Mechanical Dish Washing Resistance Tester PT-WRT01

Standards: EN12875-1, EN 60335-1 EN 60335-2-5, ISO 6059

 

1. Dishwasher Midea P60 capacity: 13 sets

2. Hot water: up to 70 ℃

3. Inlet: equipped with a soft water module and real-time monitoring data;

4. Spray pressure: 29000pa.

5. Circulating temperature controller: PLC+touch screen

6. Cleaning agent dosing mechanism: automatic dosing, measured by weight (dosing mechanism adopts a vibrating plate+weighing system structure, installed on a precision weighing sensor on the top of the dishwasher). Add water quality filter and real-time water quality monitoring device

7. The feed quantity of 0-30G can be set on the screen

8. The dosing adopts a structure of vibrating disc and weighing system

9. Test cycle:

Mode 1: According to clause 8.3 of EN12875-1,

Mode 2: Custom mode, custom settings

When tested according to the ISO 6059 method, the water softener (cation exchanger) can control the hardness c (CaMg) of water to be within 0 3mmol/L and

0.6mmol/L (1mmo/-5.  6 H or 1 "DH-0 Between 1786mmol/L.

10. Heating can meet the heating rate specified in 8.3. c).

11. Fixed water volume: 6.0 ± 0.5L of water per test cycle, with a water pressure between 5N/cm and 100 N/cm (selecting a pump head of 0.3-0.4MPA).

12. The automatic dispensing device can provide the required amount of detergent and rinse solution in each test cycle.

13. Method for uniformly reducing temperature and humidity after automatic door opening or cleaning cycle ends

14. Thermostat accuracy ± 2C

15. The door moving device can automatically execute and repeat the complete cleaning procedure specified in 8.3

Features
1. Using finished dishwasher body and higher quality vulnerable parts
2. The counter records the number of cleaning times as the total number of times a single can be reset to zero and the total cumulative number of times.
3. It can achieve automatic quantitative input of dishwasher powder and blocks according to EN standards. It is necessary to consider avoiding the phenomenon of unstable quantitative input, such as moisture at the powder outlet caused by water vapor. It is recommended to refer to the design of the vibration feeder;
4. After each cycle is completed and the door is opened, an automatic alarm will sound, and manual or automatic reset can be set to enter the next cycle
After setting the number of tests, the alarm reminder can be triggered, and the alarm volume needs to be suitable for human ears;
5. The product's heavy basket and pulling track are designed with high reliability. The basket adopts a partition design and can be used for pot products. The upper basket can support objects weighing 10KG, and the lower basket can support 20KG
6. The bottom of the equipment should be designed with a leak proof tray and drainage function (drainage holes and drainage pipes) to prevent equipment failure from causing bubbles in the testing area
Water phenomenon;
7. All detection data, including test conditions, can be exported via USB, including raw data or test reports that can be exported
The report template needs to be developed, and relevant monitoring data such as temperature, cycle times, and soft water values should be reflected in the report;
8. The testing machine program defaults to the EN 12875 standard program, but it can also be customized to meet the special needs of customers
Testing requirements, such as setting a maximum heating temperature of 80 ºC;
9. The body needs to have protective functions such as spray protection and program protection based on the opening or closing status of the door, for example, when opening the door
When the door frame is not tightly closed, the sprinkler function cannot work;
10. The testing machine has a soft water module for water inlet, which can monitor data in real time;
11. The heating components of the body should consider the matching of heating power to avoid occupying the program's own control due to prolonged heating time
At the same time, the lifespan of the heating components should also be considered, as the timing of the program nodes may not correspond and the test results may not match
The situation. Some vulnerable and consumable parts need to be backed up in several sets for our company to replace.
12. It is recommended to use stainless steel for the main frame.
13. Retain the original function of adding detergent to the dishwasher and meet the requirements of clause 8.3 (3) of EN 12875-1 standard.

Test process
According to clause 8.3 of EN12875-1, the testing cycle should include the following stages
a) Use a water pump to drain the dishwasher.
b)
1) Fill the dishwasher with water (see 5.1):
2) Circulating water for (5 ± 0.5) minutes; Use a water pump to drain the dishwasher.

c) Clean the test specimen in the dishwasher:
1) Fill the dishwasher with (6,0+0,5) liters of water and (24 ± 3) g of cleaning agent (see 5.2) per liter;
2) Heat to (60 ± 2) ºC while circulating water and cleaning agent for (20 ± 1) minutes;
3) Without heating, circulate water and cleaning agent for (3 ± 1) minutes

d) Perform intermediate rinsing on the sample in the dishwasher:
1) Add water to the dishwasher;
2) Circulating water for (3 ± 0.5) minutes;
3) Use a water pump to drain the dishwasher.

e) Finally, clean the sample in the dishwasher:
1) Fill the dishwasher with water,
2) Heating the circulating water to (65 ± 2) ºC;
3) Measure the temperature between 40 ° C and 45 ° C and add 2.5 g to 3.0 g of rinse solution (see 5.2) per (6.0 ± 0.5) liters of water
4) Measure the temperature to reach (65 ± 2) ºC and clean it with a pump

F) Store the test samples in the dishwasher for drying.
1) (3 ± 1) min Close the door
2) (30 1) min Open the door

Design drawing