Metrohm 895 Professional PVC Thermomat - Manual (Page 20)

3.2 Mounting accessories
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12 ￭￭￭￭￭￭￭￭
895 Professional PVC Thermomat
13 Label field
For attaching labels (e.g. 6.2250.000 lami-
nated labels).
14 Connector plug
15 Measuring vessel cover (6.0913.130)
Contains an integrated conductivity measur-
ing cell.
16 PTFE cannula (6.1819.080)
For supplying the nitrogen to the measuring
solution.
17 Electrode 18 Protection ring
19 Measuring vessel (6.1428.107)
Proceed as follows to mount the measuring vessel and the reaction vessel:
1 Mounting the measuring vessel cover
￭ Screw the PTFE cannula from above into the In opening of the
measuring vessel cover.
￭ Screw the M8/olive tubing adapter into the In opening of the
measuring vessel cover.
￭ Pour 50 - 80 mL of deionized water into the measuring vessel (the
exact quantity depends on the application).
￭ Place the measuring vessel cover onto the measuring vessel.
2 Mounting the reaction vessel cover
￭ Place the O-ring (6.1454.040) over the upper end of the air tube.
￭ Feed the air tube (6.2418.xx0) into the connector of the reaction
vessel cover (6.2753.107) from above.
￭ Gently screw the M8/M6 thread adapter into the connector while
pressing the air tube against the thread adapter from below. Then
fix the air tube onto the reaction vessel cover by firmly tightening
the thread adapter.
￭ Blow out the reaction vessel with nitrogen to free it from foreign
substances (e.g. dust or cardboard shreds).
￭ Before putting the cover in place, briefly rotate the upper part of
the reaction vessel in your hand. This slightly lubricates the glass
and facilitates removal of the covers after the measurement.
￭ Place the reaction vessel cover on the reaction vessel.
NOTE
The air tube must be in a vertical position in the reaction vessel.