24431
Rev. A
10/12
http: www.networketi.com
Environmental Technology, Inc.
13 of 94
Automatic Air Dehydrator
ADH
®
SIROCCO™
Instruction Manual
Typically, the system should be tight enough to limit the duty cycle to less than
20%. Dehydrator life decreases as duty cycle increases. A Duty Cycle Alarm
occurs if the duty cycle exceeds the configured Duty Cycle Alarm level. The
factory default Duty Cycle Alarm level is 50%.
DISPLAYS
Standard display configuration includes two LED indicators on the front panel, for
POWER and SUMMARY ALARM, and an OLED display. Refer to Figure 2.
Figure 2. THE ADH SIROCCO.
The ADH Sirocco automatic air dehydrator includes three alarm relays which
communicate alarm conditions. These are configured at the factory for Summary
Alarm, Low Pressure Alarm, and Dew Point Alarm, though the third alarm relay
can be configured by the operator to indicate any of the alarm conditions tracked
by the dehydrator. Each relay has one contact which closes on an alarm
condition, or loss of power, and one contact which opens under the same
circumstances. Refer to Table 2 on page 76 for more information.
SUPPLY POWER
The ADH Sirocco automatic air dehydrator has a switching power supply which
operates from 100 to 240 VAC, 50/60Hz. The unit does not require any user
adjustments to operate within the allowed supply power range.
