15
GENERAL TIPS FOR ACCURA
TE MEASUREMENTS
6. Use a water-resistant pencil to mark this position on the thicker white band on top of the cuvette.
Always use this position to align the cuvette with the mark on top of the instrument.
Multiple Matching
For correct multiple matching:
1. Fill some cuvettes with high-quality water (<0.1 FNU) up to the line.
2. Clean and oil the cuvettes.
3. Turn the instrument ON.
4. Insert the first cuvette into the instrument and press READ
.
5. Make a note of cuvette position and read value.
6. Use a water-resistant pencil to mark this position on the thicker white band on top of the cuvette.
1
2
3
1
7. Insert the second cuvette into the instrument and take a reading.
8. Open the lid, slightly rotate the cuvette and take a new reading.
9. Use a water-resistant pencil to mark this position on the thicker white band on top of the cuvette.
2
2
10. Repeat steps (7) and (8) for the second cuvette until the reading is within 0.01 FNU of the value
obtained for the first cuvette.
Alternatively, keep READ
pressed and, after the first value is displayed, open the lid and start
rotating the cuvette until the displayed value matches the value recorded with the first cuvette.
Use a water-resistant pencil to mark this position on the thicker white band on top of the cuvette.
11. Follow steps (7) to (10) for all required cuvettes.