Roche Diagnostics
Instructions for Use · Version 10.0 113
9180 Electrolyte Analyzer 7 Measurement
Correlation factors
Correlation factors
Correlation factors allow you to correlate measurement results from the
9180 Electrolyte Analyzer to other electrolyte analyzers. Activated correlation values
are only considered when measuring whole blood, serum, plasma and QC samples in
standard mode. They are not used for standard samples analyzed in
QC/STD/DIALYSATE/URINE SAMPLE modes. Separate correlation factors for
urine samples are available.
q
If QC samples were switched to report direct ISE values using service code QCC, these
values are not affected by correlation factors.
u Service codes (p. 164).
q
Displayed values are always compared to measurement ranges, QC ranges and reference
values. You may have to adjust the QC ranges and reference values to your correlation
factors.
Correlation factors can be changed in the programming menu. Starting from the
READY screen, press NO until the prompt PROGRAM INSTRUMENT? appears.
Then, press the YES button.
q
For safety and security, the analyzer can only be programmed or have existing parameters
changed by entering the correct password.
The analyzer prompts Enter Code: AAA. The code “KEY” has to be entered as
follows:
o Press NO until the character K appears.
o Press YES and the cursor will advance to the second position.
o Press NO until the character E appears.
o Press YES and the cursor will advance to the last position.
o Press NO until Y appears.
q
If the desired character was missed, keep pressing the NO key until the correct character
appears.
o If the code has been entered correctly, press YES.
o Press NO until Program Corr. Factors? is displayed.
o Press YES, the analyzer prompts Reset Correlat. Factor(Default)?
o Pressing YES deletes all current correlation factors. The analyzer then advances to
the other correlation programming functions. Pressing NO shows the prompt
Input/Verify Corr Factors? and allows you to enter or check the correlation
factors for each parameter. Pressing YES to the prompt
Input/Verify Corr Factors? allows you to change the correlation factors or to
check already programmed correlation factors.
The current values will be displayed, such as:
Na(b) = +00.0
Na(m) = 1.000ok?