Hanna Instruments HI 903 - Manual (Page 33)

2-9
SETUP
Figure 4
Figure 3
Figure 5
2.3.4.2 Attaching the Burette
The 5 mL glass syringe features a highly precise inner diameter, which has been individually
verified to produce consistent titrant dosage according to standard ISO 8655. All of the
non-glass, wetted syringe and valve components, including the shoulders and plunger cap,
are constructed from PTFE to ensure resistance to both degradation due to Karl Fisher titrant
and water vapor permeability.
Make sure that the mark from the valve actuating cap and the burette body are aligned as
shown in Figure 3. Make sure that the valve positioning wheel on the burette pump is
oriented in the proper position as shown in Figure 5.
While ensuring the correct coupling between the syringe plunger (A) and the pump piston
(B) (see Figure 4),
slide the burette into the support on the burette pump (see Figure 5).