Endress+Hauser Levelflex M FMP45 - Page 53

Levelflex M FMP40 and FMP45 7 Description of Instrument Functions
Endress+Hauser 53
7.7.5 Function "unlock parameter"
Set-up can be locked and unlocked with this function. Levelflex M for interface measurements is
delivered in locked status (access code = 99). The access code has to be entered before the device
commissioning. It is advised to lock the device again after installation and commissioning.
7.7.6 Locking of the configuration mode
The Levelflex can be protected in two ways against unauthorised changing of instrument data,
numerical values or factory settings:
"unlock parameter":
A value
<> 100 for HART (e.g. 99) must be entered in "unlock parameter" in the "diagnostics"
function group. The lock is shown on the display by the symbol and can be released again either
via the display or by communication.
7.7.7 Unlocking of configuration mode
If an attempt is made to change parameters when the instrument is locked, the user is automatically
requested to unlock the instrument:
"unlock parameter":
By entering the unlock parameter (on the display or via communication)
100 = for HART devices
the Levelflex is released for operation.
"
Caution!
Changing certain parameters such as all sensor characteristics, for example, influences numerous
functions of the entire measuring system, particularly measuring accuracy. There is no need to
change these parameters under normal circumstances and consequently, they are protected by a
special code known only to the E+H service organization. Please contact Endress+Hauser if you
have any questions.
7.7.8 Function "measured dist."
Display of measured distance in the selected "distance unit".
7.7.9 Function "measured level"
Display of measured level in the selected "distance unit".
7.7.10 Function "application par."
If, for example, the "output damping" is changed, the "application par."shows"modified".
Selection:
•not modified
• modified