To Cancel Key Lock By Password - GRAPHTEC GL840 User Manual

(13) To cancel key lock by password

A password can be set to GL840 to cancel the key lock.
(No password is set at factory default.)
<Operation flow>
1. Set the password.
Press the , , and ENTER keys at the same time to display the password setting screen shown below.
Specify a 4 digit password.
Use the , ,
,
Specifying 0000 will disable password operation.
In case you forgot your password, please contact us to acquire the master password.
2. Set the password.
Hold down the
3. Cancel the key lock.
Hold down the
The password setting screen shown below will be displayed. Set a password.
Entering an incorrect password will not cancel key lock.
Key lock state will be retained when power is turned off.
keys to select numbers. Press the [ENTER] key to confirm the password.
and keys together for at least two seconds.
and keys together again for at least two seconds.
CHAPTER 3 Settings and Measurement
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