Why does my bluelab Medical Equipment conductivity display ‘or’?
If your bluelab Medical Equipment's conductivity display shows ‘or’, it indicates an over-range conductivity/nutrient condition. This means the conductivity is >9.9 EC, 99 CF, 1990 ppm. The conductivity/temperature probe or the Guardian Monitor might be faulty.
What to do if bluelab Measuring Instruments display shows ERR during calibration?
If your Bluelab Measuring Instruments display shows 'ERR' during calibration, it could be due to several reasons: 1. You may have attempted to calibrate with pH 4.0 or pH 10.0 calibration solution more than one hour after calibrating with the pH 7.0 solution. To resolve this, calibrate to pH 7.0 again, then perform the pH 4.0 / pH 10.0 calibration within one hour. 2. The calibration solutions might be old or contaminated, so use fresh calibration solutions. 3. The probe could be dirty or contaminated, so clean the probe. 4. The pH probe tip may have been allowed to dry, so hydrate the pH probe. 5. The probe might be damaged or old, so replace the pH probe.
Why does my bluelab Medical Equipment temperature reading inaccurate?
An inaccurate temperature reading on your bluelab Medical Equipment may occur if the temperature of the conductivity/temperature probe differs from the solution temperature. Allow 5-10 minutes for the probe to reach the solution temperature.
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.
Why does my bluelab Medical Equipment show a low nutrient reading?
A low nutrient reading on your bluelab Medical Equipment may be due to a contaminated conductivity/temperature probe (clean it) or a temperature difference between the conductivity/temperature probe and the solution (wait 5-10 minutes for the probe to reach the solution temperature).
What to do if my bluelab Medical Equipment has no display?
If your bluelab Medical Equipment has no display, ensure that the mains are switched on. Also, 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 Medical Equipment pH reading is inaccurate?
An inaccurate pH reading on your bluelab Medical Equipment can be caused by several factors. The pH probe or glassware may be contaminated (clean the pH probe, then calibrate), you might be using the factory default calibration (calibrate the pH probe), the calibration may be old (calibrate the pH probe), the glass bulb, tube, or connector could be broken (check the pH probe for damage), or the pH probe may be damaged or old (replace the pH probe).
Why does my bluelab Medical Equipment display ‘Err’ during calibration?
The 'Err' message during calibration of your bluelab Medical Equipment may appear due to several reasons: attempting to calibrate with pH 4.0 or pH 10.0 solution more than one hour after using the pH 7.0 solution (in this case, calibrate to pH 7.0 again, then do pH 4.0 / pH 10.0 calibration within one hour), using old or contaminated calibration solutions (use fresh calibration solutions), dirty or contaminated pH probe (clean the pH probe), pH probe tip been allowed to dry (hydrate pH probe), or a damaged or old pH probe (replace it).
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.
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.
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.
To Next Page
