Ozone Smell Rises but the Disinfection Report Slips? NL-OZN-4 Ozone Decay and Leakage Bench (dishwasher test equipment)

The ozone disinfecting cabinet closes the tableware wash chain after the dishwasher test equipment drying stage, and the standard sets it two gates at once: ozone concentration inside the cabinet must build to a disinfecting level and hold, while leakage outside during operation must stay under the limit. Both drift the wrong way with use. The generator electrodes erode, so the build-up slows month by month. The door gasket takes a permanent set and the cabinet sealing ages, so leakage climbs. User complaints map onto the two gates exactly: a kitchen that smells of ozone (leakage over limit), or a disinfection report nobody can produce (concentration below level). The line usually measures concentration once on a new unit. Generator decay, aged-seal leakage and the dual limits after a year of use have no number.

What the NL-OZN-4 ozone decay and leakage bench measures

• Four stations with multi-point ozone monitoring inside the cabinet, build-up, hold and purge plotted as one curve
• Outside leakage assessed at the standard distance and logged throughout operation and the post-run period
• Accelerated generator decay by on-off cycling, build-up time and peak concentration trended against cycles
• Door-gasket set simulation: compression aged at real closing force and frequency, leakage before and after compared, sealing margin judged
• UV irradiance monitored in parallel, dual-factor ozone-plus-UV models reported on both channels
• Cavity temperature and humidity recorded, so environmental interference on build-up can be quantified
• Purge time measured: how long ozone takes to fall back to a safe level, matching the real “when to open” question
• Supply and drainage stabilised by the pump test bench module, identical conditions across stations
• Sensor signals on the level sensor life test acquisition chain, long-period trends comparable
• Barcode binding, concentration curves, leakage logs and decay cycles exported per unit for generator and gasket lot comparison

Applicable standards

Safety and hygiene to GB 17988 (disinfecting cabinets for tableware), ozone limits and in-cabinet concentration per GB 28232 (ozone disinfection equipment); structure and safety to GB 4706.1; kill-rate methods per disinfection technical norms. Decay cycles, leakage limits and purge-time criteria can follow the customer standard, sampling to GB/T 2828.

Stations and throughput

Four stations with accelerated decay deliver both limit values across the whole life of a cabinet within a week. The single new-unit measurement becomes a life report with decay curves, hour-by-hour leakage and purge times. Incoming generators, cabinet sealing matching and after-sales ozone-smell or weak-report complaints share one bench.

Manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd. — a non-standard testing equipment manufacturer of ozone decay and leakage benches, dishwasher test equipment, pump test bench ranges, pump performance test systems, level sensor life test machines and washing machine test equipment.

Keywords: pump test bench, pump performance test, level sensor life test, dishwasher test equipment, washing machine test equipment.