Carbon Dioxide Sensor
xs
for the LogIT Microsense
®
system
Instructions &
Resources
Overview
The Carbon Dioxide sensor is designed to measure the amount of Carbon Dioxide gas
present in air. It provides measurements in ppm (Parts Per Million).
It uses NDIR (Non Dispersive Infrared Absorbance) to measure the CO
2
molecules
present in the air.
Ideas for use
• Environmental monitoring of CO
2
levels.
• Greenhouse CO
2
monitoring.
• Plant growth and measurements of optimum growing conditions.
• Photosynthesis studies.
• Human breath composition.
• Office/Classroom/Home environmental studying.
Specifications
Range:
0 - 10000 ppm (resolution 1 ppm)
Accuracy:
+/- 0.02% volume CO
2
+/- 3% of reading
Update rate:
Every 2 seconds
Operating Conditions:
0
O
C to 50
O
C (32
O
F to 122
O
F)
0 to 85% RH, non condensing
Storage conditions:
-40
O
C to 70
O
C (-40
O
F to 158
O
F)
Power:
USB 4.5 - 5.25V
30mA average 300mA peak
Life expectancy:
15 years nominal commercial environments
Care
This sensor is not waterproof. Do not use the sensor in excessive damp conditions or
extremes of temperature as permanent damage will result.
Do not disassemble this sensor, no user serviceable parts inside.
Trouble shooting
• If no sensor is found in the software, check the power supply is within operating power
range (see above)
• Your software and/or LogIT (with a display) may need updating to support it, which is
available over the internet free of charge.
If the sensor is not recognised by your software or LogIT (for example if the data logger
displays ???) you probably need a firmware/software update.
SensorLab or LogIT Lab will update the LogIT data logger - if you are using different
data logging software you can download an evaluation version of SensorLab to update
your LogIT(s) by performing steps 1 & 2:
1: Visit the LogIT website www.logitworld.com If you have software, go to step 3.
2: To upgrade your data logging software click on the ‘Support’ tab followed by ‘Software
Downloads & Updates’. Download and install SensorLab.
3: To upgrade the data logger, start the logging software (SensorLab or LogIT Lab) and
Select ‘Administration’ under the ‘File’ option.
4: Select ‘Reload loggers System’ and the upgrade should proceed.
Note the Carbon Dioxide sensor is not compatible with the CheckIT display for LogIT SL/
LIVE.
• Basic recalibration can be done by the user - see ‘Recalibration’ on the following page.
The resources shown overleaf are available in PDF form at www.logitworld.com
