14
MW190
Bench Meter
y
When the reading is stable, “READY” & “ACCEPT” tags start blinking. Press ACCEPT to
confirm the “0.0%” D.O. calibration.
y
If the reading is within the limits (±15% f.s.), the meter stores the value (and adjusts
the zero point).
y
Press CAL. The instrument will return to measurement mode and will memorize the
zero calibration data. For a two-point calibration do not press CAL and follow the
procedure below.
SLOPE CALIBRATION
It is suggested to perform the slope calibration in air.
y
Rinse the probe in clean water to remove any residual zero oxygen solution.
Note: If you did not perform the zero calibration procedure, press CAL and then the
ARROW keys to select the 100% D. O. calibration point.
y
Dry the probe tip and allow a few seconds for the LCD reading to stabilize. The “WAIT”
tag will blink until the reading is stable.