The Purpose of Reading the Co2 Value at Time 0 Is:

CO_two Gas Sensor User Transmission

Order Code: CO2-BTA

• Get to Production Page
• Download Manual PDF

The Vernier CO₂ Gas Sensor measures gaseous carbon dioxide levels by monitoring the amount of infrared radiations absorbed past carbon dioxide molecules.

The sensor has 2 ranges: Low (0–10,000 ppm) and High (0–100,000 ppm). Students can use the CO₂ Gas Sensor to measure the change in carbon dioxide levels for a variety of systems, including

• A sleeping room containing small living things such as crickets, worms, or germinating seeds
• A terrarium of plants undergoing respiration and photosynthesis cycles
• A classroom
• An enclosed temper containing sodium hydroxide or potassium hydroxide as CO₂ scavengers
• The chemic reaction between hydrochloric acrid and sodium bicarbonate
• Carbon dioxide gas diffusing through a gas improvidence tube
• Fermentation or respiration of sugars
• Human respiration nether various weather condition (at balance vs. subsequently exercise)

Annotation: Vernier products are designed for educational apply. Our products are not designed nor are they recommended for whatsoever industrial, medical, or commercial process such as life support, patient diagnosis, control of a manufacturing process, or industrial testing of any kind.

What's Included

• CO₂ Gas Sensor
• 250 mL gas sampling bottle (Nalgene canteen with lid)

Uniform Software and Interfaces

Choose a platform below to see its compatibility requirements.

LabQuest

Interface	LabQuest App
LabQuest 3	Total support
LabQuest 2 (discontinued)	Full support
LabQuest (discontinued)	Full support

Computers

	Software
Interface	Graphical Analysis App for Computers Version 5.4	Logger Pro Version iii.sixteen	Logger Lite Version ane.9.4
LabQuest Mini	Full support	Full support	Full support
LabQuest three	Full support	Full support	Incompatible
LabQuest 2 (discontinued)	Full back up	Total support	Full support
LabQuest Stream	Full support 1	Total support	Total support 1
Go!Link	Full support	Total support	Total support
LabQuest (discontinued)	Full back up	Total support	Full back up
LabPro (discontinued)	Incompatible	Total support	Full support

Compatibility Notes

1. Connect LabQuest Stream via USB. Wireless connection is not supported.

Chromebook

iOS

Android

Arduino

LabVIEW

	Software
Interface	NI LabVIEW
SensorDAQ (discontinued)	Full support
Vernier myDAQ Adapter	Total support 1
Go!Link	Full back up
LabQuest Mini	Full support
LabQuest Stream	Full support
LabQuest 3	Total back up
LabQuest 2 (discontinued)	Full back up
LabQuest (discontinued)	Full support

Compatibility Notes

1. You can simply read the raw count/raw voltage output past this sensor. You must do the programming to convert to proper sensor units.

Texas Instruments

	Software
Interface	EasyData Version ii.4/four.0/5.ii	DataMate Version i.fifteen	TI-84 SmartView	DataQuest Version 4.ii	TI-Nspire Software
EasyLink	Full back up 1	Incompatible	Full back up 2	Full support	Total support 2
CBL two	Full back up 3	Total support 3 iv	Incompatible	Incompatible	Incompatible
LabPro (discontinued)	Full support 3	Full support three four	Incompatible	Incompatible	Incompatible
TI-Nspire Lab Cradle (discontinued)	Incompatible	Incompatible	Incompatible	Full support	Full support

Compatibility Notes

1. Employ with TI-84 Plus calculators only.
2. Requires an Piece of cake to Go! adapter
3. CBL two and LabPro interfaces cannot be used with TI-84 Plus CE calculators.
4. DataMate cannot be used with color screen TI-84 Plus calculators; use EasyData with these calculators.

Getting Started

1. Connect the sensor to the interface (LabQuest Mini, LabQuest 2, etc.).
2. Start the appropriate data-drove software (Logger Pro, Logger Lite, LabQuest App) if non already running, and choose New from File bill of fare.

The software will identify the sensor and load a default data-collection setup.

If you are collecting data using a Chromebook™, mobile device such equally iPad^® or Android™ tablet, or a Vernier wireless sensor or interface, delight run across the following link for up-to-date connectedness information:

www.vernier.com/starting time/co2-bta

Using the Production

1. Ready the range switch on the sensor.

2. Connect the sensor following the steps in the Getting Started department of this user manual.

The following includes additional important information about the CO_ii Gas Sensor.

