Aalborg PWE Digital User Manual

Page 39

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34

The listed above Alarm Mode selections can be set with the Up and Dn buttons
and are accepted by pressing ENT button.

4.4.2 Low Flow Alarm Numerical entry

The limit of required Low Flow Alarm value can be entered in increments of
0.1% from 0 - 100%F.S.

A typical display with flow meter Low Flow Alarm is shown below.

If a Low Alarm occurs, and one of the two optical outputs is assigned to the Low
Alarm Event (see Section 4.8) the optically isolated output will be activated when
the flow is less than the Low Flow Alarm value. The Flow Alarm condition is also
indicated on the display Process Information Screen by displaying L character. A
typical display with flow meter Process Information Screen and activated Low
Flow Alarm is shown below.

4.4.3 High Flow Alarm Numerical entry

The limit of required High Flow Alarm value can be entered in increments of 0.1%
from 0 - 100%F.S.

A typical display with flow meter High Flow Alarm settings is shown below.

Note: The value of the Low Flow Alarm must be less than the
value of the High Flow Alarm.

,

Note: The value of the High Flow Alarm must be more than the
value of the Low Flow Alarm.

,

Low Flow Alarm

10.0 %F.S.

0.401 Gl/min AL

MT: 65.81 Gal

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