USER'S MANUAL - DATAQ Instruments
USER'S MANUAL - DATAQ Instruments
USER'S MANUAL - DATAQ Instruments
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CHAPTER 3 Settings and Measurement<br />
(13) To cancel key lock by password<br />
A password can be set to GL820 to cancel the key lock.<br />
(No password is set at factory default.)<br />
<br />
1. Set the password.<br />
Press the , , and ENTER keys at the same time to display<br />
the password setting screen shown below. Specify a 4 digit<br />
password.<br />
Use the , , , keys to select numbers. Press the ENTER<br />
key to confirm the password.<br />
Specifying 0000 will disable password operation.<br />
In case you forgot your password, please contact us to<br />
acquire the master password.<br />
2. Set the password.<br />
Hold down the and keys together for at least two seconds.<br />
3. Cancel the key lock.<br />
Hold down the and keys together again for at least two seconds.<br />
The password setting screen shown below will be displayed. Set a password.<br />
Entering an incorrect password will not cancel key lock.<br />
Key lock state will be retained when power is turned off.<br />
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