Revision 1
73
9/10/2019
•
Sensor Calibration
-
If the analyzer is unable to adjust the detector output to 1000mV on
white tape even after raising the sensor current to the maximum allowable value, the sensor
calibration alarm will be triggered. This alarm will typically be triggered if the tape does not
move correctly and the stain becomes exceptionally dark before the next analysis begins, or
if there is no tape present.
•
Bypass
-
Indicates that the analyzer is in the Bypass mode.
5.6.2 Analog Input Alarms
The top right side of the
Alarms
tab presents eight analog Input alarm references and their
associated indicators. The four analog Input
Greater Than Limit
and four
Less Than Limit
fields refer to alarm set points set on the
Analog Inputs
tab and will be discussed in more
detail in Section 5.17.
5.6.3 Analysis Alarms
The bottom half of the tab presents the analysis alarms for each of the streams. Each stream
has 6 available types of gas runs, each with its own set of alarms.
•
High Alarm
- is the first warning set point in a concentration range where the operator may
need to be alerted of a situation in the process.
•
High High Alarm
- is the second warning set point in a concentration range where the
operator may need to take actions to alleviate this alarm. Many users will use this set point
to “Shut in” the process being monitored.
Deviation Alarm
- is an alarm when consequent runs vary from each other by a greater
percentage than the value set on the
Streams
tab (Section 5.10).
•
Lock Alarm
- This alarm will lock the analyzer in what ever stream it is currently in if it
exceeds the limit value. All alarm types can be configured to trigger specific relays and/or
outputs. To enable specific outputs for each alarm, simply put a checkmark in the desired
checkboxes in the
Actions
box.
Summary of Contents for ProTech903W
Page 8: ...Revision 1 8 9 10 2019...
Page 109: ...Revision 1 109 9 10 2019 Figure 5 34 Create Modbus List Dialogue Box...
Page 112: ...Revision 1 112 9 10 2019 Figure 5 36 Typical Modcon with Floating Point List...
Page 141: ...Revision 1 141 9 10 2019 Figure 6 18 Status Tab...
Page 171: ...Revision 1 171 9 10 2019...
Page 172: ...Revision 1 172 9 10 2019 Section 13 MSDS Information...