Technical data

84 34405A User’s and Service Guide
4 Performance Tests and Calibration
Example 3
Assume the calibration security code has been set to ATB1 through remote
interface. The first two characters (AT) are ignored. The B is represented
by a zero. The “1” is still used and trailing zeros fill in the remaining
characters. Use this code to unsecure:
01000
To Un se cu re the Inst ru me nt from the Front Panel
1 Press and simultaneously to enter the Calibration
Security Code entry mode.
2 The primary display shows SECur and the secondary display shows _ _
_ _ .
3 Use the editing keys to step to each character
in the code.
Use the range keys to select each character.
4 Press (Enter) when done.
5 If the correct security code was entered, the CAL annunciator
illuminates and the primary display briefly shows PASS.
Shift
DCV
Store
Recall
Store
Recall
Limit
Edit
Range
Disp
Enter