GE Analytical Instruments ©2010 128 of 226 DLM 74001-04 Rev. A
Chapter 6: Calibration and System Protocols
6. Do one of the following:
• If you have a purchased vial set, insert the Suitability standards cartridge into the Super iOS System
with the label facing away from the Analyzer and press Next.
• If you have purchased individual vials rather than a vial set in a cartridge, confirm the value shown
on the Conductivity Standard label. Next, make sure the vials are inserted into the iOS System vial
ports in the following order:
Port 1 = RW Reagent Water Control
Port 2 = Rs Standard Solution
Port 3 = Rss System Suitability Solution
Port 4=Rinse Water
Press the Next button, and then press the No Set button. Go to step 10.
7. If you have a standard iOS System:
• Open the door to the iOS System and wait 30 seconds for water to drain.
• Insert the Reagent Water (Rw) into the iOS System and press Next.
• When prompted, remove the Reagent Water (Rw) from the iOS System, insert the 500 ppb Sucrose
Standard (Rs), and press Next.
• When prompted, remove the 500 ppb Sucrose Standard (Rs) from the iOS System, insert the 500 ppb
Benzoquinone Standard (Rss), and press Next.
• When prompted, remove the 500 ppb Benzoquinone Standard (Rss) from the iOS System, insert the
Rinse Water standard, and press Next.
•Press the Print button if you want to print the Calibration results.
8. After the last standard has been analyzed, the System Suitability summary screen is displayed (see
Figure 31). The Analyzer indicates if the system suitability passed or failed based on the following
criteria:
Acceptance criteria for USP System Suitability is response efficiency between 85% and 115%.
Response efficiency is calculated as follows:
Response Limit is calculated as follows:
Response Limit = Rs - Rw
9. Click the Apply button if you want the new data to be saved as the Analyzer’s response limit.
If you accept the Response Limit, this new value determines when to trigger the Analyzer’s Response
Limit alarm, when activated (see “Setting Alarm Values” on page 83). Press the Yes button to confirm
that you want to accept the new value.
10. Press the Exit.
RE =
(Rss - Rw)
(Rs-Rw)
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