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atmos:citation:instruments:cdp:home

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

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

    • Firmware: 169D installed
    • 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/home.txt · Last modified: 2022/01/19 23:31 by delene