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Alarms
The CTVideo has the following Alarm
features:
Output channel 1
To activate the alarm function the output channel has to be switched into digital mode. For this purpose the
software is required.
Visual Alarms
These alarms will cause a change of the color of the LCD display and will also change the status of the
optional relays interface. In addition the Alarm 2 can be used as open collector output at pin AL2 on the
mainboard [24 V/ 50 mA].
From factory side the alarms are defined as follows:
Alarm 1
Alarm 2
Extended setup like definition as low or high alarm [via change of normally open/ closed], selection of the
signal source [TObj, THead, TBox] can be done with the software.
thermoMETER CTVideo
Norm. closed/ Low-Alarm
Norm. open/ High-Alarm
All alarms (alarm 1, alarm 2, output channel 1 and 2 if used as
alarm output) have a fixed hysterese of 2 K.
Both of these alarms will have
effect on the LCD color:
BLUE:
alarm 1 active
RED:
alarm 2 active
GREEN:
no alarm active
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