1 titration sequence – Metrohm 756 KF Coulometer User Manual

Page 39

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3.6 Parameters, key <PARAM>

756/831 KF Coulometer, Instructions of Use

31

3.6.1 Titration sequence

After the start, the activate pulse is outputted and the stir-

rer switched on.

The start delay time is allowed to elapse.

The solution is titrated until the EP is reached. The display

then shows

KFC wait

and the "COND" indicator blinks.

If the EP has been reached, the display shows

KFC ready

drift <=> 2.4 ug/min

The indicator "COND" is ON. The vessel is now condi-

tioned. The titration can be started with <START>.

The sample identifications and the sample size are re-

quested. Without any of these requests, the display shows

for 6s

add sample

This waiting time of 6 s can be aborted with <QUIT>.

The pause is waited off.

The titration is carried out. If the extraction time has not

expired when the endpoint has been reached, the titration

will only be terminated when the extraction time has

elapsed.

Calculations are carried out.

Data are outputted.

Conditioning is carried out.

(Activate pulse)

(Stirrer ON)

<START>

(Start delay)

(Pause)

(Request ident.)

(Request smpl size)

(Extraction time)

Titration with test of

stop criterion

Calculations

Data output

Reconditioning

(Preconditioning)

(<START>

(Activate pulse)

(Start delay)

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