Controller / User Interface | 4-27
Display
During normal operation, these message lines display the real-time
status of the species being measured (top line) and its concentration
value (bottom line).
When an Auto-Setup is in progress, messages indicating the current
stage of the Auto-Setup are displayed on the top line. Auto-Setup mes-
sages include:
• Adjusting PMT Level
• Adjusting Lamp Pulses
• Adjusting PMT Balance
• Adjusting PMT Level
• Adjusting Lamp Pulses
• Setting Up ALC
• Off/Completed
This information is also displayed on other screens.
Green text = normal conditions.
Red text = Warning or Fault alarm active.
For details about alarms and corrective action required to reset alarms,
see “Diagnostics and Troubleshooting” in Chapter 6.
Auto-Setup button
Initiates the Automatic-Setup, which optimizes the PMT gains and
source lamp currents. This function combines automatic signal adjust-
ment with manual jumper positioning. The Auto-Setup process takes
approximately three minutes. Always perform an Auto-Setup after
any lamps, optical filters, or PMTs have been replaced.
When this button is clicked, a pop-up message is displayed asking
“Would you like to proceed with the Bench Auto Setup?”. This mes-
sage also lists conditions that need to be met before proceeding. If the
conditions have been met and you wish to proceed with the Auto-
Setup, click Ye s. If not, click No.
After a successful Auto-Setup, the PMT Level should be 7200–7400
mV, while the PMT Balance should be 2000–9000 mV. If these val-
ues are outside these ranges, see “PMT Level and PMT Balance” in
Chapter 6.
Cancel Auto-Setup button
Stops the Automatic-Setup.
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