TLKWF WiFi Weight Transmitter


Laumas TLKWF Wi-Fi weight transmitter

The TLKWF combines load-cell signal processing, a local display and Wi-Fi communication in an enclosed unit. It suits weighing installations where operators need to see the weight at the equipment while data is also made available through a compatible wireless network.

A backlit display and four-key keypad support local setup and checking during commissioning or maintenance. The enclosed format is useful beside tanks, hoppers, platforms and machinery where a panel-mounted DIN-rail transmitter would be less convenient.

Check Wi-Fi coverage, network compatibility, enclosure requirements and the load-cell connection before ordering. Wireless performance will depend on the installation and surrounding equipment.

Sale price£286.00

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Product specification

Compare model specifications.

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Technical Specification

Power supply and consumption
12–24 VDC ±10%; 2 W
Load cell connection
Up to 8 × 350 Ω load cells; 4- or 6-wire; 5 VDC / 120 mA excitation
Measurement range
±39 mV
Load cell sensitivity
±7 mV/V
Linearity and thermal drift
<0.01% of full scale; thermal drift <0.0005% of full scale/°C
A/D converter and conversion rate
24 bit (16,000,000 points); 4.8 kHz; up to 300 conversions per second
Wired communication
RS232 and RS485; 2,400 to 115,200 bit/s; Modbus RTU and Laumas ASCII protocols
Wireless communication
2.4 GHz Wi-Fi with serial tunnel mode and integrated web server; up to 100 m line of sight
Digital inputs and relay outputs
2 optoisolated PNP inputs, 5–24 VDC; 4 relay outputs, max 115 VAC / 150 mA
Display and enclosure
Backlit two-line LCD; display range ±999999; IP67 wall-mounted case, 170 × 80 × 65 mm
Operating conditions and approval
−20 to +60°C; storage −30 to +80°C; max 85% RH; OIML R76:2006, class III, 3 × 10,000 divisions

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Applications

Wireless tank and hopper weighing

Provide a local weight display while passing data through a compatible Wi-Fi installation.

Sites where communication cabling is difficult

Reduce the need for a new serial data cable between compatible parts of the weighing system.

Remote process monitoring

Make weighing information available to compatible networked equipment without losing local indication.

Weighing-system upgrades

Add Wi-Fi communication to a suitable load-cell installation while retaining local setup controls.

Features

Integrated Wi-Fi communication

The TLKWF provides wireless communication for compatible Laumas weighing and control systems.

Local display and keypad

A backlit two-line LCD and four-key keypad allow the weight and setup information to be checked locally.

Protected field enclosure

The electronics are housed in an IP67 wall-mounted case with sealed cable entries.

Serial connectivity

RS232 and RS485 connections support compatible serial equipment as well as the Wi-Fi link.

FAQs

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