google-site-verification: googlec20abed158f24f6c.html Why doesn’t Testwell have detachable probes?

Why doesn’t Testwell have detachable probes?

May 19, 2017

 

While detachable probe may at first appear a convenient way to add multiple functions to a unit, they will inevitably cause leaks. This is because any detachable probe requires o-rings or a compression fitting, both of which our competitors use for their  field detachable probes.

 

However, compression fittings are highly susceptible to even minute levels of contamination, i.e. airborne dust (basically very fine sand), while muddy water and other environmental contaminants are even more problematic.

 

 

 

While o-rings, may seem slightly more forgiving initially, repeated mate and unmate (or connect and disconnect cycles) under typical field conditions ( i.e. a non-clean room) will allow/cause dust to adhere to the o-ring. which must always have minimal lubrication which is essential for proper functioning.  Since an interference fit is required, that is the bore is always 70 thou (cross section  in a 50 thousandths of an inch deep groove for a total  difference of 20 thousands PER side which means the o-ring and now deposited and adhered sand is really PUSHING on the smooth (soon to be formerly smooth polished internal bore) which then scratches the o-ring mating surface, causing leaks.

 

 

Share on Facebook
Share on Twitter
Please reload

Featured Posts

Why doesn’t Testwell have detachable probes?

May 19, 2017

1/1
Please reload

Recent Posts

May 5, 2017

Please reload

Archive
Please reload

Search By Tags
Please reload

Follow Us
  • Facebook Basic Square
  • Twitter Basic Square
  • Google+ Basic Square

Copyright Testwell Instruments 2016

  • Facebook Clean
  • LinkedIn Clean
  • Google+ Clean
  • Facebook Clean
  • LinkedIn Clean
  • Google+ Clean


Call Us International: 905-873-8370     USA/Canada: 1-800-567-0004 
 

  • Instagram - Black Circle
  • YouTube - Black Circle
  • LinkedIn - Black Circle
  • Facebook - Black Circle


Dealer Discounts Available. Email Accounts@BuyTestwell.com for more information.