IP67 Standard

The IP Standard (Ingress Protection) is an international classification system defined by IEC 60529. It specifies the level of protection provided by electrical and electronic equipment enclosures against the ingress of solid objects (such as dust) and liquids (such as water). The IP rating is expressed as IP followed by two digits, for example IP65.

• First digit (0–6): Protection against solid objects and dust
• Second digit (0–9): Protection against water

In the weighing industry, IP ratings are critically important because weighing equipment is often installed in harsh industrial environments. Components such as load cells, weighing indicators, junction boxes, floor scales, and truck scales are exposed to dust, humidity, washdown cleaning, rain, or even flooding.

An appropriate IP rating ensures:

• Accuracy and stability of weight measurement
• Long‑term reliability of electronic components
• Reduced maintenance and downtime
• Compliance with industrial, food, pharmaceutical, and outdoor installation requirements

For example, food and pharmaceutical weighing systems require high IP protection due to frequent washdowns, while grain silos or cement plants require strong dust protection. Choosing the correct IP class is therefore a key design and purchasing decision in any weighing system.

IP67: Protection Against Immersion (Temporary)

• Protected against the effects of temporary immersion in water. Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (typically up to 1 meter depth for 30 minutes).
• This test is static immersion. The depth and duration are specified by the manufacturer and the standard test parameters (e.g., the actual depth might be slightly less than 1m if the pressure exerted by the equipment itself changes the internal volume significantly).
• Ideal for scales installed in pits (like floor scales) that might experience brief flooding, or equipment placed outdoors that could be submerged during a severe weather event (e.g., temporary inundation).