EC500 V2.3 3/08

5

8888

Conductivity

TDS

Salinity

PH

L

M

H

pH

(ppm)

(mg/l)

mgL

Measurement Procedure

Sample Preparation:

1.

For Conductivity, TDS or Salinity place the test sample in

a sample cup with enough depth (2.5cm minimum) to

cover the electrode. Stir the solution to remove any air

bubbles.

2.

For pH, place the tip of the electrode in the sample or

make contact with a wet surface.

Measurement:

1.

Press the ON button. (

and then “SELF CAL” will

appear in the display during the turn-on diagnostics)

2.

Depress and hold the MODE/HOLD key to scroll to the desired

measurement mode.

3.

Insert the electrode into the sample making sure that the

electrodes are completely submersed.

4.

Slowly stir the solution with the electrode to remove air bubbles

if in the Conductivity, TDS or Salinity mode.

5.

If in the Conductivity, TDS or Salinity modes, the meter will

auto-range to the proper range and then display the reading.

EC500