NIEUWKOOP GT1050, Руководство пользователя

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CGT1050
–
GT1060
CO
2
/TEMP/RH METER
_____________________________________________________________________________________________
CO
2
CALIBRATION
The meter defaults to be calibrated manually in the ambient air where CO
2
concentration is around 400ppm.
CAUTION:
Do not calibrate the meter in the air with unknown CO
2
concentration. Otherwise, it will be
calibrated as 400ppm by default and leads to inaccurate measurements.
It is suggested to calibrate the CO
2
sensor in fresh outdoor air that is well ventilated and better
in sunny weather. Do not calibrate the meter in places crowded with people or close to where
with high CO
2
concentration such as ventilating outlets or fireplaces.
Place the meter in the calibration site. Turn on the meter and hold down and simultaneously
to enter CO
2
calibration mode (Fig.14). 400ppm and “CAL” are blinking on the LCD while
performing calibration.
Wait about 10 minutes until the blinking stops and the calibration is completed automatically
and back to normal mode. To abort the calibration, turn off the meter at any time.
NOTE:
Ensure the batteries are with full voltage during the calibration to prevent from interruption or
failed calibration.
RH CALIBRATION (GT1060 RH)
The meter defaults to be calibrated the humidity with 33% and 75% salt solution. The ambient
condition is recommended to be at 25 C and stable humidity (better to be close to the
calibrating value). To abort calibration, just turn off the meter.
CAUTION:
Do not calibrate the humidity without the default calibration salt. Otherwise, it will cause
permanent damage. Contact the dealer for calibration salt or services.