Views: 0 Author: Site Editor Publish Time: 2026-09-01 Origin: Site
According to the International Coffee Organization (ICO) 2024 data, global daily coffee consumption exceeds 3 billion cups, with over 60% produced by commercial coffee machines. High-frequency brewing means the water tank level detection action runs hundreds of times per day. Traditional float switches jam more easily in narrow commercial tanks, and optical windows are fogged by milk foam steam within two weeks. After-sales data shows level-related faults account for about 18% of coffee machine repairs, manifesting as overflow short-circuits or dry-boil damage to heating tubes.
Shenzhen Xingkechuang Technology Co., Ltd.'s XKC-Y29A works on the capacitive principle. The electrode mounts externally on the tank side wall — the wall plus liquid form a variable capacitor, and the MCU continuously samples the capacitance curve. Commercial environments have large temperature swings; built-in temperature compensation offsets the dielectric drift caused by water temperature changes. Milk residue, condensation, and biofilm all produce ΔC values below the threshold. The probe is IP67 rated, operates on DC 12–24V, responds within ≤100ms, controls the inlet valve at the full point and the heating relay at the low point — one sensor, two outputs.
Chain coffee shops and office coffee machines using this solution see failure rates drop from "float switches inevitably degrade within 18 months" to stable-from-factory.
