22
MW605 Dissolved Oxygen & Temperature Portable Meter
Note: If DO is a critical parameter or sample has low DO value,
it is recommended to perform a second calibration point or a
check using a zero calibration DO solution.
Zero Calibration
Continue after confirming the 100% calibration point.
If no previous 100% calibration has been performed, press
CAL/EDIT. Use
keys to select the 0% point.
1. Pour
MA9070
Zero oxygen solution into a small beaker.
2. Submerse the membrane cap and temperature sensor into
the beaker and stir gently for 2-3 minutes.
When the reading is stable and within the limits, LCD displays
“STD” with ACCEPT tag (blinking).
3. Press GLP/ACCEPT to confirm.
If this is the second calibration point, LCD displays “SAVING”,
stores the calibration and returns to Measurement mode.
If no previous 100% calibration exists, LCD displays “100.0%”
calibration point and “WAIT” (blinking). Continue with the
second point or pres CAL/EDIT to save.
Note: Rinse probe tip in water before measurements in samples.
Clear Calibration
1. Press CAL/EDIT to enter Calibration mode.
2. Press LOG/CLEAR.
LCD displays “CLEAR CALIBRATION“ with ACCEPT tag (blinking).
3. Press GLP/ACCEPT to confirm.
LCD displays “PLEASE WAIT“ followed by “NO CAL”.
