49
Signature
Function description
Signature
A signature consists of two entries, the user name and the corresponding pass-
code. Each change at the device (calibration/adjustment, parameter setting,
maintenance, if required also diagnostics) is recorded in the “AuditTrail Log” and
the respective records together with the name of the user who has performed
the change. For that purpose, access authorizations are introduced.
Access authorization
Every access authorization consists of a signature:
• User name and
• Passcode.
The administrator and the user enter the access data in the user management
menu. The administrator enters the user name (short name) and the user adds
his/her personal passcode.
Each time he/she calls a protected menu, the user must enter his/her name and
passcode. The analyzer only gives access to the function if the access codes are
valid. The recordings (AuditTrail log, records) on the AuditTrail card include the
user names so that all actions can clearly be traced back.
Encrypted storage
The entries in the audit trail log can be encrypted using an algorithm and
protected with checksums so that a special evaluation program can prove the
authenticity of the data records on a PC.
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