The EDH-4 answers the need for a low cost manually regenerated dehydrator for pressurizing small volume waveguide and coax.  It is especially well suited for Ku and Ka band applications.  Improves earth station reliability, High energy efficiency, and International capability.

• Typical dew point: Below -40° C
• Pressure: 0.5 psig standard (34.5 mbar)
• Flow rate: 6.0 scfh standard (2.8 l/min)
• Supply voltage: 120/230 VAC, 50/60 Hz,
• Power Requirements: 40 VA maximum
• Regeneration: Replace or regenerate the desiccant
• Low pressure alarm relay SPDT (reverse acting)
• Desiccant replacement alarm relay: SPDT (reverse acting)
• Operating temperature range: -40°F to 140°F (-40° to 60°C)
• Storage temperature range: -58°F to 167°F (-50°C to 75°C)
• Dimensions: 19"W x 5.25"H x 7"D (48.3cm x 13.3cm x 17.8cm) (Rack Mount)
• Dimensions: 22.27"W x 5.25"H x 8"D (55.6cm x 13.3cm x 20.3cm) (Wall)
• Dimensions: 24.2"W x 13.5"H x 12.2"D (61.5cm x 34.3cm x 31cm) (NEMA)
• Weight: Approximately 5 pounds (2.4 kg) (Rack and Wall Mount)
• Weight: Approximately 48 pounds (24 kg) (NEMA)
• Dischage Port: 1/8" NPT female fitting, 1/4" (6.4mm) hose barb
• Data Display: Pressure, Error Codes
• Alarm Relay capacity: 2 Amp @ 30V DC

The discharge pressure is 0.5 psig with a maximum flow rate of 6.0 standard cubic feet per hour (2.8 l/min) with a typical dew point below -40°C.  Neither light level nor height present a viewing problem, since the EDH-4 indicates pressure and status by using a bright red LED display.  

A microcontroller regulates pressure and controls all dehydrator functions.  Solid state control of all functions ensures reliability.  A convenient container, accessed through a removable front panel door, contains the replaceable desiccant. Modular sub systems eliminate the need for special tools and test equipment, should repairs ever be required. The EDH-4 limits continuous compressor operation to four hours in the event of a severe leak.

The EDH-4 120/230 VAC, 50/60Hz supply voltage source selection and switchable English or SI calibrations, ideally suit the EDH-4 for a wide range of global applications. The maximum power requirement is 40VA. Available rack, wall and outdoor NEMA 3R mounting options combined with a -40°F (-40°C) to 140°F (60°C) operating temperature range provide location flexibility.