Lock (P069); Failsafe (P070 To P073) - Siemens SITRANS Probe LU Operating Instructions Manual

Lock (P069)

P069 Unlocked value
Stores the value to enter in Lock (P000) to unlock programming. If P000 is locked, P069
will not display the Unlocked value.
Values
Notes:
• Default setting for P000 is unlocked.
• After a new value has been stored at P069, that value will be recalled after a master
reset (P999).
• Consult your Siemens representative, if you have forgotten the unlocked value.

Failsafe (P070 to P073)

P070 Failsafe Timer
Sets the time to elapse in minutes since the last valid reading, before Failsafe State
activates.
Values
The last valid reading is maintained until the Failsafe timer expires. After the
Note:
timer expires, the reading is set based on P071.
P071 Failsafe Material Level
Allows you to select the material level to be reported when the Failsafe Timer expires.
(For more detail, see Failsafe on page 91.)
Values
1. Enter the value corresponding to the level you want reported when the Failsafe
Timer expires.
2. Press ENTER
Page 42 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS
Range
Default
----
Range
Default
1 Use Maximum mA Limit (P213) as material level
2 Use Minimum mA Limit (P212) as material level
3 * Level remains at last reading
4 User-selected value (defined in P073)
.
1 to 9999
1954
Display when P000 is locked
0.0000 to720.00 min.
100.00 (based on P003)
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