Turbidity Calibration; Setting The Number Of Calibration Points; Calibrating The Meter - LABBOX Metria M10 Manual De Instrucciones

• To prevent the errors from ambient light interference, do not use the meter in direct sunlight. Always close the light shield
lid during the. measurement and calibration.
• The vial and cap must be cleaned thoroughly with deionised water after each measurement. Any residues can cause
inaccurate readings.

Turbidity Calibration

• The METRIA M10 portable turbidity meter is calibrated with Formazin Standards at the factory and does not require user
calibration prior to use.
• Do not shake or agitate the calibration standard violently to prevent air bubbles.
• In order to get accurate measuring results, we recommend calibrating the meter at least once a month.
• The meter allows turbidity calibration up to 5 points with minimum of 2 points, the default calibration points include the
0.02, 10.00, 200, 500 and 1000 NTU. For better accuracy, ensure that selecting a calibration point close to the sample value you
are measuring.

Setting the number of calibration points

1. Press and hold the
2. Press the Enter key, the display shows
Press the ◄ / ► key to select the number of calibration points, press the Enter key to confirm.
3.

Calibrating the meter

1. Press the Cal key to enter the calibration mode, the display shows
select a
desired calibration point.
2. Take out the corresponding calibration standard from carrying case. Wipe the vial with a lint-free cloth to remove
fingerprints.
3. Hold the vial cap and gently inverting vial several times. Ensure that the calibration standard is homogeneous and no air
bubbles.
Mark
key for 3 seconds to enter the setup menu, the display shows
/ (2 points calibration).

3 sec.
Arrow
/ .
. If necessary, press the ◄ / ► key to
NTU/