3-8
Brooks
®
Digital MFC's & MFM's
Section 3 Operation
Installation and Operation Manual
X-TMF-SLA5800-Series-RevB-MFC-eng
Part Number: 541B187AAG
January, 2017
3-6-1
Alarms (Analog versions only) - Configuration Attributes
Alarms are a user configurable feature. This feature may be adjusted via
the Diagnostics Port using a special software application available from
Brooks. Reference the Brooks Expert Support Tool (BEST) User Manual
for more information about the Diagnostic Port and software application.
Each alarm has the following common user configurable attributes:
Alarm Code -
The alarm code specifies the code to be flashed on the LED
to indicate that an alarm condition has occurred. When more than one
alarm is active, then the LED will indicate the most severe alarm with the
highest Alarm Code. Alarm Codes do not have to be unique, i.e., more than
one alarm type can use the same alarm code.
Connector Pin 3, on the 15 pin D-Connector also provides an open
collector TTL output that will close depending on the alarm situation and the
alarm settings for remote monitoring of alarms.
Latching Enable -
When an alarm is set to non-latching that means the
alarm is indicated only when the monitored value exceeds the specified
conditions. When the alarm is set to latching. This means that the alarm 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 alarm contact
is enabled, then the alarm contact (Pin 3) is “closed”.
Low Limit -
The value of the monitored value below which is considered an
alarm 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 condition.(This attribute not valid for alarms that monitor a state
condition of the device.)
Alarm Summary -
The following table summarizes the parameters for
each alarm and the respective default values.
Alarm
Alarm
Low Limit High Limit Error
Hours
Code
(%)
(%)
Diagnostic
12
n/a
n/a
n/a
n/a
High Flow
11
n/a
100
n/a
n/a
Low Flow
10
-1
n/a
n/a
n/a
No Flow Indication
9
n/a
n/a
2
n/a
Setpoint Deviation
8
n/a
n/a
10
n/a
Temperature Out of Limits
7
5
60
n/a
n/a
Totalizer Overflow
7
n/a
n/a
n/a
n/a
Internal Power Supply Failure
6
n/a
n/a
n/a
n/a
Valve Drive Out of Limits
3
0
99
n/a
n/a
Device Calibration Due
2
n/a
n/a
n/a
8760
Device Overhaul Due
1
n/a
n/a
n/a
8760
