bluelab pH Controller Wi-Fi User Manual

7.0 Troubleshooting & FAQ
7.1 Troubleshooting guide
Trouble Reason Correction
pH reading
inaccurate
pH probe not plugged in. Connect pH probe. Check pH probe connection.
Using factory default calibration. Calibrate pH probe.
Contaminated pH probe / glassware not clean. Clean pH probe, then calibrate.
Broken glass bulb, tube or connector. Replace pH probe.
pH
probe
damaged
or
old.
Replace
pH
probe.
Bad grounding (noisy/jumpy pH readings). Earthlink required. Attach temperature probe. Go to
Menu, turn Earthlink on.
Display shows
‘Failed <e>’
during
calibration
Old
or
contaminated
solutions
used
to
calibrat
e
.
Use
fresh calibration solutions.
Dirty or
contaminated pH
probe.
Clean
pH
probe.
pH
probe
tip
been
allowed
to
dry.
Hydrate
pH
probe.
pH probe damaged or old. Replace pH probe.
No display
Mains not switched on. Switch mains power on.
Power adaptor not plugged in. Plug power adaptor into the power socket marked
‘PWR’.
Mains
on, power adaptor plugged
in.
Replace
power
adaptor.
No display
after initial
LCD test
Backlight set to minimum.
Increase Backlight setting in MENU, or hold <cal>
button down while applying power, to restore
Factory Defaults.
pH displays
‘or’, ‘ur’, ‘-.-‘
‘or’ Over range pH.
‘ur’ Under range pH.
Check pH probe connection. pH probe could be
faulty. Clean pH probe, then calibrate.
‘-.-’ Temperature over/under range.
Solution <0°C / 32°F or >51°C / 122°F. Check solution
temperature. Ensure temperature probe plug is fully
inserted.
Temperature
displays
‘or’, ‘ur’, ‘- -‘
‘or’ Over range temperature.
‘ur’ Under range temperature.
‘- -’ Temperature probe not connected.
Solution >51 °C / 122 °F.
Solution <0 °C / 32 °F.
Ensure temperature probe plug is fully inserted.
Temperature probe is faulty, replace.
pH
symbols
flashing
It has been more than a month since last
c
alibration.
Clean pH probe, then calibrate.
‘HELP’
flashing
[Ineffective
control
detected]
Dosing solution container empty. Refill dosing solution container.
Dose direction setting incorrect for your system. Ensure setting reflects dosing solution in use. i.e. For
Acid select Down.
Dose
on/off
times incorrect.
See
section
2.5.5
for
setting
Dose
On/Off
times.
Output
from
tube
not
dripping
into
solution.
Ensure
tube
output drips
into
tank.
Solution is not mixing. Ensure pH correction solution is mixed in tank.
pH probe not seeing pH changes, after dosing Ensure pH probe is in solution with adequate mixing.

bluelab pH Controller Wi-Fi Specifications

General

Brand	bluelab
Model	pH Controller Wi-Fi
Category	Controller
Language	English