Ensure the weighing structure (silo, hopper, or scale platform) is shunted with copper grounding straps to bypass welding currents or lightning surges. Calibration and Configuration Steps
💡 Ensure all electrical connections are isolated before beginning the calibration to prevent signal noise or hardware damage.
In February 2023, Lahti Precision was acquired by the Tamtron Group, a major Finnish provider of weighing technology and digital services. Lahti Precision was subsequently renamed . The TPL-400 continues under the Tamtron brand.
The transmitter is particularly well-suited for: lahti precision tpl400 manual
Operates effectively from -10 to +50 °C.
I can provide the targeted procedures for your maintenance operations. LAHTI PREC - EN - TPL-400 - User - Guide | PDF - Scribd
This section explains how to use the front panel functions, such as: Subtracting container weight. Zeroing: Resetting the scale. Ensure the weighing structure (silo, hopper, or scale
: Detailed instructions for 4-wire or 6-wire load cell connections and electrical power (115/230 VAC or 9–32 VDC).
Place a known test weight onto the scale (ideally at least 10% to 50% of the maximum capacity). Enter the exact value of the test weight into the indicator interface and confirm the span calibration.
Use the contact form on their corporate site. Provide the machine serial number. As of 2024, they charge $45 + shipping for a printed, spiral-bound manual. The PDF remains free. Lahti Precision was subsequently renamed
The device includes two set-point relays (240 VAC, 5A) that support latching, inversion, and hysteresis settings. Digital Filtering: To manage environmental noise, the
: It provides a clear roadmap for the auto-calibration feature, which is a major time-saver for field technicians.
Enter the configuration module using the programmer keys.
uses 2.5 mm screw connectors through bushings for all electrical connections. Supports 230 VAC, 115 VAC, or 9–32 VDC.