Instruction manual

5. MEASUREMENT

The READY indicator appears on the display when

the readings stabilize. It will turn off if the readings

start to fluctuate.

NOTE: Be sure to remove the protective rubber

cap of the electrode before measurement.

To take readings:

1. Rinse the probe with deionized or distilled

water before use to remove any impurities

adhering to the probe body. If the pH electrode

has dehydrated, soak it for 30 minutes in tap

water.

2. Switch on the meter. The MEAS annunciator

appears on the top center of the LCD. The

ATC indicator appears in the lower right hand

corner to indicate Automatic Temperature

Compensation. See Figure 21.

3. Dip the probe into the sample.

NOTE: When dipping the probe into the sample,

make sure the tip of the probe is completely

immersed. Stir the probe gently in the sample to

create a homogenous sample. Be sure to tap probe

to remove air bubbles. Air bubbles will cause errors

in the reading.

4. Allow time for the reading to stabilize. Note the

reading on the display. When the reading is

stable, the READY annunciator appears.

5. To toggle between pH and conductivity

readings, press the MODE key. See Figures

22 and 23.

NOTE: Conductivity readings are autoranging and will automatically move to the

correct range (four ranges possible).

MEAS

°C

ATC

ure 21 - Measurement mode

Figure 23 – Conductivity mode

Figure 22 - READY