What to do if my bluelab Test Equipment has no display?
If there is no display on your bluelab Test Equipment, first ensure that the mains are switched on. If that's not the issue, check that the power adapter is properly plugged into the base of the Guardian Monitor, into the port labeled ‘Power Input’.
What to do if my bluelab Guardian Monitor has no display?
If your Bluelab Measuring Instruments has no display, ensure that the mains are switched on. Also, verify that the power adapter is plugged into the base of the monitor, into the power inlet.
Why is my bluelab Measuring Instruments pH reading inaccurate?
An inaccurate pH reading on your Bluelab Measuring Instruments can stem from several reasons. The probe might be contaminated, in which case you should clean the pH probe. If cleaning doesn't resolve the issue, consider replacing the probe. Ensure you allow sufficient time for the reading to stabilize before calibration. Another cause might be that you are using the factory default calibration or the calibration is old, so you should calibrate the pH probe.
How to fix low nutrient reading on bluelab Guardian Monitor Measuring Instruments?
A low nutrient reading on your Bluelab Measuring Instruments could be due to a contaminated probe, so you should clean the probe. Alternatively, the temperature of the probe and solution might be different. In this case, wait 5-10 minutes for the conductivity / temperature probe to reach the solution temperature.
Why is the temperature reading inaccurate on my bluelab Guardian Monitor Measuring Instruments?
An inaccurate temperature reading on your Bluelab Measuring Instruments may occur if the temperature of the probe differs from the solution temperature. Allow 5-10 minutes for the probe to reach the solution temperature.
Why is the temperature reading inaccurate on my bluelab Test Equipment?
If your bluelab Test Equipment shows a temperature reading that seems inaccurate, it may be because the temperature of the conductivity/temperature probe is different from the solution temperature. Wait 5-10 minutes for the conductivity/temperature probe to reach the solution temperature.
What does it mean when my bluelab Test Equipment conductivity displays ‘or’?
If your bluelab Test Equipment conductivity displays ‘or’, it indicates an over-range conductivity/nutrient level, specifically conductivity >9.9 EC, 99 CF, 1990 ppm. The conductivity/temperature probe or the Guardian Monitor may be faulty.
Why does my bluelab Test Equipment display show _ _ _ _?
If your bluelab Test Equipment shows a row of underscores (_ _ _ _), it means that EC and pH readings can't be determined because the temperature range is over or under the acceptable limits. Test the pH probe in calibration solutions and the conductivity/temperature probe in a known conductivity standard solution to rule them out as the cause. Also, inspect the solution tank/reservoir for any issues.
Why does my bluelab Medical Equipment display ‘or’ for temperature or displays ‘ur’ for temperature?
If your bluelab Medical Equipment displays ‘or’ for temperature or ‘ur’ for temperature, it signifies an over-range or under-range temperature. This means the solution is either >51 °C / 122 °F or
Why does my bluelab Medical Equipment display ‘or’ for pH or displays ‘ur’ for pH?
If your bluelab Medical Equipment displays ‘or’ for pH or ‘ur’ for pH, it indicates an over-range or under-range pH condition. This means the solution is either > 14.0 pH or < 0.0 pH. Check the pH probe connection. The pH probe could be faulty, or the Guardian Monitor could be wet inside.
General| Measurement Parameters | pH, Temperature, Conductivity |
|---|---|
| pH Range | 0.0 to 14.0 |
| pH Accuracy | ±0.1 |
| Temperature Accuracy | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Conductivity Resolution | 0.01 mS/cm |
| Display Type | LCD |
| ATC | Yes |
| Operating Environment | 0 to 50 °C |
| pH Resolution | 0.1 pH |
Detailed steps for mounting the Bluelab Guardian Monitor, including wall or support options.
Guidance on selecting and attaching the appropriate power plug adaptor for your region.
Instructions for connecting the power adaptor and the pH probe to the monitor unit.
Steps to turn on the Bluelab Guardian Monitor and initiate its display test sequence.
Detailed step-by-step guide for calibrating the pH probe using buffer solutions.
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