Specialized manufacturer of Digital Pressure Meters and Load Cells

VALCOM CO.,LTD.

Protection (IP) Rating

First digit

Compliant with IEC standard (IEC60529 [IEC529:1989-11])

The methods of IP testing by VALCOM comply with the IEC standard (IEC60529 [IEC529:1989-11]). Confirm the sealing performance according to the actual use environment or conditions in advance.

IEC stands for International Electrotechnical Commission.

Rating Degree of protection
0 Non-protected
1 Protected against rigid sphere of 50 mm in diameter. Adequate clearance shall be secured between the back of a hand and hazardous parts.
2 Protected against rigid sphere of 12.5 mm or more in diameter. Adequate clearance shall be secured between the back of a hand and hazardous parts.
3 Protected against solid stick of 2.5 mm in diameter. Adequate clearance with hazardous parts shall be secured.
4 Protected against wire of 1 mm or more in diameter. Adequate clearance with hazardous parts shall be secured.
5 Ingress of dust cannot be prevented completely, but the quantity of deposited dust shall not impair the intended performance or safety of the equipment.
6 No dust penetration.

Second digit

Rating Degree of protection Testing method (Always use freshwater.)
0 No particular protection Not protected against water immersion No test
1 Dripping water (vertical falling drops) shall have no harmful effect. Using a water dripping test apparatus, drip water for 10 minutes.
2 Vertically dripping water shall have no harmful effect when the equipment is at an angle up to 15° from its normal position. Using a water dripping test apparatus, drip water on the equipment tilted by 15°. 4 positions, 2.5 minutes each.
3 Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect. Using the test apparatus shown right, spray water to the equipment at any angle up to 60°. 1 minute per 1 m² of surface area. At least 5 minutes in total.
4 Water splashing against the component from any direction shall have harmful effect. Using the test apparatus shown right, splash water from any direction. 1 minute per 1 m² of surface area. At least 5 minutes in total.
5 Water projected by a nozzle against the equipment in any direction shall have no harmful effects. Using the test apparatus shown right, apply water jet in any direction. 1 minute per 1 m² of surface area. At least 3 minutes in total.
6 Water projected in powerful jets against the equipment from any direction shall have no harmful effect. Using the test apparatus shown right, apply water jet in any direction. 1 minute per 1 m² of surface area. At least 3 minutes in total.
7 Ingress of water in harmful quantity shall not be possible when the equipment is immersed in water under defined conditions of pressure and time. Equipment up to 850 mm in height: Submerge it in a tank of 1 m in depth for 30 minutes. Equipment more than 850 mm in height: Submerge it in water for 30 minutes. Make sure the water depth to the top of the equipment is more than 150 mm.
8 Ingress of water in harmful quantity shall not be possible when the equipment is continuously immersed in water under the conditions severer than those of rating 7. To be determined through discussion between manufacturer and user.