🔧 Calibrating the Instrument
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Calibrating the Instrument


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FROM 2023 - Our latest machines do not need (regular) wavelength or intensity calibration. Please do not re-calibrate them as it may actually make the performance worse if done incorrectly; contact our support if you are having any issues.


Calibrating your machine ensures that your measurements are accurate.  This document will guide you on how to calibrate the machine using our app.  We recommend calibrating the device every few weeks. 


Step 1 - Connect to your instrument 

Please open the Matoha app and connect to your instrument - see this guide. Your device needs to be connected to a WiFi network as indicated by a WiFi icon at the top left of your device screen. If your device is not connected to a WiFi network, follow this guide.


Step 2 - Entering Calibration mode

Phone/Tablet version

Desktop version



Once connected to your device, you should then see a screen as per the screenshot below. Please press the "instrument calibration" tab. Depending on the Matoha device you have, the device screen may turn white, or stay as normal.



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Ensure that you have removed any samples from the sensor and that the sensor glass cover is clean. Of course, any contamination could negatively affect the calibration! Press Confirm.


Simply follow the on-screen instructions. You will need to click on "Next step" for each step to appear. 



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You should now see the calibration spectrum in the app as shown below. Let the machine take at least 2 measurements, and press "Save" if the spectra look similar to the one shown below and have a consistent shape - if the spectra are noise or not stable, please contact us.




Once you have saved your calibration spectrum, press "Restart Instrument" and you will be directed back to the Matoha app homepage. REMOVE the calibration target, select "Restart instrument", allow your instrument to restart and turn on. It will download the calibration data from the cloud and restart itself.

Once connected to your device, you should then see a screen as per the screenshot below. Please press the "instrument calibration" tab. Depending on the Matoha device you have, the device screen may turn white, or stay as normal.



⚠️

Ensure that you have removed any samples from the sensor and that the sensor glass cover is clean. Of course, any contamination could negatively affect the calibration! Press Confirm.


Simply follow the on-screen instructions. You will need to click on "Next step" for each step to appear. 


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You should now see the calibration spectrum in the app as shown below. Let the machine take at least 2 measurements, and press "Save" if the spectra look similar to the one shown below and have a consistent shape - if the spectra are noise or not stable, please contact us.



Once you have saved your calibration spectrum, press "Restart Instrument" and you will be directed back to the Matoha app homepage. REMOVE the calibration target, select "Restart instrument", allow your instrument to restart and turn on. It will download the calibration data from the cloud and restart itself.


  



Your device is now calibrated and ready for use!