Environmental Express SPE-Express with Cover - Manual (Page 39)

Environmental
Express,
Inc.
800.343.5319/843.881.6560 38
5.0 Care and Maintenance
5.1 Removing and Cleaning Lower Glass Chamber
Removing and cleaning the glass chamber in the SPE-Express should be part of your routine maintenance in
maintaining a clean instrument. The frequency of the cleaning will be dependent on the number and types of
samples analyzed and should be determined by each individual end-user.
• Unscrew the hexane line coming out of the side-arm of the chamber by unscrewing the black nut.
An o-ring is located in this ring so be careful not to lose it. This line will be the front line from the
side of the chamber.
• Unscrew the Nitrogen line coming out of the side-arm of the chamber by unscrewing the black
nut. An o-ring is located in this ring so be careful not to lose it. This line will be the back line from
the side of the chamber.
• Loosen the black nut at the bottom of the chamber above the sample release solenoid. This ring
will unscrew by twisting it clockwise when viewed from above.
• Using a 5/32" Allen wrench, unscrew the 2 screws in the clamp behind the glass chamber. Remove
the clamp and screws together once the screws are completely loosened.
• Pull the glass chamber out.
• Clean with DI Water to remove debris.
• Rinse with acetone to remove all traces of water.
• Rinse with hexane to clean the reservoir and allow it to completely dry.
5.2 Removing and Cleaning Barb Fittings
• Remove the barb fittings from the top and bottom of the solenoid using a 7/16" wrench.
The tube will stay on the top fitting during cleaning.
• Clean the DI water to remove debris. Do NOT clean with acetone.
• Rinse with hexane to clean and remove excess water.
• Allow fittings to dry completely.
5.3 Cleaning the Sample Release Port
The Sample Release Port should be cleaned any time the glass chamber is cleaned. Follow the instructions below:
• Place an empty pan below the Sample Release Port.
• In the manual screen in the SPE-Express software, click on the “Sample Release Solenoid” button.
CAUTION: if the solenoid remains on for an extended period of time it will become hot.
• This will open the valve so the port can be cleaned.
• Using a squirt bottle, squirt DI Water through the top of the sample release valve to remove any
debris that may be present.
• Squirt acetone through the top of the sample release valve to remove any DI Water.
• Blow clean filtered air or Nitrogen through open valve to dry completely. (Do NOT use any
unfiltered air for this as particulates can cause damage to the valve).
• Click the “Sample Release Solenoid” in the manual screen in the SPE-Express software to close the
valve.