The Automatic Air Dehydrator model ADH-3COM manufactured by Environmental Technology is claimed to improve earth station reliability; has high energy efficiency; can be used unattended; has international capability.
The device supplies low pressure -40°C maximum dewpoint air to keep waveguides and coax dry. The standard pressure is 34.5 mbar with 207 mbar and 414 mbar options.
Standard features include automatic regeneration, alarm and low pressure relays and an RS422/RS485 communications interface making unattended operation practical.
The unit 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.
It operates with very low noise and vibration levels. The dehydrator uses aluminium oxide desiccant for high efficiency. The humidity sensor causes regeneration based on current dewpoint rather than at fixed time intervals for additional energy savings and long desiccant life.
Dual microcontrollers, dual pumps and solid-state circuitry ensure reliability. Two ADH-3COM dehydrators can be connected in master/slave configuration to provide redundancy and increase reliability.
An internal evaporator eliminates the need for a water drain. The dehydrator operates from 120/230 V 50/60 Hz or 24 VDC or 48 VDC. A user-set jumper selects the display of either SI or English units.
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