Agilent Technologies Truevolt Series - Security Code Override

Security Code Override
The instrument security code is set to AT3446XA at the factory. If it has been changed and you no longer remember
the code, you can reset the code back to its factory default value by following the procedure below.
This procedure should be performed by qualified service personnel only. Turn off the
power and remove all measurement leads and other cables, including the power cord,
from the instrument before continuing.
Agilent Truevolt Series DMM Operating and Service Guide 325