Metrohm 807 Dosing Unit - Manual (Page 9)

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1 Introduction
807 Dosing Unit
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1 Introduction
1.1 Instrument description
The 807 Dosing Unit is a versatile buret unit which can be operated with a
700 Dosino or 800 Dosino dosing drive. The 807 Dosing Unit is suitable
for precise dosings, titrations, pipetting procedures, sample transfers, etc.
The four inputs and outputs (ports) are designed for flexible use (presum-
ing the presence of a suitable control device).
Thanks to the transparent housing of the 807 Dosing Unit, piston move-
ments and stopcock rotations are visible. This means that even complex
liquid handling applications are easy to monitor. The unobstructed view
into the dosing cylinder also ensures that solutions can be monitored with
respect to the absence of bubbles and the leak-tightness of the cylinder
unit.
Specifications concerning the dosing unit and the reagent can be stored in
the integrated data chip. This data can be extracted and updated by a
suitable control device.
1.2 Model versions
The 807 Dosing Unit is available with cylinder sizes of 2 mL, 5 mL, 10 mL,
20 mL and 50 mL. In addition to glass cylinders, plastic cylinders (ETFE)
specially manufactured for alkali and other aggressive solutions are also
available.
Table 1 807 Dosing Unit with glass cylinder
Volume Order number
2 mL 6.3032.120
5 mL 6.3032.150
10 mL 6.3032.210
20 mL 6.3032.220
50 mL 6.3032.250
Table 2 807 Dosing Unit with ETFE cylinder
Volume Order number
2 mL 6.1575.120