DH Instruments E-DWT-H, Руководство по эксплуатации и обслуживанию

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E-DWT-H OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company Page 64
Security Levels
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.
Low Low security is designed to protect the 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 assure that the RPM4-E-DWT is
operated using consistent operational parameters.
High High security is designed to protect all operating parameters. It is
intended to minimize operator choices, for example to perform
repeated identical calibrations under consistent conditions.
Note
RPM4-E-DWT is delivered with the security level set at low to
avoid inadvertent altering of critical internal settings but with
access to changing security levels unrestricted. It is
recommended that the low security level be maintained at all
times. If there is a risk of unauthorized changing of the security
level, changing authority should be password protected (see

OPERATION of this section).
The security levels are structured to support typical levels of operation as shown
in Table 6. Specifically, the security levels prevent execution of the functions
accessed by the key strokes marked by “•”:
Table 6. Security levels
FUNCTION LOW MEDIUM HIGH
[RANGE] •
[ENT] (AutoTest)
•
[UNIT]
•
[MODE]
•
[AutoRange] • •
[LEAK CK]
•
[DISPLAY]
• •
[HEAD] •
[SDS] (NOT USED IN THIS RPM4-E-DWT MODEL)
[AutoZ] (in absolute mode)
• •
[SETUP]
•
[SETUP], <1range>
• •
[SETUP], <2res> • •
[SETUP], <4UL>
• •
[SETUP], <5ATest>
• •
[SPECIAL]
•
[SPECIAL], <1AutoZ> • •
[SPECIAL], <1AutoZ>, <1on/1off>
• • •
[SPECIAL], <1AutoZ>, <3edit>
• • •
[SPECIAL], <2remote> •
[SPECIAL], <2remote>, make changes • •