TLB4 Weight Transmitter with 4 Input Channels

The Laumas TLB4 is a DIN-rail weight transmitter with 4 load cell channels, a 6-digit LED display, and support for up to 16 load cells (350 Ω). It communicates via RS485 and supports multiple fieldbus options including Modbus RTU, Modbus/TCP, EtherNet/IP, PROFINET, EtherCAT, and more.

PRODUCT DETAILS

The TLB4 is a high-performance weight transmitter designed for applications that require simultaneous, independent monitoring of up to 4 load cell channels – all while displaying the total combined weight. It is the ideal solution for multi-point weighing systems such as platform scales, tank weighing, and silo monitoring, where per-corner or per-axis diagnostics and load distribution analysis are essential for process control and quality assurance.

In industrial automation environments, the TLB4 connects directly to a PLC via its optoisolated 16-bit analog output or via any of its extensive fieldbus options – Modbus RTU, Modbus/TCP, EtherNet/IP, PROFINET IO, Profibus DP, EtherCAT, CANopen, DeviceNet, CC-Link, POWERLINK, SERCOS III, and Ethernet TCP/IP. Its digital equalization feature eliminates the need for a junction box, simplifying commissioning of multi-cell systems. Built-in single-channel overload detection, tilt compensation up to ±10° via inclinometer, and an archive of the last 50 significant events support both preventive maintenance and compliance in legal-for-trade applications.

The TLB4 mounts on an Omega/DIN rail (space-saving vertical form) or on a front panel with the included fixing kit. Configurable via the free Instrument Manager PC software, it supports theoretical and real calibration, preset tare, semi-automatic zero, gross weight tracking, and a single-product batching program – making it equally suitable for batch weighing, filling, and dosing operations in food, chemical, and Original Equipment Manufacturer (Original Equipment Manufacturer (OEM)) industries.

Most Common Applications: Multi-cell platform and floor scales, silo and tank weighing, batching and dosing systems, crane and hopper weighing, industrial multi-point weighing.

Input Channels

4

Load Cell Inputs

Up to 16 (350 Ω)

Output Signal

0-20 mA, 4-20 mA, 0-10 V, 0-5 V, ±10 V, ±5 V

Communication

RS485 Modbus RTU, Modbus/TCP, Ethernet/IP, PROFINET IO, Profibus DP, EtherCAT, CANopen, DeviceNet, CC-Link, POWERLINK, SERCOS III, Ethernet TCP/IP

Relay Outputs

3 relay max 115 VAC / 150 mA (UL: max 30 VAC, 60 VDC / 150 mA)

Digital Inputs

2 digital inputs, 5 to 24 VDC PNP

Display

6-digit 8 mm height semi-alphanumeric LED, 6 signalling LEDs

Operating Temperature

-20°C to +60°C (-4°F to +140°F)

Storage Temperature

-30°C to +80°C (-22°F to +176°F)

Conversion per second

600

Power Supply

12 to 24 VDC ±10%, 5 W

IP Rating

IP30 (front panel)

Dimensions

4.5 x 1.0 x 4.7 in (115 x 26 x 120 mm)

Approvals

UL

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