eutech-instruments waterproof c401 colorimeter User Manual

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Measurement
 
 
C401/301/201/102/101 
 
 
 
8
indicate the last test performed 
5. 
Select the desired test to be performed by pressing the MODE key. 
6. 
Press the READ/ENTER key to confirm your selection. The meter will 
display [STbY] indicating it is ready to accept a measurement or a 
blanking. 
7. 
Press the ZERO key to perform the blanking of the meter. If the user 
chooses to skip this step, the meter will use the last value of the 
blank for the next calculation. 
8. 
Remove the sample vial used for blanking from the instrument and 
add the appropriate reagent to it. Cap the vial and follow the 
appropriate instructions (including the time required to develop the 
color) for each type of reagents. 
9. 
Place the vial with the developed color into the sample well and align 
the ▼ mark on the vial with the ▲ mark on the instrument, and press 
it down until it snaps fully into the optical holder. 
10.  Press the READ/ENTER key. The meter will display the reading in 
appropriate units within 3 seconds. 
11.  To repeat the measurement of the same sample, repeat steps 7-11. 
Ideally, step 7 should not be skipped, but the user may do so if 
testing the same sample.