Calibration Range; Errors During Calibration; Dissolved Oxygen Measurement; Before Starting - XS Instruments Revio Manual De Instrucciones

• On the display, the beaker
Oxygen Standard; when the measure is table, the icon
pressing the button
• The actual measured value flashes on the display, then the
calibration report is shown and finally the instrument
automatically returns to measure mode.
0.0
The beaker icon appears at the bottom left, indicating that the
instrument is calibrated on value 0 % dissolved oxygen.
After the calibration of the point Zero using the Zero Oxygen
Standard Solution, perform the calibration in air at 100% too. This
procedure remains saved, even after the turning off of the device
ATTENTION: Before proceeding with the calibration operations, carefully consult the safety data sheets of
the substances involved:
• Zero oxygen Standard calibration solution.
Note: The Zero Oxygen Standard Solution is SINGLE DOSE! After its use, contact your
local distributor for the purchase.

• Calibration range

The time range between two calibrations (100% in air) depends on the type of the sample, the efficiency of
the electrode and the researched accuracy; usually, it is necessary to calibrate the instrument at least once
a week, but for a better accuracy, it is recommended to calibrate it more often.
The instrument must be recalibrated, if occurs one of the following conditions:
• New probe, or probe not used for a long time
• After the sensor maintenance.

• Errors during calibration

NOT STABLE MEASURE: The button
•
to appear to confirm the point.
CALIBRATION TOO LONG: The calibration exceeded the time limit: only the points calibrated up to that
•
moment will be kept.

Dissolved oxygen measurement

• Before starting

In order to reduce measurement errors and get the greatest possible accuracy, observe the following rules
before starting:
• The sensor must be calibrated;
• The sensor must be placed in a vertical position with the membrane downwards;
Remove the protective cap;
•
• The sensor must be at the same temperature of the sample to analyse; if necessary, leave the probe
immersed in the sample until the reaching of thermal equilibrium.

• Measure mode

The instrument can work in two different measure modes:
Dissolved O saturation expressed in %
•
2
Dissolved O saturation
2
Measure range
Risolution
UM ReVio EN rev.0 04.06.2020
0.0
: appears it indicates that the instrument is searching for the Zero
.
was pressed with still unstable signal. Wait for the icon
38
appears; confirm the calibration by
0,0...400,0 %
0,1 %
EN