Barometric Pressure Compensation; Probe Ldo70 Maintenance; Replacement Of Luminophore; Data Logger Function - VIO OXY 70 Manuel D'utilisation

• Barometric pressure compensation

Since the measurement of the partial pressure of the dissolved oxygen is related to the barometric pressure,
this instrument is able to compensate each variation, thanks to the integrated barometric sensor.
In order to view the barometric pressure measured by the instrument, press the key
measurement and scroll through the measurement parameters: %O

Probe LDO70 maintenance

If the instrument does not calibrate or the reading does not stabilize, it is necessary to perform a
maintenance of the probe in the following way:
1) Check that the luminophore is clean, in case wash it with water.
2) The luminophore must be intact, undamaged, and without holes.
3) Unscrew the luminophore and check that the inside is dry, free from condensation and infiltration. If
there is condensation or infiltration, check the integrity of the O-ring seal of the luminophore and, if
necessary, replace it. Dry thoroughly with a paper towel and screw the luminophore ensuring an
airtight seal.
After the maintenance, make a new Calibration in air at 100%.
Note: if even after maintenance the probe does not calibrate, then replace the luminophore with a new one.

• Replacement of luminophore

The efficiency of the luminophore decreases with wear to the point that the instrument is no longer able to
calibrate itself, in this case it is necessary to replace it. To replace the luminophore proceed as follows:
1) Unscrew the luminophore;
2) Check the integrity of the inside of the probe;
3) Replace the o-ring with a new one supplied with a new luminophore;
4) Screw the new luminophore ensuring an airtight seal.
After the maintenance make a new Calibration of the oxygen sensor.

Data Logger Function

This series of devices has the possibility of recording values in GLP format on the instrument's internal
memory.
• The instrument can save up to 1000 data in total. Once the memory is finished, the values are NOT
overwritten. In measure mode, the number of data stored for that parameter appears next to the M+
icon.
It is possible to recall and consult the values on the display or download them to a PC using the
•
appropriate software.
• If you have the possibility to work directly connected to the PC, the data are automatically saved on
the software without having memory limitations.
Recordings can be acquired manually (MANUAL) or automatically at preset frequencies (HOURS -
•
MINUTES).
PC Connection : connect the USB cable inside each package to the USB port on the top panel of the
instrument and the other end to a COM port on the computer.
Use the USB cable supplied with the instrument only.

• Setup for Data Logger parameter

• In measure mode press button
Use the directional keys to move to LOG SETTINGS P8.0 and access the menu by pressing the key
•
.
UM Serie Oxy70Vio EN rev.0 28.05.2020
↔ mg/l ↔ mbar.
2
to access the SETUP menu.
18
EN
during