Keysight U3606A, User'S And Service Manual

Page: 205 / 293

Calibration Procedures 6
Calibration Security
U3606A User’s and Service Guide 183
Unsecuring from the front panel
Only four characters (the fourth through
seventh characters) of the security code are used to unsecure the
instrument from the front panel. If there are letters instead of digits in
any of the fourth through seventh characters, those letters will be
represented by the numeral “0” from the front panel.
Example 1
Assume that the calibration security code is the factory default
setting of “ATU3606A”. When unsecuring from the front panel, the code
length is four characters and the first three characters (ATU) are ignored.
In our example, the code now becomes: 3606
Example 2
Assume that the calibration security code was set to
“AT01A234” from the remote interface. When unsecuring from the front
panel, the first three characters and any characters after (the seventh
through twelfth characters) are ignored. In our example, the code now
becomes:
1A23
From the front panel, any letters (“A” in this example) are represented by
the numeral “0”. Use this code to unsecure:
1023
Example 3
Assume that the calibration security code has been set to
“AB123CD45” from the remote interface. The first three characters (AB1)
are ignored. The numerals “2” and “3” are still used, and the letters “C”
and “D” are represented by zeros.
Use this code to unsecure: 2300
To unsecure the instrument from the front panel
1
Press
Shift
+ together during normal operation.
2
The instrument will enter the calibration security code edit mode.
“SECur” is displayed in the upper secondary display while the security
code is displayed in the primary display.
3
Press or to move the cursor to the right or to the left.
+
V