YSI 2900 - Page 35

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23. Touch a chemistry to show details
24. Listed in table 6-1 below are the recommended FCN limits.
a. Values less or equal to FCN limits indicate integral membranes
b. Values greater than FCN limits indicate membrane structural failure
c. If readings are high, recalibrate and repeat all the steps above to confirm.
d. If the reading is still out of tolerance, refer to the Troubleshooting Section.
Chemistry
Membrane
Calibration Standard
FCN Limit
2
Choline 2771 2772 0.02 g/L
Ethanol
2786
2790 (2.00 g/L)
0.05 g/L
Ethanol-HC
7150
7151 (25.0 g/L)
0.10 g/L
Glucose
2365
2776 or 2747
0.05 g/L
L-Glutamate
2754
2755
0.06 g/L
L-Glutamine
2735
2736
0.06 g/L
L-Lactate
2329
2776
0.03 g/L
Methanol
2725
2726 (1.00 g/L)
0.05 g/L
Sucrose
2703
2780
0.10 g/L
Xylose
2761
2767
0.05 g/L
Table 6-1
2
If you are using units other than g/L for the FCN test, refer to 16 Appendix B – Concentration Unit Conversion for conversion values.
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