Troubleshooting & Faq; Understanding Error Messages - bluelab OnePen User Manual

7.0 Troubleshooting & FAQ

7.1 Understanding Error Messages

Error Reason
The solution being measured is outside of the
"pH UR"
measurable pH range of pH0.0-pH14.0 for the
pH under
OnePen™.
range
"pH OR" Probe has been allowed to dry out or not clean. Follow the cleaning and hydration steps in this guide.
pH over
Probe may be damaged.
range
Calibration solutions maybe contaminated.
"FAIL OFST"
Calibration sequence incorrect.
displayed
when
Probe has been allowed to dry out or not clean. Follow the cleaning and hydration steps in this guide.
calibrating
Glassware has aged or maybe damaged.
pH7
Calibration solutions maybe contaminated.
"FAIL GAIN"
Calibration sequence incorrect.
displayed
Probe has been allowed to dry out or not clean. Follow the cleaning and hydration steps in this guide.
when
calibrating
pH4 or pH10
Glassware has aged or maybe damaged.
"FAIL UNST"
Calibration solutions maybe contaminated.
displayed
Probe still coming up to solution temperature.
when
calibrating
Probe has been allowed to dry out or not clean. Follow the cleaning and hydration steps in this guide.
pH4 or pH10
Glassware has aged or maybe damaged.
"EC UR"
The solution being measured is outside of the
EC under
measurable conductivity range of 0.0EC-10.0EC
range
for the OnePen™.
"EC OR"
The EC electrodes maybe dirty.
EC over
Probe maybe damage.
range
"UR °C/°F"
The solution being measured is outside of the
Temperature
working temperature range 0.0°C – 50.0°C (32°F
under range
– 122°F) for the OnePen™.
"OR °C/°F"
Probe maybe damage.
Temperature
over range
Correction
Dilute the solution to be measured.
Check the probe for damage and replace if
damaged.
Always use fresh calibration solutions.
Always calibrate pH7 first then either pH4 or pH10.
Check the probe for damage and replace if
damaged.
Always use fresh calibration solutions.
Always calibrate pH7 first the either pH4 or pH10.
Check the probe for damage and replace if
damaged.
Always use fresh calibration solutions.
Soak the probe in the calibration solution to allow it
to reach the same temperature as the solution.
Check the probe for damage and replace if
damaged.
Dilute the solution to be measured.
Follow the cleaning steps in this guide.
Check the probe for damage and replace if
damaged.
Dilute the solution to be measured.
Check the probe for damage and replace if
damaged.