YSI IQ S ENSOR N ET VARiON Plus 700 IQ - Manual (Page 42)

Matrix adjustment, check and calibration VARiON
®Plus
700 IQ
4 - 12 ba76000e01 01/2012
Calibration history
(only available in the
IQ S ENSOR N ET
systems 2020 XT)
In the calibration history, a calibration has the entries ES1 and ES2 in
the Ref1 and Ref2 columns which the matrix adjustment has not:
Fig. 4-3 Calibration history (example: VARiON A)
The calibration history contains the following information:
Last electrode
zeroing (here, via
calibration)
Chronological list
with the last matrix
adjustments and
calibrations
Date Date of the calibration or matrix adjustment
S Slope [mV] of the electrode.
Note: After a matrix adjustment, the values for the slope are marked
by a star (*) because they were not changed by this procedure.
DV Drift voltage [mV]
After an electrode zeroing and subsequent calibration or matrix
adjustment, 0 is displayed.
Ref1/Ref2 Depending on the procedure.
Matrix adjustment: Reference concentration [mg/l]
Calibration: Used standard solution
K+ or Cl- Depending on the procedure.
Matrix adjustment: Interfering ions concentration [mg/l]
Calibration: Standard solution, VARiON
®
/ES-2
P Procedure (1 = matrix adjustment, 3 = calibration)
T Temperature [°C]
R Evaluation of the calibration or matrix adjustment
+ : Calibration or matrix adjustment.
The sensor measures with the new calibration or adjustment
data.
? : Calibration or matrix adjustment unsuccessful.
Invalid calibration or adjustment data were discarded.
Measurement is continued with the last valid values.