Sample description
2pcs, 4pcs of a certain outdoor measuring instrument module

Test items
IPX7 immersion test, salt spray test

Test standards
GB/T 4208-2017 Enclosure protection grade IP (code)
GB/T 2423.17-2008 Environmental testing for electrical and electronic products Part 2: Test methods Test Ka: Salt spray

Main instruments and equipment
Immersion waterproof test chamber, salt spray test chamber

Test methods
1. Waterproof test (GB/T 4208-2017 Enclosure protection grade IP (code))
1.1 Check the appearance of the sample before the test. After confirming that there is no abnormality, put the sample into the waterproof test chamber;
1.2 Test conditions: Set the test procedure according to Table 1;

1.3 Check the appearance of the sample after the test.

Table 1

2. Salt spray test (GB/T 2423.17-2008 Environmental testing for electrical and electronic products Part 2: Test methods Test Ka: Salt spray)
2.1 Check the appearance of the sample before the test. After confirming that there is no abnormality, put the sample into the test chamber;
2.2 Test conditions: Set the test procedure according to Table 2;

2.3 Check the appearance of the sample after the test.

Table 2

Test records

1. Samples under waterproof test

2. Samples in salt spray test

Test conclusion

After the waterproof test, no water entered the sample, and after the salt spray test, the sample had no corrosion on the outside.