eutech-instruments ecoscan do 6 do meter Manuel D’Utilisation

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Instruction Manual 
DO 6 
 
 
25
 
5.3 Taking 
Measurements 
During measurement, care must be taken to ensure that the probe’s membrane 
surface does not touch anything. Stir around the solution to prevent any air 
bubbles from being trapped on the 
membrane before taking a reading. 
 
 IMPORTANT: Since the DO probe 
consumes oxygen from the sample, the 
sample must constantly flow past the 
membrane to achieve more accurate 
readings. You can use a stirrer to 
accomplish this.  
5.3.1 
To take measurements:  
1)  Rinse the probe well with DI water or 
rinse solution.  
2)  Select the appropriate measurement 
mode. Press the MODE key to toggle 
between modes:  
a.  Percentage Saturation (%) 
b.  Concentration (mg/L) or (ppm) 
c. Temperature 
(T) 
3)  Dip the probe into the sample. Stir the 
solution gently to homogenize the 
sample. Make sure that the sample is 
continuously flowing past the membrane sensor.  
4)  Take your measurements once your meter reading has stabilized. 
Note: “Ur”/”Or” will be displayed if the instruments exceeds the specified 
measuring range. See Section 12
 
for range specification. 
To select between mg/L and ppm units, see Set Up menu on page 38.  
%
A
mg/l
A
MODE
MODE
TA
Figure 15: Measurement mode