SHIMPO DT-601CG - Manual (Page 44)

14. MODE PROTECT FUNCTION
If turn on the mode protect function, up key and down key can not be inputed in setting mode, and can not
be changed setting value.
Mode protect function is OFF at shipping.
Operation of Mode protect function
(1) Display is selected to the measurement display.
* Mode protect function can not be called during the setting of Mode/Preset/Display offset.
(2) Press down key more than 2seconds.
(3) Current mode protect is displayed after 2 seconds.
Mode protect "ON" A B C D E F
L - O N
Mode protect "OFF" A B C D E F
L - O F F
(4) In addition, if press down key more than 8seconds, mode protect function is changed.
*"ON" changes into "OFF" and "OFF" changes into "ON".
(5) Stop press down key, and return to measurement display.
Caution
Mode protect function is invalid in setting of Preset value, Display offset value.
P45