2 titer determination – Metrohm 787 KF Titrino User Manual

Page 14

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2.3. Tutorial

787 KF Titrino

10

2.3.2 Titer determination

Set up your titration vessel, see page 61f and plug your KF electrode into the measuring

input ('KF electr.').

Put a Exchange Unit with KF reagent on the Titrino and rinse the tubing and the buret tip

with <DOS>. Fill the buret again with <STOP/FILL>.

Fill your titration vessel with solvent, put a stirrer bar in the titration vessel and switch on

the stirrer.

For the titer determination you need water and a syringe that allows the exact dispensing

of 30 µL.

Selection of the mode

<MODE>

<ENTER>

• Press <MODE> repeatedly until "TITER with H2O or

std." appears in the display.

• Confirm "TITER with H2O or std." with <ENTER>.

The mode "TITER" is active and instrument is in its

standby state

Briefly check a few settings under the <PARAM> key:

2 × <PARAM>

<ENTER>

<ENTER>

<ENTER>

<ENTER>

• Press <PARAM> twice so that the title "preselec-

tions" appears in the display:

View the individual inquiries of this group with

<ENTER>. The following values should be set:

Automatic drying of the titration cell before and be-

tween titrations: "ON".

Request of the sample identification after the titration

start: "OFF".

Request of the sample size after the titration start:

"ON".

If no printer is attached, the report printout after the

titration must be switched off.

KFT ********

TITER with H2O or Std.

TITER ********

TITER ********

>preselections

TITER ********

conditioning: ON

TITER ********

req.ident: OFF

TITER ********

req.smpl size:

ON

TITER ********

report: OFF

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