Sper Scientific 850046K AquaShock DO Kit - Manual (Page 21)

21
Calibrate dissolved oxygen in mg/L (ppm) mode
Note...
mg/L (ppm) calibration can only be performed after 100% calibration
has been completed.
1. Clean the probe thoroughly with deionized water.
2. Put the probe into a sample where the oxygen content
is known. The solution should have a flow rate of at
least 0.3m/s.
3. Press RANGE to select the mg/L(ppm) scale (see Fig. A).
4. Press CAL to enter calibration mode and begin calibration.
The measurement value will flash (see Fig. B).
5. Press ↑ to increase the Measurement Value.
Hold down ↑ to continually increase the value.
Press ↓ to reduce the Measurement Value.
Hold down ↓ to continually reduce the value.
The Measurement Value range is 0.00 ~ 19.99mg/L.
6. Press SETUP to save the calibration value and exit to
Normal Mode (see Fig. C).
7. Press EXIT to return to Normal Mode without saving.
Fig. A Fig. B
Fig. C