Xylem DO600 Dissolved Oxygen Meter Manual de usuario descargar pdf (Pagina 9)

DO600 - Version 5.0 8/05

Appendices

Troubleshooting Guide

Symptom Possible Causes Action

Unit will not power on -Batteries not in place

-Dead batteries

-Battery polarity incorrect

-Replace Batteries

-Reorient/Replace Batteries

“BAT” indicator shown on display -Batteries are weak -Replace Batteries

Unstable Readings -Insufficient electrolyte in probe (Air

bubbles present when probe is

inverted.)

-Electrolyte is depleted

-Replace electrolyte, and

membrane cap assembly.

Readings drift down -Insufficient stirring (the probe

consumes oxygen at the measuring

surface, requiring constant sample

movement across membrane)

-Move probe in sample or stir

sample

Slow Response -Dirty or damaged membrane -Replace electrolyte and

membrane cap

Electrode cannot be calibrated -Depleted electrolyte

-Dirty or damaged membrane

-Replace electrolyte and

membrane cap

Electrode cannot be calibrated

after replacing the electrolyte and

membrane cap

-Dirty probe (Cathode is not a shiny

gold color)

-Clean cathode with cleaning

paper

Sample reading is frozen -Unit is in “HOLD” mode

-Unit is locked

-Release HOLD (momentarilly

press Mode/Hold button)

-Remove batteries, press

ON/OFF button, replace batteries

and restart

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Xylem DO600 Dissolved Oxygen Meter Manual de usuario Pagina 9