
Transmitter M300 15
© 12 / 11 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter Multiparameter M300
Printed in Switzerland 52 121 389
3.3.5 NavigationwithuinDisplay
If a u is displayed on the bottom right hand corner of the display, you can use the c or the
b key to navigate to it. If you click [ENTER] you will navigate backwards through the menu
(go back one screen). This can be a very useful option to move back up the menu tree without
having to exit into the measuring mode and re-enter the menu.
3.3.6 ”Savechanges”dialog
Three options are possible for the ”Save changes” dialog: Yes & Exit (Save changes and exit to
measuring mode), ”Yes & u” (Save changes and go back one screen) and ”No & Exit” (Don’t
save changes and exit to measuring mode). The ”Yes & u” option is very useful if you want to
continue configuring without having to re-enter the menu.
3.3.7 SecurityPasswords
The M300 transmitter allows a security lock-out of various menus. If the security lock-out
feature of the transmitter has been enabled, a security password must be entered to allow ac-
cess to the menu. See section 9.3 for more information.
3.4 Display
h
NOTE: In the event of an alarm or other error condition the M300 Transmitter will display a flash-
ing a in the upper right corner of the display. This symbol will remain until the condition that
caused it has been cleared.
h
NOTE: During calibrations, clean, Digital In with Analog Output/Relay/USB in Hold state,
a flashing H will appear in the upper left corner of the display. This symbol will remain for
20 seconds until after the calibration or clean is completed. This symbol will also disappear
when Digital In is deactivated.
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