Opening the source isolation valve

To open the source isolation valve after completing a maintenance procedure:

Warning: To avoid personal contamination with biologically hazardous, toxic, and corrosive materials, wear chemical-resistant, powder-free gloves when performing this procedure.
 

Warning: To avoid puncture wounds, take great care while working with the source enclosure open if one or both of these conditions apply:

• An ESI probe is fitted (the probe’s tip is sharp).
• A corona pin is fitted (the pin’s tip is sharp).

1. Open the source isolation valve by moving its handle clockwise to the horizontal position.

2. Close the source enclosure.