WATERS CORPORATION TQ, Руководство оператора, Страница: 60 / 192

4 Maintenance Procedures
60 December 6, 2012, 71500126802IVD Rev. C
Operating the source isolation valve
You must close the source isolation valve to isolate the source from the
instrument vacuum system for certain maintenance procedures.
Required material:
Chemical-resistant, powder-free gloves
To close the source isolation valve before starting a maintenance procedure
1. Prepare the instrument for working on the source (see page 59 ).
2. Open the instrument’s access door.
3. Open the source enclosure door by releasing both spring-clips and
lowering the door towards you.
Warning:
The source components can be contaminated with
biohazardous and/or toxic materials. Always wear
chemical-resistant, powder-free gloves while performing this
procedure.
Warning:
To avoid electric shock, ensure that the instrument is
suitably prepared before commencing this procedure.
Warning:
The source can be hot. To avoid burn injuries, take
great care while working with the instrument’s access door open.
Warning:
To avoid puncture wounds, take great care while
working with the source enclosure door open if an ESI probe is
fitted (the probe tip is sharp).
Caution:
Do not apply any downward force to the source
enclosure door while the door is open.