Hanna Instruments HI 84529 - Manual (Page 33)

www. hannainst .com 33 Operational Guide
NOTE: DO NOT PLACE THE DISPENSING
TIP INTO THE CALIBRATION BEAKER,
PLACE THE TIP OVER A WASTE BEAKER.
A SMALL AMOUNT OF TITRANT IS
DISPENSED WHEN THE PUMP RESETS.
Press START, wait for the syringe to refill.
Place the stir bar in the beaker and put
the beaker in the minititrator top.
Place the probe holder on the top of the
beaker and secure it by turning clockwise.
Rinse the pH electrode, reference electrode
and temperature probe with deionized
water and immerse them roughly 1.5 cm
(0.6”) into the sample. Be sure that the tip
of the electrode is not hitting the stir bar. If
necessary, additional distilled or deionized
water can be added.
Insert the dosing tip into the titrant tube
sleeve. IT IS CRITICAL THAT THE TIP BE
IMMERSED APPROXIMATELY 0.25 CM (0.1")
INTO THE SOLUTION BEING TITRATED.
Press CONTINUE to begin the calibration
and STOP to abort it. At the end of the
calibration, ”Calibration Completed“
appears on display. To repeat the calibration
press Restart or ESC to return to the main
screen.
Note: If temperature probe is not
connected, Manual Temperature
Compensation is used and MTC appears
on the right side of the screen. If
Automatic Temperature Compensation is
in use the ATC appears on the right side
of the screen.
Pump
Calibration
Procedure