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Metrohm 763 PVC Thermomat Manual User Manual

Page 79

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4 Operation

763 PVC Thermomat

72

The following parameters for Block A or Block B can be altered live:

Stop criteria

Time

Time up to automatic termination of the deter-

mination.

Range:

0.1...100 h

Conductivity

Conductivity limit value. When this value is

reached the determination is automatically ter-

minated.

Range:

1...400

µµS/cm

Endpoint(s)

Automatic termination of the determination

when each active channel has reached all end-

points

.

Shut off at end of determinations

Heater

Automatically switches off the heating at the

end of the determination.

Gas flow

Automatically switches off the gas flow at the

end of the determination.

If the gas flow is automatically switched off,

the reaction vessels must be removed

from the PVC Thermomat within 1 h after the

end of the determination. If the reaction

vessels are not removed, a vacuum is gener-

ated in the course of the time by condensa-

tion of the further produced HCl in condensed

water vapor from the measuring vessel and

the measuring solution is siphoned back into

the hot reaction vessel.

Stop determinations

Determinations are normally terminated automatically when the stop

criteria defined in the method have been achieved. Running determina-

tions can also be stopped manually be clicking on the following buttons

in the operating area of the

763 PVC THERMOMAT CONTROL

window:

Stops a single determination for the corresponding
channel.
Stops a double determination for channels 1 and 2.

Stops a double determination for channels 3 and 4.

Stops a multiple determination for channels 1 to 4.

If a determination is stopped manually an inquiry

Do you want to save this

determination?

appears. With

No

neither measuring data will be saved

nor will results be automatically outputted.