ALPHA digital lock X, interlock release Lithium battery replacement lid

"I replaced the battery, but it doesn't work, so I tried to remove it again, but the lid cannot be removed."

The target is ALPHA Digital Lock X. It is the predecessor of ed-Lock, but it is a fairly old product.

A feature of ALPHA's electronic lock is that the lid for battery replacement cannot be removed with an interlock when the battery runs out.In order to remove it, it is described in the manual that something called a maintenance card is required.

Since the content was declared in advance by the client, I was able to check it by the time it arrived.

The method of release can be predicted from the shape of the maintenance card, but the structure is unknown because it is the first one.

If you can operate the interlock parts, you shouldn't need a maintenance card.

Alternatively, it may be made with similar materials while measuring in the field.

However, when I was in the position of designing and thinking about how to make it work, a method came to me.

It's a small electromagnetic solenoid.It is also used as an interlock for Sentry safes.

Therefore, using a magnet may help.Or, to make it easier to work, you can remove it by removing the main body, looking through the scope, and operating it with a pick.

First of all, it was a magnet, but by using this, I managed to release it and remove the battery replacement lid.

After that, I checked the structure, but I found out the reason why the shape of the maintenance card is a strange protrusion.

This method seems to be applicable to ed-Lock, which does not have an emergency power supply terminal.

Good information was obtained this time.