operAting the Device
DMM14 MANUAL
122
8.11.1 Locking the SYSTEM CONTROL rotary knob
To lock the
SYSTEM CONTROL
rotary knob, proceed as follows:
Step Description
1
Press the
SYSTEM CONTROL
rotary knob for longer than
3 seconds
• The
LOCKED
LED is lit.
• Turning the rotary knob has no function.
• All other rotary knobs are in
LEVEL
mode and can still be
operated.
8.11.2 Unlocking the SYSTEM CONTROL rotary knob
To unlock the
SYSTEM CONTROL
rotary knob, proceed as follows:
Step Description
1
Press the
SYSTEM CONTROL
rotary knob for longer than
3 seconds
• The rotary knob lock is removed.
• The
LOCKED
LED is no longer lit.
• The rotary knob is in the basic
LEVEL
position.
8.11.3 Locking the complete unit
To lock the complete unit, proceed as follows:
Step Description
1
Press the
SYSTEM CONTROL
rotary knob at the same time
as the
OUT
rotary knob for longer than 3 seconds
• The
LOCKED
LED is lit.
• The original settings are stored.
• Turning the rotary knob has no function.
• All other rotary knobs are in
LEVEL
mode and can still be
operated.
Lock rotary knob
Unlock rotary
knob
Lock unit
Summary of Contents for DMM14 U
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