Waltron 9072, User Manual

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Waltron User Manual 101-054-A.1
9072 Hydrazine Analyzer
INTRODUCTION
1.2 DESCRIPTION OF DEVICE
The Waltron 9072 Hydrazine Analyzer measures reliably and quickly the hydrazine
concentration in aqueous media from the trace areas (<10.0 µg/l) up to concentrations of
higher than 1000 µg/l under normal conditions.
The Waltron 9072 Hydrazine Analyzer can be divided into two primary function parts.
The first is the electronic component which consists of the display and input elements as
well as the measuring data collection and data processing elements.
The second is the analytical component which is composed of the inlet valve, filter
device and flow meter which serve the sample and probe preparation. The measuring cell
is joined with the temperature sensor and the reference cell with its reference electrode.
For the measurement of the hydrazine (N
2
H
4
), the sample flows through the components of
the device which relate to the sample and probe preparation and through the calibration cell
into the coaxial measurement cell (grooved measurement cell), passing by the gold
measuring electrode. If the measuring electrode has the characteristic potential for the
hydrazine oxidation in the boundary layer (interphase) between the electrode surface and
medium, the measurement reaction takes place.
Waltron 9072 Hydrazine Analyzer