Instruction manual

Instruction Manual PCD 650

does not require any polarizing voltage from your meter. The galvanic probe

design lets you take measurements immediately – without the typical 15

minute wait of other dissolved oxygen probes.

The DO probe comes with an in-built Temperature Compensation for the

membrane variation and consists of two parts. The upper part consists of an

anode, a cathode, and cable, and lower part consists of a membrane cap,

membrane, and electrolyte solution.

Be sure to remove the protective electrode storage bottle or rubber cap of the

pH electrode before calibration or measurement. If the electrode has been

stored dry, wet the electrode in clean water for 10 minutes before calibrating

or taking readings to saturate the pH electrode surface and to minimize drift.

1.5.2 Protective Rubber Boot

The rubber boot protects the meter and gives a good hand grip. It is ideal

when you use the meter in the field. For bench top applications, lift up the

stand at the back of the rubber boot.

Figure 8 : Inserting/removing the rubber boot

1.5.3 Multi Probe Holder

Multi probe holder provides a convenient means to hold pH, conductivity and

DO probes together. Refer ‘Figure 9: Using multi probe holder’ on page 9 to

know how to assemble electrodes (pH, conductivity and DO) into the electrode

holder.

1. Insert pH and Conductivity electrodes one at a time from outside in through the

electrode cover.

2. Clip DO electrode into the holder as shown in Figure 9.