White Film on Dishes After Every Wash, Salt Box Not Drawing Brine? NL-SFT-6 Dishwasher Water Softener Regeneration and Brine-Draw Endurance Bench, Six Stations (pump test bench)

Dishwashers that leave limescale film on dishes and fogged glassware after months in the field, while the built-in softener still reads soft at the bench, usually turn out to have a salt box that no longer draws brine and a regeneration cycle out of rhythm; clumped resin, a stuck regen valve and a failed siphon quietly cut softening capacity. This is one of the harder dishwasher service problems to reproduce, because incoming checks usually only confirm that salt can be loaded and the water path is open, with no regeneration cycling and no brine-draw endurance testing — so the problem takes months to appear once the machine is in use.

What the NL-SFT-6 dishwasher water softener regeneration and brine-draw endurance bench measures

• Six stations in parallel, regeneration cycling: repeated regeneration at set feed-water hardness and exhausted-capacity conditions, tracking outlet hardness, regeneration period and brine-draw decay trends (sharing the constant-flow water supply and conductivity metering module of our pump test bench)
• Brine-draw endurance: siphon and jet draw actions cycled tens of thousands of times, quantifying draw time, salt-level drop and regen-valve consistency
• Resin clumping and differential-pressure monitoring, with backwash expansion logged automatically
• Salt-level and low-salt alarm plus salt-valve sealing tests, reproducing both no-draw and salt-leak failures
• Regeneration water use and brine concentration testing for regen-efficiency and salt-consumption metrics
• Barcode and batch binding, with raw data exported per unit for the record

Applicable standards

GB 4706.1 (household appliances – general safety), GB 4706.25 (dishwashers – particular requirements), IEC 60335-2-5 (dishwashers), GB/T 20290 (household electric dishwashers – methods for measuring the performance) and GB/T 2828 sampling; feed-water hardness follows the duty condition, and regeneration criteria can follow the customer’s standard and the machine’s requirements.

Stations and throughput

Six stations running 24/7 compress the months an operator would spend cycling whole machines and lab-testing hardness week by week into a few weeks, with regeneration period and brine-draw endurance rechecked cycle by cycle — so incoming lots and end-of-line machines can both be sampled batch by batch, stopping limescale film and failed brine draws before shipment.

Manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd. — a non-standard testing equipment manufacturer of dishwasher water softener regeneration and brine-draw endurance benches, pump test bench and pump performance test systems, level sensor life test machines, dishwasher test equipment and washing machine test equipment.

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