NEW BRUNSWICK SCIENTIFIC BioFlo 415, Руководство по эксплуатации

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BioFlo 415
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M1360-0050 User’s Guide
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14.1 ABS and DEV Alarms
There are two types of alarm modes you can set, Absolute (ABS) and Deviation
(DEV):
ƒ An Absolute alarm is triggered when the control loop’s Process Variable falls
below the absolute Low limit or rises above the absolute High limit that you
set.
ƒ
A Deviation alarm is triggered when the control loop’s Process Variable falls
below or rises above the control band that you specify around the loop’s
setpoint (e.g., a tolerance of 10 rpm above or 5 rpm below the Agitation
setpoint).
14.2 Setting Alarms
To set alarms:
1. Press the ALARMS button to open the ALARM screen (
see Figure 21
,
repeated here for easy reference,
and Table 10
, which explains the features
of this screen).
Figure 21: Alarm Summary Screen
2. Press the first loop
for which you want to
enable an alarm. That
loop’s individual Alarms
Screen will open. For
this example, we use
the Agitation loop.