1 & 2 - Output -
The outputs can power a siren or other warning device, or
in the case of contacts, can trigger any number of warning devices by powering
a relay or like device.
3 - Isolated Contacts -
defined as electrically isolated contacts which can
be used to switch any device within the rated voltage and current of the
contacts. This is necessary when directly connecting to a Security Control
Panel, Communication device, or any device that provides or has its own power
or voltage requirements.
4 - Absolute voltage vs Rate-of-change-of
voltage principle - means
that the absolute fence voltage is not measured, but its only the "change
of voltage" (plus or minus) within a fixed time frame that is sensed
(Delta T). As long as the fence voltage remains constant or changes slowly over
a period of time, the "alarm" condition will not be sensed and alarm
will not be activated.
5 - Absolute
Voltage Sensing -
senses the
absolute true voltage as would a voltmeter or other measuring device, rather
than the float or average voltage of your high voltage device.
6 - Absolute Voltage Control
-
controls from an absolute true voltage setting.
EX: if the maintenance "Low Voltage" set point is set to 7.5
kilovolts, then when the voltage drops below 7.5kv, a "Low Voltage"
output will be provided. This feature is particularly valuable when the slow
growth of weeds gradually drop the fence voltage yet would NOT initiate a
"Rate of Change" alarm condition.
7 & 8 -
Adjustable time delay -
"time delay" is the time provided from
the start of an abnormal voltage condition, to the point of actually initiating
an alarm or warning output.
10, 11 & 12 - Light Indicator - shows the situation of the
fence.
15 - Low
Current Consumption -
the device draws very little current during normal
operation. Typically about 0.05 amps which provides long battery life when
utility power is off.
16 - Set point -
is the fence voltage above which the electric
monitor will show a working fence and below a failing fence. In the case of the
"Fence Hawk" there are 2 set points. One is for the "low
voltage" alarm which is adjustable, and one is for the "no
voltage" alarm.
17 - Customized time delay:
From time to time, an installation requires
special needs. Special needs are easily met, by either the customer or by
request. We would hope that our customer service will stand as a model for the
rest of the industry.
For Detailed Fence Hawk Specifications,
please click
here
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