Bird Technologies 3129 Display - Manual (Page 47)

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Config Screen
The Config (Configure) screen has two tab views, Alarms and Frequency. The
administrator of the WebTool can set an optional password requirement to con-
trol who can make changes to the Config screen (refer to Admin Screen for pass-
word control).
For more information about the Config screen, refer to the help section in the
software (click on the Help button).
Alarm Tab
In the Alarms tab (Figure 17, page 32), you specify BPM-E alarm settings. To
return to the factory default alarm settings, click on the Factory Default button.
After you have set the alarm preferences, click the Apply Changes button to
record your settings in memory.
You can select or deselect the following alarm conditions:
Master Alarm Enable - When checked, activates the VSWR alarm and
enables all other alarm conditions that have been selected (boxes checked), dis-
ables all alarms when not checked.
VSWR trip point - Specify the VSWR value that will cause an alarm (select val-
ues from the drop-down list). This value is adjustable from 1.3 to 2.5 by incre-
ments of 0.1. Check the VSWR Alarm Enabled on Zero Power checkbox to allow
the VSWR alarm to trigger at very low forward power (< 2.5% of full scale
power). Refer to See “Determining VSWR Alarm Trip Point” on page 53 for addi-
tional information about limitations of the VSWR trip point.
High Power Alarm (forward power only) - Check the Enable box and spec-
ify the percentage of full scale at which an alarm will occur. The high power
value must be greater than the low power value. The maximum value is 125% of
full scale power. The alarm setpoint is entered as a percent of full scale. For
example, if you have a 500W full scale unit and would like an alarm when the
forward power exceeds 375 W, the alarm setpoint would be 375/500 x 100 or
75%. Enter 75 in the field and check the Enable High Power Alarm checkbox.
Low Power Alarm (forward power only) - Check the Enable box and spec-
ify the percentage of full scale at which an alarm will occur. The low power value
must be less than the high power value. The minimum is 0%.
Latch Alarms - Sets whether the alarm will reset automatically in the absence
of an alarm condition. When this checkbox is unchecked, if an alarm trigger is
corrected, the alarm will reset after a forty-five second delay. When the box is
checked, the alarm must be manually reset.
Trigger Alarm Button - After you have set or made changes to alarm settings,
you can use the Trigger Alarm button to test the alarms (messages, relay, TTL out-
puts). If the Config password is enabled, you will be required to enter the password
before you can test the alarm settings.