wtw TriOxmatic 700IN Operating Manual page 13

Wait at least 15 min for adjustment.
5 Switch the measuring instrument to the % saturation
operating mode. Read the measured value and
determine whether it lies within the range of precision
required by the user.
Note
If the measured value is within the accuracy tolerance
required by the user it is not necessary to clean or
recalibrate the probe.
Example:
Required accuracy: 5 %
Measured value in air: 97 % saturation
Þ no cleaning or recalibrating required
(the measuring error is within the required
accuracy tolerance)
Note:
If the temperature difference between the
measuring solution and the air above the water
surface is too high, an adjusting time of more
than 15 min may be necessary.
Commissioning
13