Measurement of FeNO in exhaled breath
2.3
Measurement failed
en
Measurement failed when
• the exhalation through the device was excessively weak or strong.
• the measurement was not performed within 60 seconds after completed regeneration process.
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© Bosch Healthcare Solutions GmbH
Display shows exhalation failed, the LED flashs red and an audio signal occurs.
The regeneration process must be repeated for a new measurement trial:
1. If the clock icon is blinking, the device is busy. Wait until the blinking stops.
2. Press the ENTER button.
3. When the device is ready to measure, perform steps 3 to 7 of the procedure, see chapter
"2.2 Performing the measurement".
Instructions for use