VIO 7 Vio, Instruction Manual

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21
Rev. 1 20.12.2019
EN
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At the end of the second calibration point, the instrument automatically returns to measuring mode.
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To perform a one-point calibration just press the key after finishing the first point.
Note: If you are working with manual temperature compensation (MTC), update the value before calibrating
the instrument

Performing a pH measurement

In measurement mode, press the key and move to the pH parameter indicated by the icon .

Connect the electrode to the instrument's pH / ORP BNC (green).

If the user does not use an electrode with a built-in temperature probe or an external probe, NTC 30KΩ,
it is advisable to manually adjust the temperature value (MTC).

Remove the electrode from its tube, rinse with distilled water and dab gently with absorbent paper.

Check the presence and eliminate any air bubbles present in the membrane bulb by stirring vertically
(as for the clinical thermometer). If present, open the side cap.

Dip the electrode in the sample while keeping stirred.

Scroll on the display with four red bands means that the measurement is not yet stable.

Consider the measurement truthful only when the stability icon appears .
Example of an unstable measurement Example of stable measurement

After the measurement, wash the electrode with distilled water and preserve it in the appropriate
storage solution.

Never store the sensors in ANY TYPE OF water OR DRY!

Always have on the display the indication of the buffers used for calibration and the possibility of being
able to consult, at any time, the calibration data or to be able to enter the expiration date are useful
tools for obtaining accurate measurements.

DHS Electrodes

The electrodes equipped with DHS technology can save a calibration curve within their memory. The
calibrated sensor is automatically recognized by any instrument enabled for DHS recognition and
acquires its calibration.

Connect the DHS electrode to the BNC and RCA connectors of the instrument.

The device automatically recognizes the probe and the following screens scroll on the display:

first screen: sensor identification name and production batch;