Accessories - BRAND Dispensette S Mode D'emploi

Accessories

The following optional original accessories are available for the bottle-
top dispenser Dispensette
Flexible discharge tube
For serial dispensing, except for HF, the flexible discharge tube can
be used ('Accessories', page 45). The specified accuracy and coef-
ficient of variation of the instrument are only obtained for volumes
> 2 ml and by gently approaching the upper and lower stops.
The coil of the tubing can be stretched to a length of the 800 mm
max. Before use ensure, that the entire coil lies in regular loops and
is not twisted.
Assembly
1.
If the Dispensette
strument must be cleaned before mounting the flexible discharge
tube (page 45).
2.
Instruments with a recirculating valve should be set to 'Recircu-
late', and the valve lever pulled upwards to remove it.
3.
Slide the discharge tube housing all the way up. Then pull dis-
charge tube forward with gentle up and down motions (Fig. 1).
4.
Push the flexible discharge tube holder from the bottom of the
valve block (Fig. 2) and tighten it. For this, Dispensette
Analysis must not be mounted on the bottle. Install the receiver
tube.
5.
Press the cock plug of the recirculation valve downwards.
6.
Slide the flexible discharge tube housing into the valve block up
to the stop (Fig. 3).
7.
Slide the discharge tube housing all the way down (Fig. 4).
8.
Attach the valve lever that fits the discharge valve and press it in
firmly. Note the color coding and marking.
Note:
Always follow the instructions for valve marking on page 32!
Use a bottle stand ('Accessories', page 45).
Warning:
The flexible discharge tubing must not be used with HF (hydrofluoric
acid).
There should be no visible damage to the discharge tube (e.g. kinks
or the like). Each time you are going to use the tubing, examine it
carefully! To dispense aggressive liquids, you should take safety
measures in addition to the normal precautions. We recommend use
of a protective shield. The bottle must be supported using a bottle
stand. To help avoid reagent splashing from the tube, always grip the
tube firmly by the handle and replace into the holder after use. For
cleaning rinse the tube carefully. Do not dismantle!
36
S Trace Analysis:
®
S Trace Analysis was already in use, the in-
®
1
2
S Trace
®
3
4