A&D Weighing AD-1690 - Manual (Page 19)

17
10. MAINTENANCE AND NOTES
(1) Removing the attachment
After measurement, remove the pipette and accessory by the following procedure.
When storing the main unit, allow of the Leak Tester to equalize to atmospheric
pressure.
1. Remove the pipette from the attachment.
2. Remove the attachment from the adapter.
At this time, if the attachment is still
connected to a pipette, the inside
pressure of the Leak Tester will not
return to atmospheric pressure.
(2) Storing
When storing the leak tester, avoid dust from
invading the main unit and connector tube
(adapter, attachment).
Close the cover of the AC adapter jack.
1) Adapter
Dust can not enter the main unit when
connected to the accessory adapter.
The connector has the airlock function.
Therefore, the Leak Tester is protected from
invading dust. But if the connector part of the
adapter becomes dirty, dust may invade at the
next measuring.
2) If the attachment is connected to the adapter,
dust may invade through the attachment. When
storing, remove the attachment.
Attachment
Pipette
Adapter
AC adapter
jack
Attachment