Is is possible to lock the display on the Conzerv EM6400 series meter?

Issue
How does one lock the EM6400?

Product Line
Conzerv EM6400

Resolution
Enable screen lock on EM6400
Press the left and right arrows simultaneously in any of the Main/Sub pages to set that page as the default lock page. After two minutes of inactivity, the meter will default back to the lock page.

Note: Locking the page will prevent entry into setup (both through the Edit menu as well in Power ON setup mode).

To disable the screen lock feature, press the left and right arrows simultaneously when on any of the Main/Sub pages.