===== 2D-S =====
  *Description: 2D-S (Stereo) Optical Array Probe. 
  *Dual 128-photodiode sensor head.
  *Manufacturer: Stratton Park Engineering Company, Inc. (SPECinc)
  *Model: 2D-128
  *Serial Number: 012 
  *UND Property Tag for Computer: 107154
  *UND Property Major Equipment Tag for Probe: 107153
  *SPEC 2D-S Hermetically-Sealed Probe Canister (SN016), Connector on Canister, male M85049/52-1-16W 9205.
  *IP Address: 192.168.1.133  

===== 2D-S General Description =====

    *Two 128-photodiode linear arrays work independently as high-speed and high-resolution optical imaging probes.
    *Captures two-dimensional images of particles passing through sample volume where laser beams overlap.
    *The region where the beams overlap uniquely defines the depth-of-field (and thus the sample volume) for small particles.
    *Response time is 10 times faster than the 2D-C.
    *Particles as small as 10 microns imaged at 200 m/s.
    *Greatly improved determination of sample volume and sizing of small particles less than 100 microns.
    *Data rates up to 13 MB per second, compressed into binary file.
    *Fits in standard PMS 2D canister and uses standard wiring.

===== Dimensions =====
Probe (w/o can): 19 lbs; 35” x 7” x 7” (8.6 kg; 89 cm x 18 cm x 18 cm)


===== Status =====
  *Received Probe only -- November 7th, 2013 
  *Received computer   -- December 17th, 2013
  *Successful ground test -- December 19th, 2013
  *Successful ground test with probe installed on aircraft -- January 22, 2014
  *Successful test flight -- March 6, 2014

===== Nitrogen Can Flush =====
^Date^Person^
|July 13, 2015|Nicholas Gapp|
|July 10, 2015|Jamie Ekness|
|July 7, 2015|Nicholas Gapp|

===== Nitrogen Purging =====
[[http://atmoswiki.aero.und.edu/atmos/citation/instruments/hvps/home#nitrogen_purging|Instructions here]]
(Instructions are the same for the 2-DS and HVPS)

===== Problems and Solutions =====
  *[[atmos:citation:instruments:2ds:2ds_problems_solutions|2DS Problems and Solutions]]

===== Cleaning Optics and In-can Desiccant =====
  *[[atmos:citation:instruments:2ds:2ds_cleaning|2DS Cleaning and Desiccant]]