Metrohm 763 PVC Thermomat Manual - Manual (Page 29)

3 Operating tutorial
763 PVC Thermomat
22
3.1.3 Carrying out determinations
When the preparations are complete the determinations can be started.
Proceed as follows:
1 Wait until the temperature has been reached
⇒ Wait until the heating block reaches the temperature defined
in the method. This condition is indicated by temperature dis-
play 99 "TEMPERATURE" which stops blinking and remains
lit up. At the same time or after a slight delay the frame color
of the button turns green.
2 Insert reaction vessels
⇒ Place the prepared reaction vessels 11 in the heating block
openings on the 763 PVC Thermomat. Close any openings
which are not used with stoppers or empty reactions vessels
to protect against contamination.
⇒ Connect the white connecting tubing 33 fastened to the reac-
tion vessel cover 22 to the corresponding connection 22 22 on
the measuring vessel cover 55.
⇒ Screw the brown gas supply tubing 66 onto the connection
nipple 30 30 of the reaction vessel cover 22 and the correspond-
ing connection 19 19 on the 763 PVC Thermomat (see Fig. 3).
3 Start determination
⇒ In the operating field of the control window for every determi-
nation you want to start you must click on the button
.
After the start of a determination the live curve of the started
determination is shown in the operating window beside the
channel number. The actual measured value appears above
the curve.
As soon as a point of inflection is found during the measure-
ment the determination is terminated. The window with the
live curve becomes gray again and the message finished ap-
pears.