Sampling Data Logger User’s Manual
CO2Meter.com
PAGE
12
of
17
Open
Loop
with
Environmental
Exhaust
Figure
5:
Open
Loop
We recommend installing the included humidity/contaminant filters to ensure the sensing chamber and pump
baffle stays clear and corrosion‐free. Replacements filters are available on CO2meter.com.
Figure
6:
Filter
Installation
and
Orientation
Calibration
All units are factory‐calibrated with multiple reference points of gas, and have been verified to be accurate within
their specific functionality before shipment. However, if the unit is severely jolted or otherwise mechanically
disturbed, the sensor can drift requiring recalibration. All calibration procedures follow a single‐point calibration
routine that effectively shifts the zero‐point of the CO2 sensor.
Supply calibration gas to the unit and connect the unit to a personal computer. Open the calibration screen in the
GasLab
®
software. Click the
CALIBRATE
button in the calibration tab for the desired gas, located in the
CONFIGURE
SENSOR
screen. As long as the gas concentration is stable, the unit should instantly reflect the
calibrated value. This can be confirmed by watching the display. To see the calibration value in real time, click in
the
COLLECT
REAL
‐
TIME
button to capture these values before opening the configuration screen.
Particulate
Filter
