Xylem ProLab 1000 BENCH TOP pH METER - Manual (Page 13)

ProLab 1000 Overview
13 ba75576e04 01/2011
1.6 Electronic access control
The ProLab 1000 always documents measurement data and
calibration data with an ID number (USER ID).
If the USER ID is assigned to a certain user, all measurement data is
also assigned to the user in compliance with GLP.
The USER ID is easily and safely transmitted to the ProLab 1000 via
an electronic key. Each electronic key in the form of a keyring pendant
contains a key number. The key number is read by the meter via a
contactless radio data connection and used as the USER ID.
The meter checks the access authorization for the USER ID.
Measurements with an electronic key are only possible if the USER ID
is registered in the meter.
The measuring data is then documented along with the registered
USER ID.
If the USER ID of the electronic key is not registered in the meter,
access to the meter with this electronic key is denied.
Anonymous access is always possible. For anonymous access, the
USER ID 0 is used automatically.
By labeling measurement data without electronic key with USER ID 0,
this data can be separated from the GLP-compliant documentation of
measurements.
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Reader unit for
access control