Automatic Air Dehydrator
MODEL ADH®– 3COM
(PDF
Version  )
BENEFITS
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Improves earth station reliability |
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High energy efficiency |
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Unattended operation |
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International capability |
FEATURES
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Automatic regeneration |
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Direct digital control |
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LED displays for operating and alarm data |
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120/230 volt 50/60 Hz operation standard |
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English and SI calibration standard |
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S-A and terminal communication protocols |
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CE Certification |
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UL 1950/IEC 950 |
DESCRIPTION
The ADH–3COM Automatic Dehydrator supplies low
pressure -40°F (-40°C) maximum dew point air
to keep waveguide and coax dry. The standard pressure
is 0.5 psig (34.5 mbar) with 3 psig (207 mbar) and 6
psig (414 mbar) options. Standard features include automatic
regeneration, alarm and low pressure relays and an RS-422/RS-485
communications interface thus making unattended operation
practical.
The ADH–3COM uses LED displays and indicators
to provide a wide viewing angle and good visibility
under low-light conditions. Displayed information includes
status, operating and fault diagnosis data along with
air pump operating time.
The ADH–3COM operates with exceptionally low noise
and vibration levels. The dehydrator uses aluminum oxide
desiccant for high efficiency. The humidity sensor causes
regeneration based upon current dew point rather than
at fixed time intervals for additional energy savings
and long desiccant life. Dual micro controllers, dual
pumps, and solid state circuitry insure reliability.
Two ADH-3COM dehydrators can be connected in master/slave
configuration to provide redundancy and increase reliability.
The ADH–3COM requires only 5-1/4" of panel
space. An internal evaporator eliminates the need for
a water drain. The dehydrator operates from 120/230
volts 50/60 Hz. or optionally, 24 VDC or 48 VDC. A user-set
jumper selects the display of either SI or English units.
The ADH–3COM consumes a maximum of 150 watts during
regeneration and approximately 60 watts otherwise. Thus,
this products creates an exceptionally low heat load
for an automatic dehydrator.
SPECIFICATIONS
| Discharge pressure |
0.5 psig (34.5 mbar) standard, 3 psig (207 mbar)
or 6 psig (414 mbar) optional |
| Flow rate |
26 ft3/hr (736 l/hr) |
| Maximum dew point |
-40°F (-40°C) |
| Regeneration |
Automatic, demand |
| Supply voltage |
120/230 volts AC 50/60 Hz |
| Nominal power |
60 watts |
| Maximum power |
146 watts |
| Alarm relay capacity |
240 volts AC at 1 amp SPDT |
| Communications interface |
RS-422, 1200 or 9600 baud, 7 bit, even parity,
1 stop bit, DB-9 connector |
| Pressure connection |
1/4" barbed hose fitting |
| Approximate weight |
31.3 pounds (14.2 Kg) rack & wall
95 pounds (43.1 Kg), outdoor |
| Operating Temperature |
32° F to 130° F (0° C to 55° C),
rack & wall
-40° F to 130° F (-40° C to 55°
C), outdoor |
| Storage Temperature |
-40° F to 150° F (-40° C to 60°
C) |
| Dimensions |
19" x 19" x 5.25" (48.3cm x 48.3cm
x 13.3cm), rack
19" x 21" x 5.25" (48.3cm x 53.3cm
x 13.3cm), wall
24" x 24" x 8" (60.0cm x 60.0cm x
20.3cm), outdoor |
ORDERING INFORMATION
Order Number - Description
17479 - ADH-3COM Automatic Air Dehydrator
17660 - ADH-3COM Users Manual
17845 - ADH-3COM Automatic Air Dehydrator (Wall Mount)
18136 - ADH-3COM Automatic Air Dehydrator (Outdoor Mount)
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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