EUTECH INSTRUMENTS WP PCD 650 Manual de Instruções descarregar pdf (Página 15)

Instruction Manual PCD 650

1.5 Connecting Peripherals

1.5.1 Probes (pH/Conductivity/DO)

Attach the probes with correct type of connectors as indicated in the figure

below.

Figure 6 : Connecting ph, Cond and DO Probes

The PCD 650 meters allows to connect a pH or ISE,

DO and a conductivity probe at the same time. Two

types of conductivity electrodes: the 2-cell

conductivity cell and the 4-cell conductivity cell can

be used with this meter and only one can be

connected at a time. The meter can also adjust cell

constant from 0.010 to 10.000. This electrode

features a built-in temperature sensor for Automatic

temperature compensation (ATC). It has a specially

designed housing that provides fast temperature response

and reduces air bubble entrapment, which makes it easy to

obtain accurate, stable readings.

Proper use of electrode is essential to ensure that the optimum measurement

is taken in a short time. The removable protective plastic electrode guard on

the conductivity cell is meant for simple periodic maintenance and it must be

kept in tact during measurement and calibration. Always immerse the

electrode beyond upper steel band as shown in Figure 7. We recommend

that you do not submerge the electrode above the protective yellow cap. You

can submerge the cable for brief periods of time, but not continuously.

This meter uses a special notched 6-pin connector to attach the DO probe to

the meter. The Dissolved Oxygen Probe works on galvanic principle, that is, it

pH Probe (BNC)

Conductivity Probe

with built in

temperature sensor

(8-pin Connector)

Figure 7: Probe

immersion level

DO Probe with

built in temperature

sensor (6-pin

Connector)

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EUTECH INSTRUMENTS WP PCD 650 Manual de Instruções Página 15