Performance Tests and Calibration
7
Agilent U1251A/U1252A User’s and Service Guide
139
Unsecuring the Instrument for Calibration
Before you can adjust the instrument, you must unsecure it
by entering the correct security code. The security code is
set to 1234 when the instrument is shipped from the fac-
tory. The security code is stored in non- volatile memory,
and does not change when power has been off.
To Unsecure the Instrument from the Front Panel
1
Turn the rotary switch to
.
2
Press
and
button simultaneously to enter
the Calibration Security Code entry mode.
3
The primary display shows 5555 and the secondary
display show SECUr.
4
Use the editing keys
and
to step each
character in the code.
Use the
and
to select each character.
5
Press
(Save) when done.
6
If the correct security code is entered, the secondary
display will show PASS.
Summary of Contents for U1251A
Page 34: ...34 Agilent U1251A U1252A User s and Service Guide 1 Getting Started Tutorial...
Page 116: ...116 Agilent U1251A U1252A User s and Service Guide 5 Maintenance...
Page 120: ...120 Agilent U1251A U1252A User s and Service Guide 6 Accessories...
Page 156: ...156 Agilent U1251A U1252A User s and Service Guide 8 Specifications...
