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4.1. General Operating Procedures
4.1.1. Key Lock setting
Press the LOCK key. If the Password is Enabled, the display will show:
Password = _ _ _ _
Range : 0 - 9 9 9 9
To view the password or enter a new one refer to the calibration procedure. Use the
Numeric Key to enter the password and then press the ENTER key. The program will
switch the Key Lock function from LOCK to UNLOCK or UNLOCK to LOCK mode
and advance the program to Operation mode automatically. If the instrument is in the
Lock mode, the LOCK indicator on the front panel will light. If the wrong password is
entered, the program will give a warning sound and the display will show:
Password = ERROR
Range : 0 - 9 9 9 9
And then the program will return to the original screen and wait to enter the new
password. If the Password is Disabled (Password is set “0”), the display will show:
Key Lock = O N
ENTER to Select
Key Lock = O F F
ENTER to Select
Use the ENTER key to select the Key Lock mode, then press the EXIT key. The
program will switch the Key Lock function from LOCK to UNLOCK or UNLOCK to
LOCK mode and advance the program to the Operation mode automatically. If the Key
Lock function is in the Lock mode, the LOCK indicator on the front panel will light.
If the Memory Lock function (MR-Lock) is selected to ON, the Memory selection Menu
will be disabled when in the Lock Mode. If the MR-Lock is selected to OFF, the Memory
selection Menu will be enabled when in the Lock Mode. Different memories can be
recalled but the test parameters or steps cannot be changed. The MR-Lock default is
preset to ON at the factory.
Please refer to the calibration procedure, on page 89, to set the MR-Lock mode .
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