How to calibrate the Bluelab Pulse Meter with Edenic [+ video]

Create custom reference points for moisture levels

Note: Video references Pulse app but steps are still valid for Edenic

As growing medium ages, it compacts and changes. That's why we recommend calibrating your Pulse Meter to the moisture levels of your specific growing medium. This way, you'll get more reliable measurements for your crops.

Bluelab uses maximum water holding capacity (WHC) to set reference points. WHC is typically found by watering a plant until it starts draining then letting it freely drain for an hour.

Read more about maximum water holding capacity.

Calibrate your Pulse to moisture levels in two steps:

Prepare your plants to their maximum water holding capacity
Calibrate your Pulse Meter and app

Note: Calibration only affects the moisture measurement, and will not influence conductivity (EC).

1. Prepare your plants

Before you calibrate, you'll need to saturate your plants to the maximum water holding capacity.

Select a good representative sample of all your plants. Choose plants that are of similar age and condition. This has to be a minimum of 2 plants, but can be up to 5 plants.
Make sure your plants can free drain, then fill the plants with water until they are saturated.
Let the pots free drain for at least 1 hour. You are now ready to calibrate your Pulse Meter to maximum water capacity.

Tip: To know when your plants have reached saturation, watch for the water starting to rest on the surface of your pot.

2. Calibrate your Pulse meter and app

Once your plants have been saturated to maximum water holding capacity, you're now ready to configure the measurements.

Open the Edenic app on your phone, select your device, ensure it on and connects.
Select the settings cog to navigate to device setting
Once there select Manage Calibrations.
On the MC Calibration screen select the green "+" button to get started
Select next on the info screen to move onto Calibration Details, enter a name and select the appropriate base substrate.
Follow the prompts in the app to take measurements by pressing the button on the Pulse Meter from each sample at the depth you will normally be measuring. When you have taken enough measurements, the app will prompt you to tap Next to check the calibration.
Measure each plant a couple of times to get a green or orange success window every time.

Note: A red "poor" notification means the measurements aren't close enough to your original measurements you took when first creating the calibration. If you continually get a red poor measurement screen, consider restarting the calibration process by clicking "Restart calibration".

8. Once you are happy with the calibration, you can either send the calibration to Pulse to configure it or save the calibration. The calibration will also now be available as a selectable substrate in settings. Just select custom as the substrate and choose your desired calibration from the custom calibration dropdown.