Vaisala HydroMet User's Guide download pdf (Page 130)

User’s Guide ______________________________________________________________________

128 __________________________________________________________________M210785EN-E

Set Digital Output Alarms

The set digital output alarm is similar to the excitation output alarm,

except that it uses one channel from the optional digital I/O module to

serve as the controlled output. You can add the QMI digital I/O module

to your setup in the Optional Hardware view.

Generic Alarms

With this alarm type you can trigger most of the QML logger user

functions. Note that as it provides more complex setup control and very

few security checks, use it with caution, preferably only when

instructed by Vaisala personnel.

Update Timer Interval

The update timer interval is not an alarm, but it provides threshold-

controlled event interval management. You can use it, for example, to

change the report triggering interval in steps according to the measured

value. This is performed on the Advanced user level. For more

information, see section Changing Timer Intervals on page 182.

Creating Alarms

Create the alarms in the Select Alarms frame, which is divided into two

list boxes. The Available alarms list box lists the available alarm types.

The Name/Type list box contains two lists displaying both the names

and types of the created alarms.

To create an alarm, proceed as follows:

1. Choose the alarm type from the Available alarms list box by

clicking on it.

2. Drag the selected item into the Name/Type list box or click Add.

NOTE

Choose the correct alarm type carefully because you cannot change the

type after you have created the alarm. You can only delete the alarm

and create a new one.

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Vaisala HydroMet User's Guide Page 130