Fluke PG9000 Series, Operation And Maintenance Manual

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PG9602™ OPERATION AND MAINTENANCE MANUAL
© 2011 Fluke Calibration Page
104
3.12.4.5 <4prefs>, <5level>

PURPOSE
This is the user access level restrictions. Allow the operator to set user
protection levels that restrict access to certain functions, and to create or edit the
password required for changing User Levels.

PRINCIPLE
The PG Terminal provides access to all PG9000 user defined data, settings and
functions which include the metrological calibration data. Inadvertent, uninformed or
unauthorized altering or deleting of data, settings and functions could require
extensive reconfiguration by the user and might cause invalid readings. For these
reasons, depending upon the application in which PG9000 is being used, it may be
desirable to restrict access to certain functions. The USER LEVEL function provides
a means of restricting access to certain functions. Four different levels of security are
available: none, low, medium and high.
Access to changing security levels can be left open, or be protected by a
password so that security levels can be used as a convenient way to avoid
accidental changing of data or as a secured means of preventing tampering with
PG9000 settings. At a minimum it is recommended to operate at a “Low” access
restriction as this will prevent inadvertent edits to the key metrological data.
The security levels are structured to support typical operating environments as
follows:
None This level is intended for use only by the system manager and/or calibration
facility. It allows access and editing in all areas including critical metrological
information and other settings that affect measurement integrity.
Low Low security is designed to protect the core specific metrological information and
system diagnostic and maintenance functions of the system against accidental
alteration. It is intended for an advanced operator performing many different
tasks. Low security is the default User Level setting.
Medium Medium security is designed to protect specific metrological information in the system
and to ensure that PG9000 is operated using consistent operational parameters.
High High security protects all operating parameters. It is intended to minimize
operator choices (e.g., to perform repeated identical tests under consistent conditions).

Caution
•
PG9000 is delivered with the security level set to low to
avoid inadvertent altering of critical internal settings but
with unrestricted access to changing security level setting.
It is recommended that the low security level be maintained
at all times and password protection be implemented if
control over setting of security levels is desired.
•
If there is a risk of unauthorized changing of the security
level, changing authority should be password protected
(see OPERATION of this section).
•
The High security level disables remote communications
and returns an error message (“ERROR”) to all remote
commands. All other security levels have NO effect on
remote communications.
The security levels are structured to support typical levels of operation.
Specifically, the security levels prevent execution of the functions in Table 17
marked by “
•
”: