Manual Conductivity Calibration - Giorgio Bormac 8+ Série Manuel D'utilisation

Rinse the sensor with distilled water
•
absorbent paper. Flush with some mL of standard solution.
Press and immerse the sensor in 1413 µS/cm standard
•
solutions keeping it slightly in moving and making sure there are
no air bubbles in the cell. In the becker all the Conductivity
values flow that the device is able to recognize.
• When the value on the becker stabilizes on 1413 value and the
icon appears confirm by pressing
• The display flashes the value actually measured, subsequently
the calibration report is displayed showing the cell constant for
each range and finally the device automatically returns to
measurement mode. The icon becker relative to the calibrated
point appears on the bottom left of display
• One point calibration is sufficient if the measurements are
performed within the measurement range. For example, the
standard solution 1413 µS/cm is suitable for measurements
between approx 200 - 2000 µS/cm.
• To perform a multipoint calibration, once back in measuring
repeat all calibration step. The becker icon related to the new
calibrated point will be next to the previous one. It is advisable
to start the calibration from the less concentrated standard
solution and then continue in order of increasing concentration.
• When a new calibration of a previously calibrated point is carried
out, it is overwritten on the old one and the cell constant is
updated.
For each cell constant (P2.2) the device memorises the
•
calibration, in order to allow the user who uses multiple sensors
with different constants to not be forced to recalibrate each
time.
• The instrument recalls the last calibration relative to the
parameters P2.2 (cell constant) and P2.3 (type of calibration
solutions) selected.
Important: Standard conductivity solutions are more vulnerable to contamination, dilution and
direct influence of CO compared to pH buffers, which instead thanks to their buffer capacity tend
2
to be more resistant. Furthermore, a slight temperature change, if not adequately compensated,
can have significant effects on accuracy. Pay particular attention in the process of calibration of the
conductivity cell and then be able to obtain accurate measurements.
Important: To avoid contamination, always rinse the cell with distilled water before calibration
and when switching from one standard solution to another to avoid contamination.
Replace the standard solutions frequently, especially those with low conductivity.
Contaminated or expired solutions may 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:
• Standard solution for calibration.
The careful reading of the safety data sheets of the solutions used favors the elimination
of residual risks related to skin, contact, ingestion, inhalation or eye contact that can
generate possible but not probable minor damages. Contact your local distributor for more information.

• Manual conductivity calibration

Example for 5.00 µS/cm calibration with 0.1 cell constant sensor
Access Cond/TDS setup menu and set in P2.2  0.1 and P2.3  User, press
•
measurement mode and switch on Cond mode.
UM Serie 880 EN rev.2 30.07.2020
and gently dab with
key.
1413
.
Cell C=1
26
key to return in
EN