ACCESSORIES
37
13. TROUBLESHOOTING
Symptoms
Problem
Solution
Reading fluctuates
up and down (noise)
DO probe electrolyte
contains air bubbles
Remove cap.
Refill, tap and reinstall.
Blinking DO reading Reading is out of
range
Remove cap.
Inspect and clean or
replace if necessary.
Stir or increase flow rate.
Meter fails to
calibrate or gives
faulty readings
Broken probe
Replace the probe.
LCD tags displayed
continuously
at startup
ON/OFF key
is blocked
Check the keyboard.
If error persists, contact
Milwaukee Technical
Service.
“Internal Er X”
Internal hardware
error
Restart the meter.
If error persists, contact
Milwaukee Technical
Service.
14. ACCESSORIES
MA860
DO and temperature probe with DIN connector
MA861
Spare membrane and o-ring for DO probes (5 pcs.)
MA9070
Zero oxygen calibration solution, 230 ml
MA9072S
Oxygen electrolyte solution, 30 ml