CleanGrow Sensors | Knowledge Base

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Using the CG200 Auto analyser
In the box: 2 5l containers of calibration solution 1 and 2. The main unit. When you set it up, put the inlet tube for cal 1 into the cal 1 bottle and the same for tube 2. Then plug it in it will boot up with a cleangrow screen. Then if you have a ...
Can I put the probe directly in soil?
No, Ion Selective electrodes can only work in liquid, they are potentiometric and work by measuring the potential difference between the charge built up as a result of free ions in solution against the fixed potential of the reference electrode also ...
How long do the sensors last?
Approximately 12 to 18 months, but it really depends on the care taken, if used for hydroponics or water based samples we have seen these kinds of times and even more, in some cases where the probe has been used as a sort of laboratory service doing ...
Charging the probe
To charge the probe, use the cable supplied via a computer USB port, or a standard phone charger. Charging is controlled to preserve the longevity of the battery so takes a few hours to ideally over night. You can see the charge level of the battery ...
Soil Measurements
Can we use the cleangrow probe to measure soil? Yes, the general protocol used is to extract the free ions in from the soil using a soil to De-Ionised water ration of 1:1 or 1:1.5 or similar, whatever is preferred in your lab. Filtering is preferred ...

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General User Guide
CLEANGROW MULTI-ION BLUETOOTH PROBE QUICK START GUIDE This guide will help you to start using your multi-ion probe. Please read carefully before beginning Bluetooth probe user guide: PRECAUTIONS: The probe is not waterproof. Do not submerge the ...
Disconnecting from Bluetooth
Check that the batteries are charged in the probe. If they haven't been charged or the probe used in a while that might be the issue. Some users report that on first use they have to also go to the bluetooth settings of their phone and connect with ...
What probe type do I have
Sensor Combinations M62 [Ca2+, Cl-, K+, Na+, NH4+, NO3-] M63 [Ca2+, Cl-, Mg2+, Na+, NH4+, NO3-] M64 [Ca2+, Cl-, K+, Mg2+, NH4+, NO3-] M67 [Ca2+, Mg2+, K+, Na+, NH4+, NO3-] M68 [Ca2+, Cl-, K+, Na+, Mg2+, NO3-] NPK2 [Ca2+, K+, Mg2+, NH4+, NO3-, PO43- ...
What are the sensor colour codes
Ca White Cl Blue K Yellow Na Red NH4 Green NO3 Purple MG Black Phosphate Black and Red
Probe bluetooth connection
Sometimes the probe will not connect, this is usually because the batteries need to be above a certain threshold for the bluetooth to kick in Either connect your CleanGrow auxiliary battery pack or recharge your probe for a bit

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