Hanna-instruments HI 903 Instrukcja Użytkownika Pobierz pdf (Strona 35)

2-11

SETUP

Figure 7

• Place beaker ring (C) onto beaker support with the notches on top (see Figure 6).

•

Insert the glass beaker (B) into the beaker ring (C).

• Add the stir bar to the glass beaker (B).

• Carefully place the beaker top onto the beaker (B). Secure in place by pushing the

beaker top through the beaker ring (C) with the 4 notches of the beaker ring aligned

with the 4 steel pins of the beaker top (A).

• Twist the beaker ring (C) counter-clockwise to lock the top in place.

2.3.4.3.1

Beaker top

Warning: Do not over-tighten fittings! This may cause permanent damage to o-rings!

To assemble the 5 parts of the beaker top, see Figure 7 and follow the steps below:

Anti-Diffusion Dispensing Tip

The HI903 ships with the dispensing tip (A) and o-ring (B) installed. For initial setup, go to

third step:

• Push dispensing tip (A) through the dispensing tip o-ring (B) until the o-ring is at

the lip of the dispensing tip.

• Insert tip through the proper port. Orient the tip so that the angled portion is

directed toward the center of the assembly.

• Fasten the dispensing tubing from the burette assembly to the dispensing tip port

using the dispensing tip fitting (C). Ensure that the tip remains oriented toward the

center of the beaker.

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Hanna-instruments HI 903 Instrukcja Użytkownika Strona 35