WEATHERmeter Waterproofing standards

The WEATHERmeter has been tested by a certified independent lab.

 

It has a specification of IP44

Water splashing against the enclosure from any direction shall have no harmful effect.

Object size protected against particle regression >1 mm

 

Here is a full list if IP codes:

 

Solid particle protection

The first digit indicates the level of protection that the enclosure provides against access to hazardous parts (e.g., electrical conductors, moving parts) and the ingress of solid foreign objects.

LevelObject size protected againstEffective against
0 No protection against contact and ingress of objects
1 >50 mm Any large surface of the body, such as the back of a hand, but no protection against deliberate contact with a body part
2 >12.5 mm Fingers or similar objects
3 >2.5 mm Tools, thick wires, etc.
4 >1 mm Most wires, screws, etc.
5 Dust protected Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment.
6 Dust tight No ingress of dust; complete protection against contact (dust tight)

Liquid ingress protection

The second digit indicates the level of protection that the enclosure provides against harmful ingress of water.

LevelProtected againstEffective againstDetails
0 Not protected
1 Dripping water Dripping water (vertically falling drops) shall have no harmful effect. Test duration: 10 minutes

Water equivalent to 1 mm rainfall per minute

2 Dripping water when tilted up to 15° Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15° from its normal position. Test duration: 10 minutes

Water equivalent to 3 mm rainfall per minute

3 Spraying water Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect. Test duration: 5 minutes

Water volume: 0.7 litres per minute
Pressure: 50–150 kPa

4 Splashing of water Water splashing against the enclosure from any direction shall have no harmful effect. Test duration: 5 minutes

Water volume: 10 litres per minute
Pressure: 50–150 kPa

5 Water jets Water projected by a nozzle (6.3 mm) against enclosure from any direction shall have no harmful effects. Test duration: at least 3 minutes

Water volume: 12.5 litres per minute
Pressure: 30 kPa at distance of 3 m

6 Powerful water jets Water projected in powerful jets (12.5 mm nozzle) against the enclosure from any direction shall have no harmful effects. Test duration: at least 3 minutes

Water volume: 100 litres per minute
Pressure: 100 kPa at distance of 3 m

6K Powerful water jets with increased pressure Water projected in powerful jets (6.3 mm nozzle) against the enclosure from any direction, under elevated pressure, shall have no harmful effects. Test duration: at least 3 minutes

Water volume: 75 litres per minute
Pressure: 1000 kPa at distance of 3 m

7 Immersion up to 1 m Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion). Test duration: 30 minutes

Tested with the lowest point of the enclosure 1000 mm below the surface of the water, or the highest point 150 mm below the surface, whichever is deeper.

8 Immersion beyond 1 m The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects. Test duration: continuous immersion in water

Depth specified by manufacturer, generally up to 3 m

9K Powerful high temperature water jets Protected against close-range high pressure, high temperature spray downs. Test duration: -

Water volume: 14–16 litres per minute
Pressure: [8000–10000 kPa / 80–100 Bar] at distance of 0.1–0.15 m
Water temperature: 80 °C

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