Endress+Hauser Ceraphant PTP31B - Locking and Unlocking Operation

Operation options Ceraphant PTP31B, PTP33B
24 Endress+Hauser
7.6 Locking and unlocking operation
The device features
• Automatic key locking
• Parameter settings lock.
Key locking is indicated on the local display by "E > 2".
Locking of the parameter settings is indicated as soon as an attempt is made to change a
parameter.
7.6.1 Disabling the key lock
The keys are locked automatically if the device remains at the topmost menu level (display
of pressure measurement value) for 60 seconds.
Call up the key lock function (KYL)
1. Press the  key for at least 2 seconds and then release it
2. By confirming with  "ON" is displayed
3. Use  and  to toggle between "ON" and "OFF"
4. Key locking is disabled as soon as  is pressed to confirm "OFF"
The display changes to the main value level (topmost menu level) if the  key is pressed
briefly. The display changes to the key locking if the  key is pressed for at least 2
seconds.
If in the case of "KYL", "ON" or "OFF", more than 10 seconds elapse without a key being
pressed, you return to the topmost menu level with active key locking.
The function can be accessed anytime outside the main measured value display and within
the operating menu, i.e. if the  key is pressed for at least 2 seconds key locking can be
performed anytime at any menu item. Locking is effective immediately. If you quit the
context menu, you will return to the same point from which key locking was selected.
7.6.2 Locking parameter settings
COD locking code
Navigation EF → ADM → COD
Description A code can be entered to protect parameter settings against unauthorized and unwanted
access.
Selection
To lock: Enter a number ¹ the LCK release code (value range: 1 to 9999).
Factory setting 0000
7.6.3 Unlocking parameter settings
If parameters are locked, the word "LCK" appears on the local display as soon as an attempt
is made to change a parameter.
LCK unlocking code