Manual Cond Calibration; Errors During Calibration - XS Instruments pH 60 VioLab Manuel D'utilisation

Important: Always rinse the cell with distilled water before calibration and when switching from
one standard solution to another to avoid contamination.
Replace standard solutions frequently, especially low Conductivity ones.
Contaminated or expired solutions can affect the accuracy and precision of the measurement.
ATTENTION: Before proceeding with the calibration operations, carefully consult the safety
data sheets of the substances involved:
 Calibration Buffer solutions.
 Manual COND calibration
Example: Calibration at 5.00 µS/cm using a K=0.1 cell constant
Access the Setup menu for COND SETTINGS and select in the P3.1  0.1 and into the program P3.2 

Custom, then go back to the measurement and go into COND mode
 Press the key to enter the calibration mode.
Rinse the cell with distilled water and dab gently with paper towel.

Apply few ml of standard solution and immerse the sensor in the conductivity standard 5.00 µS/cm.
The string "WAIT FOR STABILITY" and the flowing red bands indicate that the measurement is not stable

yet.
 Wait for the Conductivity value on the display to stabilize; when the icon
and to adjust the value by entering that of the standard solution (e.g.: 5.00 µS/cm), as
indicated by the string "ADJUST THE VALUE" and by the icon
 When the icon appears again, confirm the calibration point by pressing the key
 The actual measured value flashes on the display and then it is shown the updated cell constant.
The icon appears, which indicates that the instrument is calibrated in the low conductivity range.

Automatically, the device returns to measure mode.
 For each cell constant (P3.1), the instrument stores the calibration in order to allow the user, who uses
multiple sensors with different constants not to be forced to recalibrate each time.
The instrument recalls the last calibration with respect to parameter P3.1 (cell constant) and P3.2 (type
of calibration solutions) selected.
Note: if you are not aware of the exact compensation coefficient, to obtain a calibration and an
accurate measurement set in P3.4
to the reference temperature. Another method of working without temperature compensation
is to use the appropriate thermal tables shown on the most Conductivity solutions.
Important: Always rinse the cell with distilled water before calibration and when switching from one
standard solution to another to avoid contamination.
Replace standard solutions frequently, especially low Conductivity ones.
Contaminated or expired solutions can affect the accuracy and precision of the measurement.
 Errors during calibration
NOT STABLE: The button

to confirm the first point.
 WRONG BUFFER: The buffer you are using is polluted or not part of the recognized families.
CALIBRATION TOO LONG: The calibration has exceeded the time limit, only the points calibrated up to

that moment will be stored.
UM Serie 60VioLab rev.0 20.05.2020
0.00 %/°C and then work by bringing the solutions exactly

has been pressed with unstable signal. Wait for the icon
27
.
appears, use the keys
.
.
to appear
EN