Model NGA 2000 TO2
Instruction Manual
b.Alarms
From the Analyzer Module Setup and Controls menu, choose Alarms as follows:
Main Menu
↓
Analyzer and I/O, expert controls and setup…
↓
TO2 | 37.50 ppm |
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Calibration…
Alarms…
Ranges…
Linearization…
Measurement display configuration…
Concentration measurement…
Flow measurement…
Temperature measurement…
Measure | Status… | Back… |
TO2 | 37.50 ppm |
| |
Alarm delay: | 1.0 s |
Concentration alarm setup… |
|
Measure | Back… | ClrAlm! |
Move the cursor to the “Alarms…” line and press the ↵ key. The “Alarms” menu will dis- play as shown below.
The “Alarm delay” function on the Alarms menu establishes the time between an ex- ceedance and the triggering of the alarm. It is adjustable from 0.0 to 30.0 seconds. Move the cursor to the “Alarm delay:” line and press the ↵ key. Adjust the value using the ↑ and ↓ keys or select the digit using the ← and → keys.
Use the F5 (ClrAlm!) key to clear any acti- vated alarms. This should be done only after the signal has returned to the allowed range to reset the alarm for new events.
Move the cursor to the “Concentration alarm setup..” line and press the ↵ key to reach the “Concentration Alarm Setup” menu as shown below.
TO2 |
| 37.50 ppm |
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| Alarm generation is:Re |
| s…On |
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| Level for |
| 0.0 ppm |
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| Level for Low alarm: |
| 10.0 ppm |
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| Level for High alarm: |
| 50.0 ppm |
| |
| Level for |
| 100.0 ppm |
| |
|
| Off |
| ||
| Low alarm: |
| On |
| |
| High alarm: |
| Off |
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| Off |
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| Measure |
| Back… |
|
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To turn alarms on or off, select the “Alarm generation is:” line and toggle it between “On” or “Off.”
Four alarms are available. Select any alarm and adjust the concentration value for trig- gering that alarm. Setting an alarm concen- tration to 0.0 will deactivate that alarm.
The status of the alarms displays below the line.
Figure 3-18. Alarms
Rosemount Analytical Inc. A Division of Emerson Process Management | Operation |
