The programming can be performed using either an external hand-held device (model LP2) or a built-in programmer with an LCD display (model LP1). The programmer allows you to set limit values, pre-act values, hysteresis, and latching functions. The device also provides support for auto-taring (zeroing out the container weight) and peak-hold, which can be activated via an external volt-free contact closure.
You can find a digital version of the user guide on platforms like or a step-by-step calibration procedure for your setup? LAHTI PREC - EN - TPL-400 - User - Guide | PDF - Scribd
Since a direct link to the PDF manual was not publicly accessible, the most reliable way to obtain it is to contact the manufacturer directly:
When weight readouts drift, or analog signals drop, the documentation recommends working through the following diagnostic steps: Observed Symptom Probable Cause Action/Remedy Main power supply failure or incorrect terminal routing across the core power inputs. Erratic or Drifting Weight Readings Severe mechanical binding or moisture in the junction box lahti precision tpl400 manual
Features auto-calibration and two-point calibration (0 and maximum load). 2. Installation Guidelines Go to product viewer dialog for this item.
: Navigate to the output scaling parameters ( ANL ). Map the minimum system capacity (typically 0 kg) to the baseline output (e.g., 4 mA) and map the maximum structural capacity to the full-scale output limit (e.g., 20 mA).
I can provide step-by-step wire-mapping or custom parameter values for your installation. Share public link The programming can be performed using either an
: IP65 robust casing suited for field installation .
: High precision performance with an accuracy class of 0.05% .
Finding the TPL-400 and specific documentation can be done through several channels. You can find a digital version of the
| Menu Option | Function | Typical Setting | | :--- | :--- | :--- | | | Printhead heat (energy level) | Start at 10-15 (out of 30). Adjust up for poor print. | | PRINT SPEED | Inches per second (IPS) | 4-6 IPS for general use; 2-3 IPS for dense barcodes. | | MEDIA TYPE | Gap (die-cut), Black Mark, or Continuous | Match your label stock. | | SENSOR CAL | Auto-calibrates label length detection | Run whenever changing media. | | INTERFACE | RS232, USB, Parallel | Set to match your host computer. |
is a microprocessor-based amplifier designed for field installation. It converts low-level signals from load cells into standard industrial signals Key Features High Accuracy : Typically of full scale. Calibration : Built-in auto-calibration and scaling functions. Enclosure Options
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For high-moisture or dusty environments, ensure the IP65 stainless steel or cast casing is properly sealed to maintain environmental protection. Electrical Connections