SZ-AB100P Articulated Boom Crane LMI

Product Overview
The SeeZol SZ-AB100P Articulated Boom Crane Load Moment Indicator (LMI) is an intelligent safety monitoring instrument that integrates measurement, control and micro-computer technology. It reflects boom angle, boom length, lifting weight and overload status on the cab display in real time, keeping the folding-boom crane within its safe operating envelope. Compared with the SZ-AB100, the SZ-AB100P features optimized software—revised angle calibration and weight-input methods—for higher data accuracy and stability. When the crane approaches or exceeds the allowable limit, the system triggers audible/visual alarms and sends relay outputs to cut dangerous motions (e.g. hoisting).
Applicable Models
● Articulated boom trucks / Truck-mounted folding boom cranes
● Lifting equipment featuring a folding boom that requires monitoring of the dual angles (main boom and folding boom) and boom length
Key Features
● Real-time display of current load / maximum allowable load at current position (dual-value display)
● Real-time load percentage bar graph (yellow by default; turns red when thresholds are exceeded)
● 2D vehicle attitude display showing height, working radius, boom/articulated arm angles, and boom length
● Audible and visual alarms + three-color indicator light + relay control output (cuts off hazardous movements when thresholds are exceeded)
● Alarm data logging (trigger/clear times, severity level, source, and values); data exportable via USB drive
● Day/night display mode switching
● System language in Chinese and English (other languages customizable)
● Independently configurable percentage thresholds for pre-alarms and alarms
System Parameters
|
Parameter |
Specification |
|
Operating Voltage |
DC 12–36V |
| Operating Temperature |
−30℃ ~ +80℃ |
|
Relative Humidity |
<95% (25℃) |
| Operating Mode |
Continuous |
|
Power Consumption |
<10W |
| Control Output Capacity |
10A AC220V / 10A AC36V |
|
System Error |
≤ ±5% |
| Alarm Error |
≤ ±5% |
Main Components
- Indicator
- Weight Sensor
- Angle Sensor
- Length Sensor
- Three-Colour Light

Application Case
A forestry operator deployed SeeZol articulated-boom LMIs on truck-mounted cranes, preventing overload during log handling where boom geometry changes constantly.






