Vérification des performances E
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E.4 Checking Performance
As part of an on-going process of measurement equipment quality control, users may need to perform their
own periodic performance checking tests.
These checks must comply with the usual precautions that apply when checking measurement equipment.
The following instructions must be complied with.
Handling is performed under reference conditions, i.e.:
Room temperature: 23°C 5°C.
Relative humidity: 45% to 75%.
The calibration equipment that makes up the checking system must be such that any errors at the check
points are known ones and do not exceed 0.01% for resistance calibration levels, after allowing for any
influencing factors encountered.
After the check has been performed, if one or more of the unit's characteristics are found to be
outside of the specified tolerances, it is possible to:
Adjust it in line with the procedure described in sub-section 5.7, which requires having equipment that
offers performance at least as good as that used for the check performed previously.
Return the unit to the address shown in sub-section 5.8 for checking and adjusting.
.
E.5 Managing Maintenance
In measurement mode, press the PROG key to call up the programming menu. The first function in this menu
(SET) is reserved for maintenance use.
This menu is password protected. The password used is a five digit one entered from the keyboard. As
delivered ex-factory, this number is set to 09456. Users have the option of changing it at their convenience.
After checking the password, a sub-menu offers the following maintenance functions :
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