1. According to the standard:

GB4144-2010 Household and similar reverse osmosis drinking water treatment purifier 5.4 Performance

GB34914-2017 Minimum allowable value of water efficiency and water efficiency grades for reverse osmosis drinking water treatment purifiers

GBT 30307-2013 Household and similar drinking water treatment equipment

2. Specification and model: JS-XL

3. Test items:

The system can test the performance of various household water purifiers and small water purifiers, water purifiers: Terminal water output, total water purification, water purification flow, desalination rate, recovery rate, etc.

4. Technical parameters:

System pressure: 0-0.25MPa, pressure accuracy: 0.01MPa

Pressure sensor range: 0-0.5Mpa, accuracy: 0.5%, actual test measurement: 0.12MPa

System drainage flow, system water supply flow: 0-2000l/h

Test switching time: ＜0.5s, timing accuracy: ＜0.1s

System temperature: 25±1°C

Temperature sensor accuracy: 0.5%, display accuracy: 0.1°C

Weighing measurement range: 0-5kg, accuracy: 0.1g

Water discharge specification of test piece: 0-100 L/h

The water supply branch of the test piece can be expanded: 1-20 stations, equipped with 1 set of testing device

Working conditions: Temperature 20°C-30°C, humidity 45~75%, good ventilation

Touch screen control, automatic data acquisition, automatic test control

Pressure regulation function: The system water supply pressure is adjustable, and the frequency conversion is manually adjusted according to the set value. Adjust the water pump speed to make the pump output pressure 0-0.25mpa, which can be used for constant pressure test under different working conditions.

Temperature control function: Test tank automatic temperature control 25±1°C

Automatic water supply switching function: The system uses the liquid storage tank to install the electric valve to switch the water supply, when one of the tank A reaches the lower level, the other tank B outlet valve is automatically opened, close the outlet solenoid valve of the storage tank, open the inlet valve of the tank A at the same time, the tank A starts to enter water, close the water inlet when the liquid level of tank A reaches the upper level. The storage tank B is also carried out in this order, and the two storage tanks of the AB are alternately so that the solution is continuously supplied to the water purifier by the feed water pump.