Tempco TEC-2500, Инструкция по эксплуатации

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3–10 Deviation Alarm
OUT2 can be configured as alarm 2 by selecting AL2. If AL2 is selected for OUT2, then
output 2 will perform alarm 2 function. Now NONE can't be selected for A2FN, otherwise
Er06 will appear. A deviation alarm alerts the user when the process deviates too far
from the set point. The user can enter a positive or negative deviation value (A1DV,
A2DV) for alarm 1 and alarm 2. A hysteresis value (A1HY or A2HY) can be selected to
avoid interference problems in a noisy environment. Normally, A1HY and A2HY can be
set with a minimum (0.1) value. The trigger level of the alarm moves with the set point.
For alarm 1, trigger level=SP1+A1DV±A1HY.
For alarm 2, trigger level=SP1+A2DV±A2HY.
A1SP and/or A2SP are hidden if alarm 1 and/or alarm 2 are set for deviation alarm. 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 3-9 for
descriptions of these alarm modes.
Examples:
Error Code
2 Types of deviation alarms:
DE.HI, DE.LO
Deviation alarm 1:
Setup: A1FN, A1MD
Adjust: SP1, A1DV, A1HY
Trigger levels:
SP1+A1DV±A1HY
Deviation alarm 2:
Setup: OUT2, A2FN, A2MD
Adjust: SP1, A2DV, A2HY
Trigger levels:
SP1+A2DV±A2HY