• Let the CO₂ Gas Sensor to warm up for about 90 seconds before collecting information. During warmup, the readings volition be very low.
• The CO_two Gas Sensor is sensitive to high humidity. Practise not use information technology in a condensing environs.
• Most experiments will utilize the Low range (0–10,000 ppm). The High range would exist appropriate when measuring human being respiration as expired air is typically 40,000–60,000 ppm CO₂.
• The CO_two Gas Sensor is somewhat sensitive to temperature changes. In virtually cases, variations in CO₂ readings due to temperature changes are small (<100 ppm on Low range, <1000 ppm on High range). The sensor is designed to operate between 20 and 30°C. It tin can exist used exterior of this temperature range; notwithstanding, the readings volition be less accurate, even if you calibrate the sensor at the lower or higher temperature. With good experimental design, the variation in CO_ii readings due to a temperature change will be negligible compared to the overall alter in CO_two concentration. If an entire experiment is to be conducted at a constant temperature, y'all could improve the accurateness of the readings past calibrating the sensor at that temperature. This does non prohibit taking readings using incubation temperatures or outdoor readings at temperatures warmer or colder than the twenty to xxx°C range. Allow enough fourth dimension for your CO₂ Gas Sensor to stabilize at the desired operating temperatures.
• The CO₂ Gas Sensor refreshes its reading every second, merely typical changes in experiments are and then gradual that the recommended sampling rate is iv seconds per sample or slower. Gas must diffuse through the holes in the sensor tube before the sensor detects whatever changes in concentration. Because improvidence of gases is a slow process, there can exist delays in the readings.
• To collect data in a controlled environs, it is recommended that you apply the 250 mL gas sampling bottle that is included with your sensor.
• To collect information simultaneously with the CO_ii Gas Sensor and O₂ Gas Sensor, it is recommended that you purchase either the BioChamber 250 (250 mL capacity) or the BioChamber 2000 (two L chapters). Each BioChamber has a second opening with a grommet so that you tin insert two probes at one time.
• Considering the sensor operates on the basis of reading IR radiation, y'all should avoid using the sensor in straight sunlight equally much as possible. Even though the IR detector is shielded, information technology is best to avert the possibility of reflected lite affecting the readings by keeping the sensor in the shade when used outdoors.
• Best results are obtained when only one CO_two Gas Sensor is connected to an interface at a time. The electric current draw from two or more CO₂ Gas Sensors connected to the same interface can cause erroneous data.

Videos

Calibration

You lot should not have to perform a new calibration very often when using the CO₂ Gas Sensor. A calibration is stored on the sensor before it is shipped. If you do notice that yous need to calibrate your CO_two Gas Sensor, it can be washed using one known CO₂ level. The scale volition exist based on a sample of exterior air having a carbon dioxide concentration of near 400 ppm. Levels in your expanse may be slightly college due to localized influences such as machine or industrial emissions of carbon dioxide. Note: This calibration method is dissimilar from the usual two-point calibration performed with other Vernier sensors. To calibrate the CO_ii Gas Sensor:

1. Fill the gas sampling canteen (included with the sensor) to the brim with water, take it outside, and dump the water to ensure information technology is filled with fresh air. While still outdoors, insert the sensor into the gas sampling bottle containing fresh outside air. You tin can at present accept the canteen and sensor to the location where the scale is to exist done.
2. Connect the CO_two Gas Sensor to the data-collection interface. Start the data‑collection software and identify your interface, if necessary. Let the sensor warm up for at least 90 seconds.
3. When the CO_two Gas Sensor has warmed upwards (readings should accept stabilized), use a newspaper clip to press downward the scale button. Release the push as shortly as the red calorie-free starts to blink. After virtually 30 seconds, the reading should stabilize at a value of approximately 400 ppm (±100 ppm). If the reading is significantly lower or higher than 400 ppm, but printing the button over again to repeat the process. Note: If the carmine light stays on solid, y'all take held the button too long. In this case, expect for it to go off and printing information technology once again, releasing as soon as it begins to wink.

