CLM8 Intelligent Junction Box

IMAGES

The Laumas CLM8 is an intelligent 8-channel junction box for load cells with digital equalization, load distribution analysis, and automatic diagnostics. It supports up to 16 load cells in parallel and communicates via RS485/RS232 (ModBus RTU), with an optional Ethernet TCP/IP port. Available in DIN rail, IP67 stainless steel, and polycarbonate enclosures.

PRODUCT DETAILS

The CLM8 is a sophisticated intelligent junction box designed to connect and manage up to 8 independent load cell channels — expandable to 16 by linking two CLM8 units — making it the ideal solution for precision multi-cell weighing systems such as weighbridges and large platform scales.

Unlike passive summing boxes, the CLM8 monitors each load cell individually, enabling real-time diagnostics, digital equalization, and load distribution analysis across all active channels. This means technicians can identify a failing or out-of-balance cell without removing the scale from service, reducing downtime in critical operations.

The CLM8 connects directly to PC/PLC systems or W series weight indicators via RS485/RS232 and supports ModBus RTU communication, with optional Ethernet TCP/IP for remote supervision through its integrated web application. The backlit alphanumeric LCD display and 4-key keyboard allow direct on-site configuration and monitoring. Available in three enclosure formats — DIN/Omega rail for panel mounting, IP67 AISI 304 stainless steel for harsh environments, and IP67 polycarbonate — the CLM8 adapts to virtually any installation requirement.

Most Common Applications: Large platform scales, tank and hopper weighing, multi-point industrial floor scales, automated weighing, truck scales, weighbridges.

Channels

8 independent (16 with 2 x CLM8)

Number of Load Cells

Up to 16 (350 Ω, 4/6-wire)

Input Cable Fittings

RS485 / RS232 terminals

Output Cable Fittings

RS485 / RS232 terminals, optional Ethernet TCP/IP

Enclosure Material

DIN rail; Naked Board Only; Stainless Steel AISI 304; Polycarbonate with Transparent Lid

IP Rating

IP67 (Stainless and Polycarbonate versions)

Lightning Protection

Dimensions

DIN: 125 x 92 x 52 mm (4.9 x 3.6 x 2.0 in); Naked Board: 151 x 72 x 30 mm (5.9 x 2.9 x 1.2 in); Stainless Steel: 200 x 148 x 45 mm (7.9 x 5.8 x 1.8 in); Polycarbonate: 170 x 140 x 95 mm (6.7 x 5.5 x 3.7 in)

Weight

What our customers say