Symptom
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Action
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Will not turn on
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Press and hold the Power button. Charge battery / plug in to USB port.
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Instrument not responding
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Hold down on/off button 10 seconds to turn off then restart.
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Instrument will not switch off
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Remove the USB connection. Hold down on/off button 10 seconds to turn off then restart
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Too much ambient light detected
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Make sure you keep the instrument on the sample until the end of the measurement. Shield the sample to keep light from entering the optics during a measurement on very rough or curved samples. On transparent samples try to prevent light from entering the samples from sides or back. Place sample on a white background.
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Instrument requests a "Recalibrate"
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Recalibrate the instrument using the Calibrate function in the Settings menu.
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"Reference slider not closed!" continually displays after calibrating more than once.
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You will need to perform seven calibration procedures in a row. This will set a new reference point and correct the problem.
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I can’t hear the voice recording
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Increase the volume in the Settings menu. Make sure you hold down the Enter button during recording.
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