Check Standards - GE Sievers InnovOx Operation And Maintenance Manual

Chapter 6: Analyzer Operation
11. Press the Analog Out Setup button to configure the 4-20 mA analog output for Stream 1. The Analog
Output Stream 1 screen appears with the following options:
• Range Max (ppm) and Range Min (ppm) buttons — Set the maximum and minimum concentrations
(in ppm) that will cause currents of 20 mA and 4 mA to be output, respectively.
• Error Level, Warning Level, and Standby Level buttons — Set the current to be output when the
Analyzer detects an Error, Warning, and when it is in Standby (that is not measuring sample
streams). For these three states, you can select from 0, 1, 2.5, 4, or 20 mA. The Warning Level also
includes a Disable option, and the Standby Level includes an additional option to Hold Last.
N :
If a Warning is generated during operation, and if a new measurement is available, it will output the
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measured value for 30 seconds and then return to outputting the Warning signal. However, if Disable is
selected for the Warning output, all warnings will be ignored on the 4-20 output.
12. Press the Conversion Factor button to apply a configurable factor to the final result. You can configure
up to two unit factors with unique alphanumeric units by clicking on Maintenance tab
Factor. For further information, refer to Conversion Factors section on p. 122.
13. Press the Calibration button to specify which calibration should be used in this protocol.
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You can ONLY select calibrations for the appropriate analysis mode and range (specified previously
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using the Range button). If you selected the Auto Range option, you can specify the Calibration Group
to use with the protocol. For more information, see "Calibration Groups" on page 98.
14. Press the Presets button to select from pre-configured Online measurements. The presets are
suggested configurations, based on experience with specific sample types. The preset configurations
may be modified, as needed for your specific application. Press the Back button to return to the stream
(such as Stream 1) screen.
15. After you have configured this stream, press the Back button to return to the Configure Online screen,
and then configure any other streams you want to monitor.
16. Continue to the next section to define the setup for the check standard.

Check Standards

Check standard measurements provide a way of checking that the Analyzer is operating properly and that its
calibration has not changed. The Analyzer can make measurements of this check standard—a solution of known
concentration— as part of a scheduled Online operation or as a separate, manually-started analysis. Use the
Check Standard button to manually initiate measurements of the check standard. For information on setting up
scheduled online operations of the check standard, see "Check Standards" on page 118.
N :
Any changes made to the Check Standard Measurement (Manual Start) are also applied to the
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Check Standard Measurement (Scheduled). See page 118.
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