eutech-instruments waterproof c401 colorimeter Manuel D’Utilisation

Page de 44
Measurement
 
 
C401/301/201/102/101 
 
 
 
7
2.2 
Preparation of Sample Vial 
1. 
 Obtain a clean and dry sample vial (Figure 6). 
2. 
Take care to handle the sample vial by the top. 
3.   Rinse the vial with approximately 10 ml of the sample 
water, capping the vial with the black screw cap and gently 
inverting it several times. Discard the used sample and 
repeat the rinsing procedure two more times. 
4. 
Fill the rinsed vial with the remaining portion (approximately 
10 ml) of the grab sample up to the mark indicated in the 
vial. Cap the vial with the supplied black screw cap. 
5. 
Wipe the vial with a soft, lint-free cloth. Ensure that the outside of the 
vial is dry, clean and free from smudges. 
6. 
You are now ready to place the vial into the meter for measurement. 
2.3 
Measurement Procedure 
1. Place 
C401/301/202/102/101Colorimeter on a flat and level surface.  
2. 
Place the sample vial inside the sample well and align the vial’s mark 
with the meter’s index mark. See  Figure 8. 
Align index mark on 
the sample vial with 
the index mark on 
the colorimeter and 
push till it is fully 
snapped in
IMPORTANT:
Place meter on a flat 
and level surface. 
DO NOT hold it on 
hands while operating 
the meter. It may lead to 
inaccurate readings
 
Figure 8: Sample vial index alignment to the meter's index mark 
3. 
Push the vial until it is fully snapped in.  
4.  Turn on the meter by pressing the ON/OFF key. The display will 
Figure 6: 
Sample Vial