Not Using The Sensor For Long Period Of Time: Over One Month; Oxygen Sensor Calibration; Calibration In Air At 100; Calibration With Standard Zero Oxygen - XS Instruments Revio Manual De Instrucciones

• Not using the sensor for long period of time: over one month

If the instrument and the sensor are not used for a long period of time (over one month), it is recommended
to empty the membrane from the electrolyte and wash the probe accurately. Dry the sensor and screw the
membrane without electrolyte, protecting the sensor with its rubber cap.

• Oxygen sensor calibration

The polarographic sensor is an active sensor which changes its response with wear and aging; therefore,
it is necessary to perform the calibration regularly in air.

• Calibration in air at 100%

The ordinary calibration is performed at 100% in air.
Turn the instrument on, dip the probe in water and wait for the polarization time of 10 minutes.
Later, dry the probe thoroughly with paper towel and proceed as follows:
Place the probe in air with the membrane facing downwards and wait for 2 minutes.
•
• In measure mode OXY %, keep the key
On the display the icon
Keep the sensor in air in a vertical position with the membrane facing downwards.
• When the signal is stable, the stability icon
the calibration in air at 100% by pressing the button
On the display, the measured value flashes, then the calibration report
appears and subsequently the device returns automatically to
measure mode. Below on the left the beaker
indicates that the instrument is calibrated on value 100% O

• Calibration with Standard Zero Oxygen

Normally, it is enough to calibrate the instrument in air at 100%, as explained previously. However,
sometimes it is also necessary to calibrate at 0%, for example when:
A probe is replaced by a new one.
•
• The probe is not used for a long period of time (over one month).
• A complete maintenance of the sensor is performed.
The instrument does not calibrate at 100%, in this case calibrate it before at 0%.
•
• The instrument does not measure correctly.
For calibration at 0%, proceed as follows:
Before proceeding, perform a maintenance of the probe DO 7 (see paragraph "Probe DO7
•
maintenance").
Turn the instrument on, dip the probe in the water and wait for the polarization time of 10 minutes.
•
Then, dry the probe thoroughly with paper towel and proceed as follows:
• Put the probe in the Zero Standard Oxygen and wait for 5 minutes.
Contatct your local distributo in order to buy the Zero Oxygen Standard. Follow the instructions
on the package carefully to reconstitute the solution.
• Access the setup menu OXY
"Calibration point Zero"
The calibration wizard for 0% oxygen is automatically started.
• Gently stir the probe
under the membrane, moving the sensor. Press the button
UM ReVio EN rev.0 04.06.2020
pressed for 3 seconds to enter in calibration mode.
100.0
appears; the device will automatically look for the value %O
appears; confirm
100.0
appears, which
and by pressing the button
in the Zero Oxygen Standard Solution, and eliminate any air bubbles
37
.
.
2
to go on.
= 100 %.
2
select the setting
EN