Concoa 5803007, Инструкция по установке и эксплуатации, Страница: 49 / 60

48
…Sensor adjustment..
O2 20.9%
…Calibrate CO2 sensor to 400 PPM..
O2 20.9%
…Press ENTER to continue..
O2 20.9%
CO2 572
O2 20.9%
6.3 Sensor Calibration, CO
2
CONCOA incorporates the use of an NDIR (Non-Dispersive InfraRed) CO
2
sensor in the Dual
O
2
/CO
2
Monitor. The sensor is factory calibrated and will always provide an accurate reading
that is the difference between a baseline setting and the actual CO
2
measurement. As typical
with most NDIR sensors, long term drift can affect the baseline setting. To compensate for this
drift, an automatic background calibration function is built into the sensor and is enabled by
default from the factory. This calibration feature assumes that during a 24 hour period, the
monitored CO
2
levels return to normal ambient conditions, such as in an office environment or
spaces that are unoccupied during the evening.
If the monitor is constantly exposed to elevated levels of CO2, for example, in an agricultural
growing room, the auto calibration feature should be inhibited, turned off and a manual
calibration preformed approximately every six months. S
ee Section 5.5.11 to turn off the
autocal feature.
CAUTION: DO NOT ADJUST the CO2 sensor unless you are certain that the CO2 level has
returned to normal ambient conditions, such as in an outdoor environment or spaces that are
unoccupied.
To perform a manual adjustment of the CO2 sensor to ambient 400PPM, use the following procedure.
Push joystick to enter the password, then push the joystick to the right and navigate to the Sensor
Adjustment menu. The display will scroll
Push the joystick right once and the display will scroll:
Push the joystick down three times to access the calibrate CO2 sensor to 400PPM menu
The display will scroll:
To manually adjust the baseline setting, expose the monitor to ambient air, either outside or in
a well ventilated room for about 5 minutes. Then push the joystick right to set the new ambient
CO2 ppm level. The display will scroll
press ENTER to continue.
Push the joystick in (like a doorbell) to set the reading to 400PPM. You have now reset the CO
2
sensor to 400PPM. To exit the calibration menu, push the joystick left three times to display the
monitoring mode.
…Set O2 sensor span..
O2 20.9%