Connect-Tek Transa PRO 17 Manual de Instruções Página 36

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3–10 Deviation Band Alarm
A deviation band alarm presets two reference levels relative to set point. Two types of
deviation band alarm can be configured for alarm 1 and alarm 2. These are deviation band
high alarm (A1FN or A2FN select DB.HI) and deviation band low alarm (A1FN or A2FN
select DB.LO). A1SP and A1HY are hidden if alarm 1 is selected as a deviation band
alarm. Similarly, A2SP and A2HY are hidden if alarm 2 is selected as a deviation band
alarm. The trigger level for deviation band alarm moves with the set point. For alarm 1,
the trigger level=SP1±A1DV. For alarm 2, the trigger level=SP1±A2DV. One of four
alarm modes can be selected for alarm 1 and alarm 2. These are: normal alarm, latching
alarm, holding alarm and latching/holding alarm. See section 3-8 for descriptions of these
alarm modes.
Examples:
2 types of
Deviation Band Alarms:
DB.HI, DB.LO
Deviation band alarm 1:
Setup: A1FN, A1MD
Adjust: SP1, A1DV
Trigger level = SP1±A1DV
Deviation band alarm 2:
Setup: OUT2, A2FN, A2MD
Adjust: SP1, A2DV
Trigger level = SP1±A2DV
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