Introduction: How to Use Long AND Short Tips on Your Gilson Pipetman P2 and P10 (also P2N and P10N)

 The newer versions of the Gilson Pipetman P2 and P10 Both Pipetman P and Neo (NOTE: Neos have been given the suffix-letter "N" to indicate the model difference as well as lighter plunger force, overall lighter weight, a wider volume range in some models, and a color ring on the outside of the plunger) have a feature you may not be aware of, OR you may think your Pipetman can't properly eject or accept certain sized tips.  

Well this instructable may clear up any confusion!  You see, Gilson has redesigned the P2 and P10 with a "Dual position Adapter" on these two models which allows you to use long and short tips!  

Read on weary lab bench warrior!

Step 1: The Gilson P2 and P10 (or P2N and P10N)

 Both P2 and P10 models are very similar in terms of outward appearance. Look at the handles, no difference.  Pipetman Neo's are given the suffix letter "N" to their original Pipetman model names.  The very end of the (shaft) tip ejector is slightly different, however.  P2 is more pointed than the P10. 

Step 2: The LONG Position

 In these pictures both models are in the "long tip" position.  They can handle DL10 tips and eject them properly using the tip ejector button.  Notice the metal ejector "arm" is shorter on these new models? (see both pics)

Step 3: The Tip Ejector "switcharoo" Step One.

 It's easy to set the adapter for either size.

Step one: Grap the adapter.  

Step 4: Step Two: Pull Adapter

 Pull the adapter away from the metallic rod.

Step 5: Step Three: Pull Off Adapter (optional)

 You don't really have to do this, I just happen to take a picture of it off of the Pipetman.

Step 6: Step Four: Turn the Adapter 180�

 Turn the adapter 180 degrees to show the OTHER slot on the adapter.  In this case, the SHORT slot.

Step 7: Step Five: Replace Adapter

 Put the desired slot carefully onto the metallic rod so the rod slides into the slot.

Step 8: Step Six: Push Adapter to Set.

 Push the adapter onto the rod until it "fits".  You will feel the little bump on the rod engage into the dip on the adapter.

Step 9: Step Seven: Marvel at the Greatness You Have Achieved!

 Now you will be able to not only fit both long and short tips...you will be able to EJECT THEM AS WELL!!!

Step 10: Fit the Proper Tips for Your Needs!

 You are now ready to aspirate and dispense effectively utilizing the right tips for the job!  (and be able to eject them!)

Comments

author
isacco made it! (author)2009-12-16

congratulations for this clear Instructable addressed the people working in a scientific lab.
I have experience with Gilson, Eppendorf, and Finpipette (Thermo). My Gilson tools are quite old. They are very robust and accept all the tips, but with time the metal tip ejector rusts and tends to fall down. Gilson calibration can be done only by the Gilson assistance. I prefer Eppendorf for use comfort, light force and precision, but they not for left-hand users. Eppendor pipettes can be re-calibrated in the lab. On the cons, Eppendorf pipettes are very stringent for tip brand.

author
xrobevansx made it! (author)xrobevansx2009-12-16

 Isacco, Gilson can be calibrated easily in the lab.  In fact, they are known to be the easiest pipette to service! The reason the Gilsons take "universal" tips is: they set the standard!   Many other pipettes seem to be "clones" of the Gilson Pipetman which has been in labs for some 35 years.  As you said, your Gilson are quite old...you never see 10, 20, 30 year old other makes.  Thank you for the kind words. 

author
isacco made it! (author)isacco2009-12-16

Hi xrobevansx,
To my knowledge calibration of Gilson pipettes is not routinely carried out in the lab, but I am glad to know that I am wrong. The Epperdorf Standard Operating Procedure (SOP) clearly explains how to calibrate and a specific plastic tools is provided to adjust the piston screw. On the contrary, the SOP of my Gilsons explains how to test the volume precision but does not consider calibration. However, it may be due to the age of my Gilson tools. Honestly I have never used a recent Gilson.
If you know a easy way to calibrate a P series Gilson of any age, please explain me or create a new Instructable. It would be welcome
isacco

author
lemonie made it! (author)2009-12-15

Super. I liked the Gilsons over other air-displacement pipettes I've used.

L

author
ChrysN made it! (author)ChrysN2009-12-15

Yes, and they last too.  Our lab bought some other brand and it broke after a year. 

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