Sper Scientific 850046K AquaShock DO Kit - Manual (Page 20)

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Fig. A Fig. B
Fig. C Fig. D
0% Calibration
Note...
The measurement value must read below 10% to calibrate the
meter at 0%. All other keys except POWER ON/OFF and HOLD are
inoperable while performing calibration.
1. Clean the probe thoroughly with deionized water.
2. Press RANGE to select the % saturation scale (see Fig. A).
3. Place the probe into 0 Oxygen Solution.
The solution should have a flow rate of at least 0.3m/s
4. Press CAL for 2 seconds to enter the calibration mode
(see Fig. B)
5. Once the reading is steady the display will read
“Finished” (see Fig. C).
6. Press EXIT to return to Normal Mode (see Fig. D).