Specifications

Measurement range of COtwo Gas Sensor	Low range: 0 to ten,000 ppm COtwo Loftier range: 0 to 100,000 ppm COii
Low range typical accurateness (at standard pressure, 1 atm)	0 to ane,000 ppm ±100 ppm 1,000 to x,000 ppm ±10% of reading
High range typical accuracy	0 to ane,000 ppm ±100 ppm i,000 to 100,000 ppm ±twenty% of reading
Response time	95% of full-scale reading in 120 seconds
Warm-up time	90 seconds
Pressure effect	0.19% of reading/mm of Hg from standard pressure
Output signal range	0 to 4.0 V
Input potential	5 V (±0.25 V)
Gas sampling mode	improvidence
Normal operating temperature range	25°C (±five°C)
Operating humidity range	5 to 95% (non-condensing)
Storage temperature range	–twoscore to 65°C
xiii-bit resolution	0 to ten,000 ppm CO2: 1.v ppm 0 to 100,000 ppm CO2: 15 ppm
12-fleck resolution	0 to 10,000 ppm CO2: three ppm 0 to 100,000 ppm CO2: 30 ppm
10-bit resolution	0 to 10,000 ppm COtwo: 12 ppm 0 to 100,000 ppm CO2: 120 ppm
Default calibration values*	Low range (0 to ten,000 ppm) ppm: slope = ii,500, intercept = 20 ppt: slope = 2.five, intercept = 0.02 %: gradient = 0.25, intercept = 0.002 mg/m3: slope = 4,439.5 intercept = 35.516 High range (0 to 100,000 ppm) ppm: slope = 25,000, intercept = 20 ppt: slope = 25, intercept = 0.02 %: slope = 2.5, intercept = 0.002 mg/10003: slope = 44,395 intercept = 35.516

*For units purchased prior to 2007, see world wide web.vernier.com/til/3730

Care and Maintenance

Very important: Do not permit whatsoever liquids to come in contact with the CO_two Gas Sensor. The sensor is intended only for measuring gaseous, not aqueous, CO_ii concentration.

Temperatures greater than 65°C will impairment the sensor.

It is recommended that you lot wash the gas sampling bottles by hand. Most dishwashers will melt the plastic.

How the Sensor Works

The Vernier CO_ii Gas Sensor measures gaseous carbon dioxide levels in the range of 0 to 10,000 ppm (Low range setting) or 0 to 100,000 ppm (High range setting) past monitoring the corporeality of infrared radiation absorbed by carbon dioxide molecules. Carbon dioxide gas moves in and out of the sensor tube by diffusion through the twenty vent holes in the sensor tube. The sensor uses a small-scale incandescent low-cal seedling to generate infrared radiations (IR). The IR source is located at i end of the sensor's shaft. At the other end of the shaft is an infrared sensor that measures how much radiation gets through the sample without being absorbed by the carbon dioxide molecules. The detector measures infrared radiation in the narrow band centered at 4260 nm. The greater the concentration of the arresting gas in the sampling tube, the less radiation will go far from the source through the sensor tube to the IR detector. The detector produces a voltage that is converted to ppm (parts per million) by the software.

Troubleshooting

• If the reported CO₂ gas concentration appears to be incorrect (after the 90 second warm up), calibrate the sensor as described in the Scale section. Go along in mind that indoor CO₂ gas concentration can vary a great deal and that in that location will be unit to unit variability of up to a few hundred parts per million CO₂.
• If the sensor is reading at or almost the maximum value for the set range, the CO_ii concentration may be exceeding the maximum value for the setting. Place the sensor back into exterior air or ambient room air and wait for the readings to subtract.
• If in that location is no alter in CO₂ gas concentration during an experiment when one is expected, it may be your experiment and not the sensor. Exam the sensor by removing it from the reaction sleeping room and gently bravado on the shaft to come across if it responds to your exhalation.

For more than troubleshooting and FAQs, run across www.vernier.com/til/1366

Repair Data

If you accept watched the related production video(s), followed the troubleshooting steps, and are still having trouble with your CO_two Gas Sensor, contact Vernier Technical Support at back up@vernier.com or call 888-837-6437. Support specialists will work with you to determine if the unit of measurement needs to be sent in for repair. At that fourth dimension, a Return Trade Authorisation (RMA) number volition be issued and instructions will exist communicated on how to return the unit of measurement for repair.

Accessories/Replacement Parts

Detail	Order Code
BioChamber 250	BC-250
BioChamber 2000	BC-2000
250 mL Nalgene Bottle w/Lid	CO2-BTL

Warranty

Vernier warrants this sensor to be costless from defects in materials and workmanship for a period of 5 years from the appointment of shipment to the customer (bottle and hat are excluded). This warranty does not embrace damage to the production caused by abuse or improper employ. This warranty covers educational institutions but.

Contact Back up

Fill out our online support grade or telephone call us toll-free at one-888-837-6437.

andersonsuslefor.blogspot.com

Source: https://www.vernier.com/manuals/co2-bta/

Share this post