PM-LD01A Weight Indicator with Analog Output

High-Precision Weight Indicator and Load Cell Controller

The PM-LD01A is an advanced industrial weight indicator and load cell controller designed for weighing systems, force measurement applications, and industrial process control. As the enhanced version of the PM-LD01, it combines high-accuracy weight measurement, programmable control functions, and analog signal retransmission in a single compact device.

Equipped with a high-performance 24-bit A/D converter and advanced hardware and software filtering techniques, the PM-LD01A achieves a resolution of up to 1:100,000, ensuring stable and reliable operation even in electrically noisy industrial environments.

In addition to accurate weight indication, the PM-LD01A can convert load cell signals into industry-standard analog outputs, including voltage and current signals, allowing seamless integration with PLCs, HMIs, SCADA systems, and other industrial automation equipment.

The dual-row 7-segment display provides clear visualization of weight values, parameters, relay status, and system diagnostics, while programmable front-panel keys simplify operation and configuration.

The PM-LD01A is an ideal solution for packaging machines, filling systems, batching applications, silo and tank weighing, hopper weighing, conveyor weighing systems, industrial scales, and force measurement equipment.

Key Features

• Configurable analog outputs: 0–5 V, 0–10 V, 0–20 mA, 4–20 mA
• Five relay outputs for programmable setpoint control
• Three user-configurable digital inputs
• Isolated RS485 communication with Modbus RTU / ASCII support
• Wide RS485 baud rate range from 2400 to 230400 bps
• Dual-row 6-digit 7-segment display
• Status LEDs for system monitoring
• Programmable front-panel keys for Tare, Zero, Tare Reset, and custom functions
• Wide sampling rate range for dynamic weighing applications
• Weight measurement resolution up to 1:100,000
• Supports calibration storage for up to five load cells
• Automatic calibration without reference weights
• Load cell output voltage monitoring for diagnostics and testing
• Operating temperature range: −30°C to +50°C

Typical Applications

• Packaging and filling machines
• Bag filling systems
• Conveyor weighing systems and production line check weighing
• Overhead weighing systems, including cranes, hoists, elevators, and slaughterhouse rail scales
• Force measurement applications for tension and compression testing
• Batching and mixer systems in asphalt plants, concrete plants, food processing, pharmaceutical, and petrochemical industries
• Silo and tank weighing systems
• Hopper weighing applications in food and chemical industries
• Dynamic vehicle weighing systems