The METTLER TOLEDO PTHK is a rugged digital scale terminal (Panther Plus) used to interface analog or DigiTOL® load cells for industrial weighing; it typically supports 100‑230 VAC input and offers digitally filtered display output. Common failure modes include power supply dropout, display flicker or blanking due to capacitor degradation, loss of communication with the load cell (often from a loose connector or cable insulation breakdown), and calibration drift caused by temperature cycling or mechanical shock. First‑check steps: verify 230 VAC input voltage and current draw on the terminal’s PSU; inspect all cables and connectors for corrosion or looseness; review any error codes shown on the display, then perform a quick zero‑tare test to confirm load cell response.[oss-gpt-20b]