Water Level Switch Failing Before 300,000 Cycles? NL-LVS-8 Level Sensor Life Test Machine Runs Eight Stations

Water purifiers rely on float-type level switches for high and low level protection. Once the contacts oxidise, the operate point drifts or the float sticks, the machine alarms, cycles repeatedly, or in the worst case overflows or runs dry. Life cannot be judged by a single spot check — only accelerated life testing yields reproducible data.

What the NL-LVS-8 level sensor life test machine measures

• Eight stations cycling in parallel with automatic action counting and failure detection
• Consistency of the operate / release point (liquid level or pressure)
• Contact resistance drift across the whole service life
• Life under high and low temperature and high humidity
• Real-time data logging with automatic stop and failure record

Applicable standards

IEC 60730-2-8 (automatic electrical controls), IEC 60335-2-5 (dishwashers), IEC 60335-2-7 (washing machines), GB 4706 series household appliance safety, plus customer-specific life criteria.

Stations and throughput

Eight-station and sixteen-station configurations, designed for 24/7 continuous running — validation that used to take months is completed in days.

Manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd. — a non-standard testing equipment manufacturer of level sensor life test machines, pump test benches and washing machine test equipment.

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