21
The raw data can be used to create a graph in Excel. See sample below:
0
5
10
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20
25
30
10:14:13 10:14:15 10:14:17 10:14:19 10:14:21 10:14:23 10:14:26 10:14:28 10:14:30 10:14:32 10:14:34 10:14:36
19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10 19-‐07-‐10
1
2
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Ch3_CO
Co_unit
Ch3_CoT
CoT_unit
Calibration of O
2
Sensor
It is not necessary to calibrate the Humidity, CO or CO
2
probes before use
as they are calibrated during production. In reference to the O
2
probe, it is
recommend to perform a calibration of the O
2
sensor prior to first use and
when not in use for extended periods. Follow steps 1 through 6 if the O
2
appears to be providing false readings.
1. Place the probe in the air and wait a moment until the displayed
readings become stable.
2. Press both the
HOLD
and
REC
buttons simultaneously.
3. Once the display indicates "CAL", release both buttons and the
display will now "O
2
".
4. Press the
ENTER
button and the display should indicate "20.9".
Note
: If it does not display the corrected value of "20.9", press the and
buttons to adjust the displayed value to the standard value of "20.9".
5. Press the
ENTER
button again to confirm and complete the O
2
sensor calibration procedure.
6. At this point, the sensor is now calibrated and should be
reading accurately.
REED Instruments
1-877-849-2127 | [email protected] | www.reedinstruments.com
