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Protection - Glossary - Flow Sensors

Protection

Degree of protection against water, human body and solid foreign material.
Protection degree is specified as per IEC (International Electrotechnical Commission).

IEC standard

Second figure : Protection against water penetration
First figure : Protection against human body and solid foreign material

Protection degree specified by the first figure

First figure Description
0 No protection
1 Protection against contact with internal live parts by a human hand (ø50 mm ø1.969 in)
2 Protection against contact with internal live parts by a human finger (ø12 mm ø0.472 in)
3 Protection against contact with internal live parts by a solid object more than 2.5 mm 0.098 in in thickness or diameter
4 Protection against contact with internal live parts by a solid object more than 1.0 mm 0.039 in in thickness or diameter
5 Protection against dust penetration which can affect operation
6 Complete protection against dust penetration

Protection degree specified by the second figure

Second figure Description
0 No protection
1 No harmful effect due to vertically falling water drops
2 No harmful effect due to water drops falling from a range 15° wider than the vertical
3 No harmful effect due to water drops falling from a range 60° wider than the vertical
4 No harmful effect due to water splashes from any direction
5 No harmful effect due to direct water jet from any direction
6 No water penetration due to direct water jet from any direction
7 No water penetration due to immersion in water under specified conditions
8 No water penetration during immersion, even under conditions that are more harsh than the ones in No.7
Note :The IEC standard prescribes test procedures for each protection degree given above. The protection degree specified in the product specifications has been decided according to these tests.

IP67G / IP68G

This specifies protection against oil in addition to IP67 / IP68 protection of IEC standards. It specifies that oil drops or bubbles should not enter from any direction.

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