Schambeck RI 2012, Руководство по эксплуатации

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Schambeck SFD GmbH Refractive Index Detector RI2012
RI2012 V1.0 06-2013.EN / 28.10.2013 51 http://www.schambeck-sfd.com
16.2.4 S
IGNAL
O
UT OF
R
ANGE
The error message of the type “OVER_ADxx” shows up if the analog digital converter gets a
signal which is too high or too low.
To localize the problem the “xx” in the error message is filled with a two letter code
according to the following table
xx=1H sample voltage beyond 5 V
xx=2H reference voltage beyond 5 V
xx=1L sample voltage below 0 V
xx=2L reference voltage below 0 V
The sample voltage corresponds to the light intensity reaching the light sensor on the
sample side, as the reference voltage corresponds to the light intensity reaching the light
sensor on the reference side.
When this error message shows up, try the following to solve the problem:

Purge the flow cell to ensure that both chambers are filled with mobile phase (without
bubbles)

Check the optical balance ( see chapter 16.3 )