Endress+Hauser Cerabar S Series - Maximum Pointer Function; Locking;Unlocking

5.4 Maximum pointer function
Maximum pointer
function
The maximum pointer function displays the maximum and minimum pressure and
temperature measured since the last pointer reset.
The units for pressure and temperature are selected with the parameter "Select Pressure
Unit" and "Select Temperature Unit" respectively. Please note that any change in the
pressure units affects all pressure entries.
5.5 Locking/unlocking
After all parameters have been entered, the manufacturer's specific parameters can be
locked.
•
via the keys +Z, –Z, +S and –S or
•
via the parameter "Security Looking" by entering a three digit code ≠ 130.
(130 is the code for unlocking the parameters)
This protects the measuring point from accidental and unauthorised entries.
Keys
# Key Entry
1 Lock operation:
Press +Z and –S simultaneously once
2 Unlock operation:
Press –Z and +S simultaneously once
Parameter
# Parameter Entry Significance
1 Security
Looking
e.g. 131 Parameters
locked
2 Security
Looking
130 Parameters
unlocked
The table below summarises the locking function.
–
–
+
Z
S
+
–
–
+
+
Z
S
Parameter Signifiance
Min. Pressure
Minimum pressure, Reset via the option "reset" to the acting pressure value
using the parameter "Reset Min Pres Peak Hold"
Max. Pressure
Maximum pressure, Reset via the option "reset" to the acting pressure value
using the parameter "Reset Max Pres Peak Hold"
Min. Temperature
Minimum temperature, Reset via the option "reset" to the acting
temperature using the parameter "Reset min Peak Hold"
Max.Temperature
Maximum temperature, Reset via the option "reset" to the acting
temperature using the parameter "Reset max Peak Hold"
–
–
+
Z
S
–
–
+
Z
S
+
+
BA211Y42
Locking
Unlocking
Locking with keys has priority
Locking via Display/
reading of
parameters
Changing/writing via Unlocking via
keys communication keys communication
Keys
yes no no yes no
Parameter
yes no no yes yes
5 Pressure Measurement Cerabar S FF
36 Endress+Hauser