Endress+Hauser Micropilot FMR50, Operating Instructions Manual

Page: 52 / 184

Operation options Micropilot FMR51, FMR52 HART
52 Hauser
8.2.3 Write protection via access code
Using the device-specific access code, the parameters for the measuring device
configuration are write-protected and their values can no longer be changed via local
operation.
Define access code via local display
1. Navigate to: Setup → Advanced setup → Administration → Define access code
→ Define access code
2. Define a max. 4-digit numeric code as an access code.
3. Repeat the same code in
Confirm access code parameter.
 The -symbol appears in front of all write-protected parameters.
Define access code via operating tool (e.g. FieldCare)
1. Navigate to: Setup → Advanced setup → Administration → Define access code
2. Define a max. 4-digit numeric code as an access code.
 Write protection is active.
Parameters that can always be changed
The write protection does not include certain parameters that do not affect the
measurement. Despite the defined access code, they can always be modified, even if the
other parameters are locked.
If no key is pressed for 10 minutes in the navigation and editing mode, the device
automatically locks the write-protected parameters. If the user goes from the navigation
and editing mode back to the measured value display mode, the device automatically locks
the write-protected parameters after 60 s.
• If write access is activated via access code, it can be also be deactivated only via the
access code →  53.
• In the "Description of Device Parameters" documents, each write-protected
parameter is identified with the -symbol.