Disassembly, Decontamination and Assembly

425-D Deep Discrete Inteval Sampler Disassembly

  1. Unscrew the Sample Screen Plug and remove the Sample Screen from the Sample Release Port.
  2. Use a standard screwdriver to unscrew Sample Release Valve from the Piston Rod and remove from the Sample Release Port.
  3. Unscrew the Sample Release Port from the Bottom Platen and unscrew Bottom Platen from the Sampler Body.
  4. Unscrew the Sampler Body from the Pressure Chamber.
  5. Unscrew the Top Platen from the Top Retainer. Or, if weights have been used, unscrew the Top Platen from the weight and unscrew the weight(s) from the Top Retainer.
  6. Unscrew the Top Retainer from the Pressure Chamber.
  7. Use the Allen Key to loosen the screws in the Pressure Retainer and slide the Pressure Retainer off the Piston Rod.
  8. Holding the Piston Rod firmly, push the Piston out of the Pressure Chamber.

 

Decontamination

Notes:

  1. Always follow your local guidelines and standard protocols.
  2. Replace worn o-rings. Never use Acetone on the o-rings.

The Discrete Interval Sampler should be decontaminated after each sampling event.

  1. Disassemble the Sampler.
  2. Wash all Sampler parts in a phosphate-free soap.
  3. Rinse all parts thoroughly with deionized water and dry.
  4. Reassemble the Sampler.

 

Assembly

  1. Ensure there are two V-009 O-rings on the Piston Rod and two V-121 O-rings on the Piston Head.
  2. Slide the Piston Rod through the Pressure Chamber and with some force, pull the Piston Rod until you feel the two O-rings on the Piston seat inside the Chamber.
  3. Ensure there is a V-124 O-ring on the Pressure Chamber.
  4. Push the Piston Setting Tool into the Pressure Chamber and thread the Tool into the Pressure Chamber until it seats.
  5. Slide the Pressure Retainer firmly against the Pressure Chamber, to cover the V-009 O-ring at the vent hole. Use the Allen Key to tighten the Pressure Retainer in place.
  6. Remove the Piston Setting Tool.
  7. Put the Piston Rod through the Sampler Body and screw the Sampler Body onto the Pressure Chamber.
  8. Ensure there is a V-124 O-ring on the Top Retainer and thread it into the Pressure Chamber.
  9.  

    425-D Deep Sampling Discrete Interval Sampler (115342)

     

  10. Ensure there is a V-116 O-ring on the Top Platen and thread it into the Top Retainer (see Page 1 if using weights).
  11. Ensure there is a V-124 O-ring on the Bottom Platen and thread it into the Sampler Body.
  12. Ensure there is a V-116 O-ring on the Sample Release Port and thread it into the Bottom Platen.
  13. Ensure there is a V-009 O-ring on the Sample Release Valve and insert it through the Sample Release Port and thread it into the Piston Rod. Use a standard screwdriver to tighten it until just snug.
  14. Place the Sample Screen over the Sample Release Port and screw the Sample Screen Plug into the Sample Release Port.