Xylem SI Analytics TitroLine 7500 KF trace Manual De Instrucciones página 98

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Please put the other end of the PTFE tube that touches the bottom of the titration vessel ("tube 1"), through the
opening on the cap of the clear square bottle (-> waste bottle). Put the other PTFE tube ("tube 2") through the
opening of the cap of the brown reagent bottle. Adjust the dosage and the disposal tubes as depicted in Fig. 14.
Then seize the screwing with the tubes on the bottles.
Fig. 14
Put the indicator electrode KF 1150 and the generator electrode (TZ 1752 or TZ 1753) into the provided openings
NS 7,5 and NS 19 and the electrode cables into the colour-coded socket. The indicator electrode has a fixed
cable with 2 blue plugs. The cable LB 04 NN has a green and black plug and is connected to the provided port of
the generator electrode.
The keyboard is connected to one of the USB-A ports.
Place the power supply easily accessible in order to be able to remove the titrator anytime easily from the
power circuit.
Fill the KF anolyte into the brown 1 l reagent bottle. You can also connect the GL 45 adaptor directly to the
anolyte bottle (recommended) if it has a GL-45 -thread.
Fill the TZ 1505 glass drying tube with glass wool, then molecular sieve and then again with glass wool. Plug the
drying tube onto the generator electrode.
Working with the titration stand
2.6.1

Dosage: Pump the anolyte into the titration vessel by pressing the front part of the rocker switch. As long
as you press the button the dosing process proceeds.

Siphon off: Siphon off the solution from the titration vessel by pressing the back part of the rocker switch.
As long as you press the button it will be siphoned off.
Please always check the fill level of the waste bottle before operating the pump. Before you siphon off
the titrating solution please make sure that the disposal bottle can absorb this amount of solution.
The built-in magnetic stirrer stirs the liquids in the titration vessel. You can adjust the stirring speed at the turning
knob at the right upper side of the titration stand or magnetic stirrer.
Troubles
2.6.2
Problems might occur if the tubes are not connected properly or the pressure / low pressure system has a
leakage. Then, after a few seconds operating time of the pump, no reagents will be conveyed anymore. When
checking the tubes please observe that the bottle screwing and all adaptors are leak-proof. The same applies to
the tube connections of the drying bottle.
Buckled tubes cause incorrect dosages and also the siphon off process does not work properly.
Please check the tubes and their connections for leak-tightness on a regular basis. Replace if necessary