EUTECH INSTRUMENTS ALPHA CON 1000 CONDUCTIVITY CONTROLLERTRANSMITTER (REVISION 3) Manual de usuario descargar pdf (Pagina 12)

Incorporating the superior Galvanic oxygen

probe, operating the alpha DO 2000 controller

is immediate.

With the Galvanic probe, there is no start-up or

‘warm-up’ time. The probe only takes 40 to 50

seconds to attain 95% of actual readings.

Unlike Clark cells where the probe needs to be

polarised to 700 ~ 800 mV, in the Galvanic probe,

the anode and cathode already carry a

electrochemical potential of 800 mV.

Calibration is quick and easy using the

atmospheric air as the calibration media for

100% air saturation.

Zero drift is avoided as H

2

O is recreated within

the probe, thus preventing any change to the

pH of the electrolyte. Thus, the electrolye is

recycled within the probe and extends the useful

life.

Rugged Galvanic probe for process applications

requires minimal maintenance. Frequency

between membrane and electrolyte changes is

significantly lower than traditional Clark cell

systems.

View measured values in mg/l or % air saturation,

selectable from the menu-options.

Barometric pressure, Salinity and Temperature

compensation is very important for Dissolved

Oxygen (D.O.) measurements. A Pt 100 sensor

is incorporated in the D.O. probe, allowing

for continuous automatic temperature

compensation. Input Barometric pressure

and Salinity compensation into the controller

and all D.O. measurements will be correctly

compensated.

Alpha DO 2000 Dissolved Oxygen

αα

αα

αlpha DO 2000

Controller/Transmitter

8

Galvanic probe (construction)

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