ETI ADH NETCOM Automatic Waveguide Dehydrator

ETI ADH NETCOM Automatic Waveguide Dehydrator

The ETI ADH NETCOM is an automatic air dehydrator that supplies low-pressure dry air to protect antenna waveguides, dielectric coaxial cables and other pressurized transmission systems.

The dehydrator features a field-programmable operating pressure range from 0.3 to 7.5 psig and a maximum flow rate of 25.4 scfh (12 lpm). A brushless dual-diaphragm compressor provides quiet, low-vibration operation and long service life.

The ADH NETCOM uses high-efficiency aluminum-oxide desiccant and demand-based regeneration. An internal humidity sensor initiates regeneration according to the measured dew point instead of fixed time intervals, helping reduce energy consumption and extend desiccant life.

Ethernet connectivity allows remote configuration, monitoring and control through a built-in web interface or SNMP. RS-422/485, RS-232 and three programmable alarm relays support integration with legacy monitoring systems. The front-panel display allows local IP configuration and shows pressure, duty cycle, temperature, compressor hours and air-drying-canister status.

Model: ADH NETCOM
Application: Waveguide and coaxial-cable dehydration
Area of Use: Non-hazardous locations
Regeneration Method: Automatic, demand based
Pressure Range: 0.3-7.5 psig (20.68-517 mbar)
Pressure Adjustment: 0.01 psig (0.67 mbar) increments
Default Pressure: 0.5 psig (34.5 mbar)
Maximum Flow Rate: 25.4 scfh (12 lpm)
Maximum Dew Point: -40°F/-40°C
Internal Safety-Relief Valve: 8 psig (552 mbar)
Communications: Ethernet, HTTP web interface, SNMP, UDP, TFTP, TCP, RS-422/485 and RS-232
Alarm Outputs: Three programmable Form C, SPDT relays
Display: Local status display with selectable psig or millibar units
Displayed Information: Pressure, duty cycle, temperature, compressor hours and desiccant-canister status
AC Power Supply: 100-240 VAC, 50/60 Hz
DC Power Supply: +/-20-75 VDC
Power Consumption: 40 W typ., 150 W maximum
Discharge Port: 1/8-inch NPT
Included Fittings: 3/8-inch and 1/4-inch hose barbs
Operating Temperature: 32°F to 131°F (0°C to 55°C)
Storage Temperature: -40°F to 140°F (-40°C to 60°C)
Dimensions: 17 x 12.25 x 5.25 in. (432 x 311.15 x 133 mm)
Weight: 16 lb (7.26 kg)
Mounting: Dual-post rack, single-post rack or wall mount
Rack Space: 3U
Warranty: Two years

Standard Configurations

• 25895: ADH NETCOM Automatic Dehydrator, AC
• 25527: ADH NETCOM Automatic Dehydrator, DC

Related NEMA Outdoor Configurations

• 25896: ADH NETCOM NEMA Automatic Dehydrator, 100-240 VAC
• 25921: ADH NETCOM NEMA Automatic Dehydrator with Mil-Spec Connectors, Type 1
• 25922: ADH NETCOM NEMA Automatic Dehydrator with Mil-Spec Connectors, Type 2

Key Features

• Supplies dry, pressurized air for antenna waveguides and coaxial cables

• Field-programmable pressure range from 0.3 to 7.5 psig

• Maximum flow rate of 25.4 scfh

• Automatic demand-based desiccant regeneration

• Humidity-sensor-controlled regeneration

• Brushless dual-diaphragm compressor

• Quiet, low-vibration operation

• Remote monitoring and control through Ethernet

• Built-in web interface and SNMP support

• RS-422/485 and RS-232 interfaces for legacy systems

• Three programmable alarm relay outputs

• Configurable master/slave operation

• Local display for IP configuration and status monitoring

• Field-upgradable software

• AC and DC power configurations

• Rack or wall mounting

• Low energy consumption