GE Sievers 900 Series, Operation And Maintenance Manual

Page: 119 / 236

GE Analytical Instruments ©2009 119 of 236 DLM 90488-01 Rev. A
5. By default, the Flow Sensor is set to On . To change the Flow Sensor Status, press the Flow
Sensor button and then select On or Off .
Press the Flow Restart button and set it to On or Off . Setting the Flow Restart to On means the
Analyzer will automatically begin analysis again after a temporary stoppage of sample flow, if it
was taking measurements at the time sample flow stopped. If flow stops and power to the Analyzer
is interrupted, the Analyzer automatically attempts to restart analysis when power is restored.
Basic Hardware Operation Issues
Opening the Analyzer Case
The Analyzer case is easy to open to facilitate routine maintenance tasks.
Open the Analyzer front panel by turning the two latches and swinging the panel door to the left;
you will need to use a screwdriver or coin to release the bottom latch. When closing the front panel,
be sure to firmly close both of the latches. In addition, some subsystems inside the Analyzer, such
as the electrical enclosure at the top and the reagent enclosure at the left, are protected by covers.
Remove the covers by loosening the set screws with a Phillips screwdriver. When replacing the
covers, be sure to seat the cover securely and evenly; in particular, if the cover for the electrical
enclosure is not seated evenly, the top door latch may lightly scrape against the enclosure cover.
The Touch Screen
The Analyzer’s touch screen is a quarter-VGA color LCD. The operator’s finger is optimal for
interacting with the display. To avoid scratching the display, do not use pens or pencils to press
buttons.
Note: Every time the Analyzer is placed in On-Line mode, the Flow Sensor automatically
resets to On, to protect the Analyzer.
Warning
Operating the Analyzer in On-Line mode with the Flow Sensor off can result in
erroneous measurements if there is no sample flow.