has undergone multiple R&D iterations to ensure robust performance. Its design incorporates ample redundancy and tolerance for expansion, taking the specific application environment into full consideration. Prior to shipment, every unit undergoes rigorous, multi-layered instrument testing and quality control inspections. Housed in a metal enclosure that provides strong resistance to electromagnetic interference, the device features built-in anti-jitter delay, power-off memory, and data protection functions, ensuring a normal service life of well over a decade.