Brooks, Digital mfc's & mfm's – Brooks Instrument SLA5800 Series User Manual
Page 41
3-9
Brooks
®
Digital MFC's & MFM's
Section 3 Operation
Installation and Operation Manual
X-TMF-SLA5800-MFC-eng
Part Number: 541B027AAG
April, 2013
Latching Enable - When an alarm/warning is set to non-latching, that
means the alarm is indicated only when the monitored value exceeds the
specified conditions. When the alarm/warning is set to latching, this means
that the alarm/warning will be indicated when the monitored value first
exceeds the specified conditions, and will be indicated until the user clears
the alarm. If the user clears the alarm while the monitored value still
exceeds the specified conditions, then the alarm will be re-latched and
continue to be indicated.
Contact Enable - If the alarm condition is detected and the severity is
alarm or warning, and the alarm contact is enabled, then the alarm contact
is “closed”.
Low Limit - The value of the monitored value below which is considered
an alarm/warning condition. (This attribute not valid for alarms that monitor
a state condition of the device.)
High Limit - The value of the monitored value above which is considered
an alarm/warning condition.(This attribute not valid for alarms that monitor
a state condition of the device.)
Delay - The time in seconds that the value must remain above the high
limit or below the low limit before an alarm/warning condition is indicated.
Alarm Summary
The following table summarizes the parameters for each alarm type and
the respective default values.
Alarm
Severity
Alarm
Latching Contact Low
High
Delay
Code
Enable
Enable
Limit
Limit
Diagnostic
Alarm
12
n/a
Off
n/a
n/a
n/a
Flow 1
Off
11
Off
Off
0%
120%
1.0
Flow 2
Off
10
Off
Off
0%
120%
1.0
No Flow Indication
Alarm
9
Off
Off
2%
n/a
1.0
Setpoint Deviation
Alarm
8
Off
Off
-10%
+10%
1.0
Totalizer Overflow
Off
7
n/a
Off
n/a
n/a
n/a
User Power Supply
Alarm
6
Off
Off
13.5
27.0
1.0
Setpoint Input Out of Range
Alarm
5
Off
Off
n/a
n/a
1.0
Flow Output Out of Range
Alarm
4
Off
Off
n/a
n/a
1.0
Flow Output Loop Open
Off
3
Off
Off
n/a
n/a
1.0
Flow Sensor Out of Range
Alarm
1
Off
Off
n/a
n/a
1.0