Low Cost Air Dehydrator
MODEL EDH™–4
(PDF
Version  )
BENEFITS
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Improves earth station reliability |
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High energy efficiency |
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International capability
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FEATURES
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120/230 volt 50/60 Hz operation
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Selectable English or SI calibration |
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Low Cost |
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Rack, wall, or outdoor mounting |
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Quiet
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Simple installation |
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Convenient drying agent replacement |
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Microprocessor control
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Low pressure and replace desiccant alarm relays |
DESCRIPTION
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.
The discharge pressure is 0.5 psig with a maximum flow
rate of 6.0 scfh with a typical dew point below -40°
C. The EDH–4 indicates pressure and status on
a bright red LED display. A microcontroller regulates
pressure and controls all dehydrator functions. Solid
state control of all functions insures reliability.
The desiccant container is conveniently replaceable
from the front, without removing the dehydrator from
its rack. Modular subsystems eliminate the need for
special tools and test equipment should repairs ever
be required. The dehydrator limits continuous air pump
operation to four hours in the event of a severe leak.
CE, 120/230 volt 50/60 Hz 24 va (maximum) operation
and selectable English or SI calibration ideally suit
the EDH–4 for global applications. A variety of
mounting configurations combined with a -40° to
60°C operating temperature range provide location
flexibility.
SPECIFICATIONS
| Dimensions |
19" x 5.25" x 7" (48.3cm x 13.3cm
x 17.8cm) (Rack Mount) |
| Dimensions |
22.27" x 5.25" x 8" (55.6cm x 13.3cm
x 20.3cm) (Wall Mount) |
| Dimensions |
24.2" x 13.5" x 12.2" (61.5cm x
34.3cm x 31cm) (NEMA) |
| Weight |
Approximately 5 pounds (2.4Kg) (Rack and Wall
Mount) |
| Weight |
Approximately 48 pounds (24Kg) (NEMA) |
| Discharge Port |
1/8 inch NPT female fitting, 1/4 inch (6.4mm)
hose barb |
| Data Display |
Pressure, Error Codes |
| Alarm Relay capacity |
2 Amp @ 30V DC |
| Typical dew point |
Below -40° C |
| Pressure |
0.5 psig standard |
| Flow rate |
6.0 scfh standard |
| Supply voltage |
120 volts 50/60 Hz standard 24 VA (maximum) |
| Regeneration |
Manual drying agent replacement |
| Low pressure alarm relay |
SPDT (low voltage) |
| Desiccant replacement alarm relay |
SPDT (low voltage) |
| Operating temperature range |
-40° to 60°C |
| Storage temperature range |
-50° to 75°C |
ORDERING INFORMATION
Order Number - Description
18021- EDH–4 Low Cost Air Dehydrator
18063 EDH-4 Users Manual
17982 - Wall mount adapter
18250 - Outdoor unit / NEMA 3R Enclosure
18138 - Replacement Desiccant
LIMITED WARRANTY
ETI's two year limited warranty covering defects in
workmanship and materials applies. Contact Customer
Service for complete warranty information.
DISCLAIMER
Environmental Technology, Inc. makes no representations
or warranties, either expressed or implied, with respect
to the contents of this publication or the products
that it describes, and specifically disclaims any implied
warranties of merchantability or fitness for any particular
purpose. Environmental Technology, Inc. reserves the
right to revise this publication, and to make changes
and improvements to the products in this publication,
without the obligation of Environmental Technology,
Inc. to notify any person or organization of such revisions,
changes or improvements. The ETI logo, Snow Switch,
Floorstat, Tracon, and Heat Systems are registered trademarks
of Environmental Technology, Inc. We Manage Heat, Digital
Anticipation, ComfortTouch, Dry Floors, LCD, APS, SC,
GIT, SIT, CIT, ES, HSC, FWT, GPT, ADH, EDH, RCM, RCD,
RCU, FMC, SMT are trademarks of Environmental Technology,
Inc. Copyright 2000, All rights reserved.
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