Performing Conductivity Measurement - XS Instruments Revio Manual De Instrucciones

Note: If you are not aware of the exact compensation coefficient, to obtain an accurate calibration
and measurement set in "Temperature compensation factor"  0.00 %/°C and then work by
bringing the solutions exactly 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 MEASURE: The button
•
to appear, 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.

• Performing Conductivity measurement

In measure mode press the button
•
activating the Cond (see paragraph "Operation of the device").
Connect the Conductivity cell to the BNC in the grey measure channel.
•
If the user does not use a cell with a built-in temperature probe or an external one NTC 30KΩ probe,
•
it is recommended to manually update the temperature value (MTC).
Remove the cell from its tube, rinse with distilled water, dab gently taking care not to scratch
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the electrodes.
Dip the sensor in the sample: the measuring cell and any relief holes must be completely immersed.
•
Keep slightly stirred and eliminate any air bubbles that would distort the measurement by gently
•
shaking the sensor.
• Consider the measurement truthful only when the stability icon appears
To eliminate any errors due to user interpretation, it is possible to use the "HOLD" function (see
paragraph Instrument Setup Menu), which allows you to block the measurement as soon as it reached
stability.
• For a highly accurate measurement the instrument uses six different measurement scales and two units
of measurement (µS / cm and mS / cm) depending on the value; the scale change is performed
automatically by the device.
• Once the measurement is finished, wash the cell with distilled water
The Conductivity sensor does not require much maintenance; the main aspect is to make sure
that the cell is clean. The sensor must be rinsed with abundant distilled water after each
analysis; if it has been used with water insoluble samples, before performing this operation,
clean it by immersing it in ethanol or acetone. Never clean it mechanically, this will damage the
electrodes compromising the functionality. For short periods, store the cell in distilled water, while for
long periods, keep it dry.
The ability to have immediate access and manage all information regarding the calibration and the cell
status allows the user to work while maintaining high quality standard.
IMPORTANT: the use of XS Sensor cells is preferred and is the solution recommended by the manufacturer
to obtain highly accurate analyzes. The manufacturer has the possibility to supply sensors with constant 0.1
/ 1 / 10, so that they can be used in various fields of application (pharmaceutical, environmental, industrial,
galvanic, etc.).
UM ReVio EN rev.0 04.06.2020
has been pressed with unstable signal. Wait for the icon
to scroll through the different screens of parameters until
33
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EN