The HERMetic DIP Type 2 is a specialized tool designed to verify that the bottom of closed and inerted tanks is dry and free of deposits following crude oil washing. It features a graduated brass or stainless steel weight attached to a graduated stainless steel tape, which is wound on a reel, and includes an adapter for connecting to a HERMetic valve. This device operates with minimal gas escape from the tank, ensuring compliance with I.M.O. requirements for tanker safety and pollution prevention. The provided Operation and Service Manual guides users in the safe and correct use of the instrument. However, the manufacturer disclaims responsibility for any damage resulting from its use. It is the user’s responsibility to ensure compliance with relevant regulations and standards. This portable device must not be permanently installed; it should be disconnected after use and stored safely.