Baker Hughes Panametrics AquaTrans AT600, Руководство пользователя

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AquaTrans™ AT600 User’s manual 51
Chapter 4. Initial setup and programming
Setting the alarm state
Setting the alarm type
Setting the alarm value
Use the [

] or [

] arrow keys to select alarm state and press[√].
A screen similar to the following opens.
Two alarm states are available:
• Normal: Normally open, the alarm contacts close in an
error condition
• Fail safe: Normally closed, the alarm contacts open upon
in an error condition or a power failure
To change the state of the alarm, select the desired status and
press [√]. The screen returns to the previous display.
Use the [

] or [

] arrow keys to select alarm type and press [√].
A screen similar to the following opens.
You can choose from three alarm types:
• Low: the alarm trips only if the measurement falls to or
below the threshold value
• High: the alarm trips if the measurement rises to or
exceeds the threshold value
• Fault: the alarm trips only for system errors, such as a
power failure
To change the type of alarm, select the desired type and press
[√] to return to the previous screen.
The alarm value is the threshold that trips a low
or high alarm. To check or change the alarm
value, select alarm value and press [√]. A screen
similar to the following opens.