Desktop Weight Indicator for Industrial Weighing and Packaging Systems

The Laumas WTAB-2G is a high-precision desk-mount weight indicator designed for industrial weighing, packaging, piece counting, and batching applications. Equipped with a 240x128 pixel graphic LCD, 27-key tactile keypad, and advanced connectivity options, the WTAB-2G offers robust integration with automation networks, PLCs, barcode systems, and remote displays. It supports up to 8 load cells and includes IP40-rated D-SUB connectors, real-time clock with battery backup, and WiFi, USB, RS485, and Ethernet interface options. This powerful unit ensures accurate data capture, fast conversions, and extensive programmability for demanding process control environments.

Key Features

• Display: Large backlit LCD graphic screen (240x128 px)
• Keyboard: 27-key tactile front panel for fast input and control
• Mounting: ABS desktop housing (315x170x135 mm) with IP40 protection
• Load Cell Support: Up to 8 x 350 Ω with 4/6 wire connection
• Inputs/Outputs: 5 relay outputs, 4 digital inputs, optional 16-bit analog output
• Ports: RS232/RS485, USB, CANopen, Modbus RTU/TCP, Profibus DP, Profinet IO, Ethernet/IP
• Calibration: Real and theoretical calibration with up to 5 linearisation points
• Weighing Functions: Gross, net, total, tare, peak, prepack checks, count mode
• Power Supply: 12–24 VDC standard with optional 12.2 V battery backup
• Built-In Clock: Real-time clock with battery for timestamping and traceability

Main Functions

• Weight display with gross/net indication and preset tare
• Real-time statistics for pre-packaged goods control
• Digital filtering to stabilise readings in dynamic environments
• Display of peak values and totalised weight
• Piece counting, batching, and data export via USB
• Barcode and keyboard data entry for seamless operator input
• 12 programmable setpoints via keypad or selector switch
• WiFi remote control and monitoring (optional module)

Certifications

• OIML R76, MID (WELMEC), CE, UKCA, UL, EAC, NMI (Australia)
• Complies with Eurasian and Russian standards for legal-for-trade use
• Legal weight indication with Class III or IIII accuracy

Interfaces & Expansion Options

• Analog Output: 16-bit module with ±10V, 0/4–20 mA options (OPZW1ANALOGICA)
• Additional Serial Port: RS485 expansion (OPZW1RS485)
• USB Data Logging: Plug-in support for export of weighing data and alarms (OPZWUSBD89)
• WiFi Module: Remote supervision and control via web interface or Modbus RTU (OPZWRADIOTAB)
• Fieldbus Protocols: Modbus TCP, Profinet IO, CANopen, DeviceNet, Ethernet/IP, Profibus DP
• Alibi Memory: Legal-for-trade logging of weighments (OPZWALIBI)

Accessories & Mounting Options

• Optional integrated thermal printer with paper roll support (OPZWPRTABETA)
• Thermal paper rolls (standard and adhesive) available separately
• 12.2 V rechargeable battery pack for mobile or backup applications (OPZWBATTWTAB)

Downloads & Resources