PUMP CALIBRATION PROCEDURE
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8. PUMP CALIBRATION PROCEDURE
Warning:
The calibration of the pump must be performed each time the pump tube,
the reagent bottle or the pH electrode is changed. It is recommended to perform the
pump calibration before each set of measurements.
y
Using a clean pipette, fill the 100 mL beaker up to the 50 mL mark with
MI555-001
Standard.
Note:
Failure to use clean pipettes will result in erroneus readings.
MI555-001
Standard
50 mL
y
Place the stir bar in the beaker and put the beaker in the minititrator top.
y
Fill the 20 mL beaker up to the 5 mL mark with the
MI555-005
Acid Reagent and add
the content to the 100 mL beaker.
MI555-005
Acid Reagent
y
Place the beaker into the beaker holder.
y
Place the probe holder on the top of the beaker and secure by turning clockwise.
y
Open refill cap on the ORP electrode and immerse the electrode approximately 2 cm
(0.8”) into the sample to be tested. Do not touch stir bar with the tip of the electrode.
y
Ensure there is titrant in the dosing tip. If not, hold the dosing tip over an empty
container and press
PUMP
for a few seconds until the titrant is in the dosing tip.
