YSI 910 COD Colorimeter - Manual (Page 7)

7
englIsH
Measurement
Fix the adapter for 16 mm vials on the sample chamber.
Turn the unit on using the [ON/OFF] key.
The display shows the following:
Select the required test using the [MODE] key.
scroll Memory (sM)
To avoid unnecessary scrolling for the required test range, the instrument
memorizes the last range
used before being turned off. When the instrument is
turned on again, the scroll list comes up with the last used test range.
The display shows the following:
Place the blank in the adapter (Note 1–4) making sure that the
marks are aligned.
Blanks are specially prepared for each individual test range.
Press the [ZERO/TEST] key.
The “Range“ symbol flashes for approx. 8 seconds.
The display shows the following:
After zeroing remove the vial from the adapter.
Place the sample in the adapter (Note 2–4) making sure that the
marks are aligned.
Press the [ZERO/TEST] key.
The “Range“ symbol flashes for approx. 3 seconds.
the result appears in the display.
lr-/Mr-range: in mg/l
Hr-range: in g/l
the result is saved automatically.
Tolerance: ± 3.5 % (full scale)
repeating the test:
Press the [ZERO/TEST] key again.
new zero calibration:
Press the [ZERO/TEST] key for 2 seconds.
RANGE
RANGE
On
Off
Zero
Test
Mode
RANGE
0.0.0
RESULT
RANGE
Zero
Test
Zero
Test
Zero
Test