Frequently Asked Questions about the Tachometer

If you press the "COND/>" button on the front panel for more than 2 seconds, it will switch to key lock mode. While in key lock mode, no button operations will be accepted. If you attempt to operate the keys while in key lock mode, a message "[K.P.] (KeyProtect)" will be displayed at the bottom center of the display.

To unlock the key lock state, press and hold the "COND/>" button for more than 2 seconds.