YSI Pro-BOD - Manual (Page 12)

10
Symptoms Actions
Unstable readings
•
Allow sufficient time for temperature and
oxygen stabilization
•
Allow 60 sec for reading to stabilize
•
Change membrane
•
Clean probe (see instructions under Electrode
Cleaning)
Motor not
working
•
Check power supply
•
Manually turn the stir paddle to help start the
motor
•
Replace motor
Loud motor
•
Check if stir paddle is pushed all the way in
•
Replace motor
Membrane cap is
tight
•
Use pliers to loosen the cap (turn counter
clockwise while facing sensor tip)