Automatic Air Dehydrator with Ethernet Communications for Outdoor & Mobile Applications
MODEL ADH ® NETCOM™ NEMA
Features & Benefits
- Provides dry pressurized air to ensure signal quality of antenna waveguide and dielectric coaxial cable
- Highly confi gurable to meet the needs of wide ranging applications
- Programmable operating pressure range: 0.10 psig - 7.50 psig (7mbar - 517mbar)
- Brushless compressor for long life
- Future-proof software based features allow updates and upgrades while in service
- Remote monitoring and control with web interface or SNMP
- Configurable Master/Slave operation
- Ethernet, RS-422/485, RS-232 and alarm relay outputs
- Durable, light weight IP66, NEMA 4X enclosure
- Designed to allow minimal flex without damaging enclosure or components for mobile and other high vibration applications
- Optionally available with military style connectors
- Low energy use minimizes operational costs
DESCRIPTION
The ADH NETCOM automatic dehydrator supplies low pressure dry air to keep waveguide and coaxial cable dry. Output pressure is configurable between 0.10 psig and 7.50 psig (7mbar - 517mbar) in 0.01 psig (0.67mbar) increments. Factory default pressure is 0.5 psig (34.5mbar). Operational monitoring and alarms are software based making them highly configurable in the field. Future software features can be installed while in service over the internet or local Ethernet network.
The ADH NETCOM automatic dehydrator is Ethernet network ready. Units can be configured and monitored using either built in SNMP support or the web interface. Legacy system support is provided via RS-422/485 or RS-232 interfaces. Three programmable alarm relays are also included. Communicated operational information includes output pressure, duty cycle, temperature, compressor hours and air drying canister status.
The ADH NETCOM automatic dehydrator uses a brushless dual-diaphragm pump for long life. Dehydrator operates with exceptionally low noise and vibration levels. The air drying canisters use aluminum oxide desiccant for high efficiency. The humidity sensor signals for regeneration based upon current dew point rather than at fixed time intervals for additional energy savings and long desiccant life.
The ADH NETCOM NEMA automatic dehydrator provides the same functionality as a standard ADH NETCOM in an environmentally sheltered IP66, NEMA 4X enclosure. It is ideal for use with mobile satellite antenna installations and for outdoor mounting for pressurization systems localized to the antenna pedestal. This outdoor configuration is also ideal for use in pressurization systems in remote locations such as along rail lines, pipe lines and at power distribution substations. While the NEMA enclosure keeps out moisture, the temperature control system allows operation down to –40°F (–40°C) The ADH NETCOM NEMA automatic dehydrator weighs just 24 lbs (10.9 kg).
For complete information describing its application, installation and features, please contact Customer Service or check on the web at www.networketi.com.
SPECIFICATIONS
| General | |
|---|---|
| Pending Approvals |
|
| Regeneration Method | Automatic, demand |
| Maximum dew point | −40˚ F/C |
| Enclosure | |
|---|---|
| Type | Hoffman® POLYPRO® Polyester Type 4X |
| Cover Attachment | Hinged, lockable |
| Protection | IP66, NEMA 4X |
| Dimensions | 15.31" × 18.06 " × 9.25 " (389mm × 459mm × 235mm) |
| Entries | 1 x 0.88" (22mm) entry for supply power 2 x 0.63" (16mm) entry for dry pressurized air and condensate discharge |
| Weight | 24 lbs (10.9 kg) |
| Mounting | Wall, post/pole or shelf mounted |
| Power |
|
|---|---|
| Supply | 100-240 VAC, 50/60 Hz ±20-75 VDC |
| Maximum current | 1.0 Amps at 100 V |
| Power usage | 40 W typical, 100 W max |
| Output | |
|---|---|
| Flow rate | 25.4 scfh (12 lpm) |
| Maximum pressure | 7.5 psig (517mbar) |
| Internal safety relief valve | 8 psig (552mbar) |
| Discharge port | 1/8" NPT 3/8" or 1/4" hose barb (both included) |
| Display units | SI (millibars); English (psig), default |
| Control | |
|---|---|
| Protocols | HTTP (Web Interface), SNMP, UDP, TFTP |
| Maximum pressure | Confi gurable Range: 0.20 psig - 7.5 psig (14mbar - 517mbar), Default: 0.50 psig (34.5mbar) |
| Minimum pressure | Confi gurable Range: 0.10 psig - 7.4 psig (7mbar - 510mbar), Default: 0.30 psig (21mbar) |
| Low pressure alarm level | User Configurable, Default: 0.15 psig (10mbar) |
| High pressure alarm level | User Configurable, Default 1.5 psig (103.5mbar) |
| Alarm relays | Contact Type - Form C, SPDT, reverse acting Ratings - 0.25 Amps @ 60 V User configurable, Defaults:
|
| Duty cycle alarm | User configurable, Default: 50% |
| Master/Slave configuration | User configurable, Default: Standard/Slave |
| Environmental |
|
|---|---|
| Operating temperature | −40°F to 130°F (0°C to 55°C) |
| Storage temperature | −40°F to 150°F (−40°C to 60°C) |
ORDERING INFORMATION
| Order Number | Description |
|---|---|
| 23483 | ADH NETCOM NEMA Automatic Dehydrator, 100-240 VAC |
| 23589 | ADH NETCOM NEMA Automatic Dehydrator, ±20-75 VDC |
| 23740 | ADH NETCOM NEMA Automatic Dehydrator, 100-240 VAC w/ Mil-Spec Connectors |
| 23742 | ADH NETCOM NEMA Automatic Dehydrator, ±20-75 VDC w/ Mil-Spec Connectors |
| 23739 | ADH NETCOM NEMA Mil-SPec Connector Accessory Kit (for 23483 & 23589) |
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