TechGrow HS-2 Bedienungsanleitung Seite 10

+Wait for 5 minutes until the blinking stops and
the calibration is fi nished and returns to normal
mode.
To stop the calibration, you can deactivate the
HS-2 at any moment.
NOTE: make sure that the batteries are full
during calibration to prevent interruption or
failed calibration.
Problem solving:
-The meter does not activate:
Press "SET" for longer than 3 seconds and
try to reactivate the HS-2. Also, check if the
batteries are placed correctly.
-Slow reaction:
Check if the air way on the back of the meter
are not blocked.
-Errors:
E01: CO2 sensor is damaged.
E02: The value is under range (probably due to
incorrect calibration).
E03: The value is above range.
E07: Too low voltage to measure CO2. Replace
batteries.
E17: Retry calibration.
E31: Temperature sensor is damaged or
defective.
E34: Humidity sensor is damaged or defective.
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