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====== Cloud Droplet Probe (CDP) ======
  *Description: Cloud Droplet Probe
  *Manufacturer: Droplet Measurement Technologies
  *Model: CDP2
  *Serial Number: 0901-48
  *Weight (UND has short version): 3.5 lb
    * (Newer long version): 3.0 lb
  *Size (UND has short version): 8.5" (long), 6.0" (wide), 4.5" (height)
    * Long (larger version) 10.5" (long), 6.0" (wide), 8.5" (height)
  *UND Major Equipment Property Tag Number: 105883
  *[[atmos:citation:instruments:cdp:cdp_instrument_log|CDP Instrument Log]]

===== Cloud Droplet Probe Pelican Box Contents =====
As of 5/16/2021:
  * Cloud Droplet Probe (SN: 0901-48)
  * Electronics Box (SN: 0901-048)
  * Control Board (ABD-0234)
  * CDP Probe to Electronics Box Cable (New)
  * CDP Probe to Electronics Box Cable (Old)
  * CDP Control Box Mounting Plate Hardware 
  * Electronics Box to Data Acquisition Cable 
  * RS422- M300 Converter Cable
  * Adapter Plate with Screws
  * Test Cable with Gender Changer
  * P4 Cable End and Cap (Within a bag)
  * Screws and Miscellaneous Equipment (Within a bag)

===== DMT Calibration Files =====
  * {{:atmos:citation:instruments:cdp:cloudDropletProbe_Calibration_090301.pdf|March 1, 2009}}
  * {{:atmos:citation:instruments:cdp:clouddropletprobe_calibration_091216.pdf|December 16, 2009}}
    * Firmware: 169D installed
  * {{:atmos:citation:instruments:cdp:clouddropletprobe_calibration_110214.pdf|February 14, 2011}}
    * Sealed Windows,tuned laser heater to 25 C, installed PBP-Dynamic Threshold Firmware - Corrected 72 Board loading, installed 80 um pinhole.  The serial interface was set to RS422.

  * Spreadsheet of bead performance check results is located in the /nas_remote/PerformanceChecks/CloudDropletProbe directory.

===== Laptop Connection Configuration and Software =====
  * RS-422
  * Baud Rate: 57600

Citation wiring is configured to directly connect to laptop using RS422 to RS232 converter.  If a 422 to USB converter is used then an adaptor is necessary.  Furthermore, an adaptor is needed to connect to the M300 Serial box.

The DMT PADS 3 software can be used to connect and test the CDP.  When installing the PADS 3 software it is important to copy the CDP directory to C:/Program Files/PADS 3.  The PADS 3 software is locate at /nas/Instrumentation/CloudDropletProbe/Software.

===== Problems and Solutions =====
  *[[atmos:citation:instruments:cdp:cdp_problems_solutions|CDP Problems and Solutions]]