© PCE Instruments
11
16 Dissolved Oxygen Measurement
PCE-WO2 10 pocket dissolved oxygen tester is suitable for measuring the water, wastewater,
brine and other liquids. If the sample is belong to the seawater or other water containing large
amounts of salt, please setting the salinity coefficient before measurement. Some gas and steam
such as chloride, sulfur
dioxide, sulfureted hydrogen, ammonium, carbon dioxide and iodin can permeate the membrane
via diffusion. So their existence will influence the measurement of dissolved oxygen. If the sample
contains the solvent, grease, sulfide and alga, the membrane on the probe will be blocked,
damaged or eroded.
•
Connect the dissolved oxygen probe to tester and wait for 15 minutes to polarize the
probe.
•
If necessary, to set the barometric pressure and salinity coefficient in the setup menu
(Refer to page 5).
•
Immerse the probe in the sample solution, make sure the temperature sensor on the
probe is fully immersed.
•
Stir the probe gently. Record the measured value when the reading is stable.
17 Auto-Hold
PCE-WO2 10 pocket dissolved oxygen tester contains an Auto-Hold function. If enabled, the
tester will automatically sense a stable reading and lock the
measurements. The
icon appears on the display. If disabled, press the
Hold
key, the tester
will immediately lock the displayed value. Press the
Meas
key to resume measuring.
Temperature
sensor
