AIMS™ CO2 Flowmeter

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Compliance made easy for CO2 Euthanasia

Calibrated to accurately deliver CO2 to ANY Chamber.

Small profile with an easy to set Flow-Rate and 3-way ball valve for quick chamber fill when needed.

Barb fitting for connecting to 5/16" or 1/4" ID hose. Wall-mount option.

Flowmeter with AIMS CO2 Chamber
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Example Calculations for 20% Chamber Vol/min
Large Rat Cage
19” x 10” x 8” = 1520 in3.
1520 in3 x 0.20 = 304 in3 (flow rate wanted 304 in3/min).
304 in3/min divided by 61.024 = 4.98 l/min AIMS CO2 flowmeter setting.

AIMS CO2 Chamber (cylinder)
π x Radius2 x Height
3.14 x 4”2 x 7” = 352 in3.
352 in3 x 0.20 = 70 in3 (flow rate wanted 70 in3/min).
70 in3/min divided by 61.024 = 1.15 l/min AIMS CO2 flowmeter setting.

Tubing w/Coupler Kit
1/4" to 1/4" ID - 2ea
1/4" to 5/16" ID - 2ea
5/16" to 5/16" ID - 2ea
5/16" to 3/8" ID - 2ea
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Low Pressure CO2 Regulator

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CO2 Flowmeter shown with wall-mount option

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Which CO2 Flowmeter to use? Calculate the total volume of your chamber in cubic inches (in3). Your chamber volume should fall between the min and max of the selected CO2 flowmeter for the selected Chamber Displacement Rate (CDR).

CO2 Flowmeter Model/Range Chamber Volume (in3) CDR 10% CDR 20% CDR 30%
XL900 max 15,156 7,500

5,040
3.0  -  25 l/min min 1,838 925 612
 
LC500 max 6,120 3,022 2,012
1.0  -  10 l/min min 598 290 210
 
SC100 max 3,060 1,537 1,001
0.5 -  5.0 l/min min 315 150 96

AVMA Guidelines for CO2 Euthanasia
General recommendations—Carbon dioxide is acceptable......using a gradual fill method is less likely to cause pain due to nociceptor activation by carbonic acid prior to onset of unconsciousness; a displacement rate from 10% to 30% of the chamber volume/min is recommended......... The practice of immersion, where conscious animals are placed directly into a container prefilled with 100% CO2, is unacceptable. From AVMA Guidelines for the Euthanasia of Animals:2013 Edition.

AIMS™ Catalog # Description
SC100 Model SC100 CO2 Flowmeter
CO2 flow rates: 0.5 - 5.0 l/min
LC500 Model LC500 CO2 Flowmeter
CO2 flow rates: 1.0  -  10 l/min
XL900 Model XL900 CO2 Flowmeter
CO2 flow rates: 3.0  -  25 l/min
WMB2 Wall Mount Brackets
w/Mounting Hardware
FMT2 Tubing, 10’ w/ Coupler Kit
5/16” ID x 9/16” OD
LPRE Low Pressure Regulator
0 - 60 psi, w/ tank gauge
  CALL for CO2 flowmeters with higher flow rates.

Downloads

AttachmentSize
CO2 Flowmeter for Euthansia   [application/pdf]1.52 MB

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