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9. Operation and menu structure
9.1 General
9.1.1
An optical button is located at each corner of the TFT display. The operability of
the respective buttons is signaled by blue backlighting; therefore non-backlit
buttons are disabled and cannot be operated. To operate the keys, the finger
must be placed on the key-dome and raised again. The orange background of the
button symbols is briefly displayed in blue as visual feedback for a detected key
press.
To avoid accidental operation in measuring mode, the operator must hold down
the menu button for 3-5 seconds to activate the function. If the menu button is
held down for more than 3 seconds, the blue backlighting will begin to flash to
alert the user to release the button.
The operation of the optical buttons can also be done with gloves or other
optically reflective objects, light dirt on the surface usually does not interfere with
the key function.
9.1.2
The function of each control key can be recognized by the respective symbol
displayed in the corners of the TFT display.
key symbol
A5E48762204-AB
Operation of the optical buttons
Function of the control buttons
designation
menu mode
info display
down
up
SITRANS FM100
Deactive optical button
Optical button active
function
Measuring mode
Activate menu
mode
hold 3-5 sec.
opens the info
menu
-
-
menu mode
-
-
Scroll down menu /
decrease numeric
value when entering
numeric value
Menu scroll up /
Increase the number
value for numeric
page 11
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