Metrohm 884 Professional VA, Manual - Short Instructions

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1.3 Instrument versions
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884 Professional VA
can be tilted upwards, thus enabling convenient placement of the measur-
ing vessel in the holder.
The measuring instrument uses the potentiostatic three-electrode princi-
ple. This principle means that the potential at the working electrode is
gauged to the predefined setpoint value with the aid of a reference elec-
trode to which no current is applied. The current flows through a separate
auxiliary electrode. The multi-mode electrode pro (MME pro), which com-
bines a dropping mercury electrode (DME/SMDE) and a stationary hanging
mercury drop electrode (HMDE) in a single design, is used as the working
electrode. A rotating disk electrode (RDE) can be used in place of the
MME pro. The following documentation describes both the measuring
head with the MME pro and with the RDE.
The 884 Professional VA instrument can be used both for single determi-
nations and sample series. Various sample processors are suitable for this
measuring instrument. Furthermore, you can automate the addition of
reagents and auxiliary solutions by using dosing devices of the type 800
Dosino.
The 884 Professional VA instrument must be started, operated and con-
trolled via the
viva computer software. The data transfer between the
measuring instrument and the PC takes place via a USB connection. At the
end of every determination, the data (voltammogram, results, etc.) is
saved in a database.
This manual describes the hardware of the 884 Professional VA instrument
(installation, start-up, etc.). Operation using the
viva computer software is
described in the software documentation (online help and VA/CVS tutori-
als). The
Multi-Mode Electrode pro document (8.110.8018XX) describes
how to handle the Multi-Mode Electrode pro (MME pro).
1.3 Instrument versions
The 884 Professional VA instrument is available in the following ver-
sions:
2.884.0010 Professional VA Without measuring head
2.884.0110 Professional VA manual for MME With MME measuring head
2.884.0210 Professional VA manual for CVS With CVS measuring head
2.884.1110 Professional VA semiautomated for
MME With MME measuring head
and 2 Dosinos
2.884.1210 Professional VA semiautomated for
CVS With CVS measuring head
and 2 Dosinos