Sun Microsystems DGA 5000, Руководство оператора

Страница: 61 / 84

The “Maintenance” section of this manual is divided into three main sub-
sections:
- Operator initiated system checks.
- Routine maintenance procedures.
- Error codes and warnings.
9.1 System Checks
The operator may initiate the following system checks:
- Leak Check (Vacuum) .
- Leak Check (Gas) .
- Gas Calibration Check
- Check and/or Install the O2 Cell .
All the above checks are initiated via the Gas Analyser Maintenance
Menu (see 5.3 ).
9.2 Leak Check (Vacuum)
Note:
A daily check of the gas analyser pneumatic circuit for air leaks that
could compromise the accuracy of the test results is a mandatory
requirement of many country specific test procedures (see
6.3: „Daily
Leak Check‟
). If the DGA 5000 is configured for an approval type that
requires such a daily leak check, the appropriate settings will be made at
the time of the installation of the test software. In this case the unit will
not commence normal operation unless a satisfactory leak check has
been carried out. In order to ensure the continued accuracy of the test
results, it is recommended that a daily leak check be carried out at the
start of the day‟s operation even in cases where such a test is not a
statutory requirement. To conduct a Leak Check (Vacuum):
• Select the “Leak Check (Vacuum)” option from the
Gas Analyser
Maintenance Menu (see 5.3 )
52
9
Maintenance