Xylem ProLab 4000 MULTIPARAMETER BENCHTOP METER - Manual (Page 19)

ProLab 4000 Overview
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1.6 Electronic access control
The ProLab 4000 always documents measurement and calibration
data together with a user name.
Thus all measurement data is assigned to the user, in compliance with
GLP.
The user name is easily and safely transmitted to the ProLab 4000 via
an electronic key. Each electronic key in the form of a keyring pendant
contains a key number and a user name. The key number and user
name are read by the meter via a contactless radio data connection.
The meter checks the access authorization for the user name. Mea-
surements with an electronic key are only possible if the key number
and user name is registered in the meter. The measuring data is then
documented along with the registered user name.
If the user name of an electronic key is not registered in the meter,
access to the meter with this electronic key is denied.
If access to the meter is anonymous (no password, no electronic key
required), all data are documented with the user name, Anonymous.
By labeling the measurement data with Anonymous, this data can be
excluded from the GLP-compliant documentation.
Reader field for
the electronic
key