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Metrohm 799 GPT Titrino User Manual

Page 71

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2.6 Parameters, key

799 GPT Titrino

67

Sequence with DOC

After the start, the activate pulse is output and the stirrer

switched on.

The start delay time is waited off.

The sample identifications and the sample size are re-

quested.

The start volume is dispensed (without controlling or

measured value acquisition and there is no monitoring

during this time) and the pause is waited off.

Once the start conditions have been met, measured val-

ues (time, volume) are acquired and stored in the measur-

ing point list. If monitoring of measured values and/or

temperature is active, these values will also be stored in

the measuring point list. If limits are violated it will be

marked in the measuring point list.

If a T sensor is connected, the temperature is measured

continuously (in intervals of 2 s). In pH titrations, the pH

will be corrected as a function of temperature.

Without T sensor the values are measured without inter-

rupt by T measurements. The manually set temperature is

then valid.

The determination is terminated when the end of the

measured value ramp is reached, i.e. after the sweep

time. If measured value monitoring is active, the current

measured value also must have reached the end of the

ramp.

The stirrer is switched off.

Calculations are carried out.

Data are output. The measuring point list is the base for

curves.

(Activate pulse)

(Stirrer ON)

(Start delay)

(Start conditions)

(Request ident.)

(Request smpl size)

Controlling

Acquisition of meas.

(Monitoring)

Termination

Calculations

(Stirrer OFF)

Data output