APD20-D Automatic Dehydrator

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  • Regular price $2,795.00

The APD20-D Automatic Dehydrator provides reliable pressurization of elliptical waveguide, coaxial cable and rigid transmission line systems with remote monitoring capabilities.

Automatic Pressurization Dehydrator

  • Reliable Pressurization of elliptical waveguide, coaxial cable and rigid transmission line systems
  • Alarm Notifications for Low Pressure, High Pressure, Humidity, and Run Time
  • Monitoring via Remote Samples


Max System Volume

123 ft3

Output Capacity @ 60 Hz

0.2 SCFM

Output Dew Point

Ambient dew point greater than 10°C (50°F): 50 (90) dew point reduction minimum

Ambient dew point less than 10°C (50°F): -40 (-40) dew point minimum

High Pressure Safety Relief Valve

15 psig

Output Fitting

Quick-Connect 3/8” OD Plastic Tube

Operating Voltage

Dehydrator 120 VAC, Controller 5 VDC

Maximum Continuous Operation Time, Active

4 Hours




Ambient Temperature Range

0 to 40 °C (32 to 104 °F)

Ambient Humidity Range

5% – 85%, non-condensing


60 dBA

Max. Operational Altitude @ 5 psig

6500 ft.

Max. Operational Altitude @ 10 psig

5000 ft.

Capacity derating per 1000 ft altitude above MSL

0.024 CFM




Low Pressure Operation: Software configurable from 1-2.5 psig in 0.5 psig increments


High Pressure Alarm: Software configurable from 3-11 psig in 1 psig increments


Humidity Alarm: Software configurable from 20-50% RH in 10% RH increments


Run Time Alarm: Software configurable from 10 minutes to 4 hours in 10 minute increments


System Purge: Software configurable from 2-10 days in 2 day increments




Designed to provide remote status monitoring of the Radio Frequency Systems Dehydrator Model/Options APD20 - D - 35XH0R00S0.