We have one or more Euthanex SmartBox chamber systems, what do we need to do?
This depends on the model of SmartBox you have at your facility. Some models will not require any modification to comply, others will require some modification and/or a new gas supply system. A document is available upon request with a list of all SmartBox chamber models and what is required for compliance with the new guidelines for each. Please contact us to obtain a copy.
We have a SmartBox chamber system that requires modification, how do we get this done?
In most cases any modification of your SmartBox will either need to be performed by a factory authorized technician on-site or the controller shipped back to E-Z Systems. Rarely will you be able to perform the modification yourselves. E-Z Systems will be implementing an exchange program for SmartBox electronic controllers to make this process as simple as possible. If your system requires a new gas supply system, we can provide instructions for installation or a technician can visit to perform the installation. A document is available upon request with a list of all SmartBox chamber models and what is required for compliance with the new guidelines for each. Please contact us to obtain a copy.
We have a SmartBox chamber system and would like to operate at the highest possible displacement rate. What is the maximum flow we can get out of our system?
E-Z Systems/Euthanex highly recommends that our chamber systems are operated at the lower end of the allowed range, 30% – 40%. Due to physical limitations when working with CO2 gas, operating your chambers at higher flow rates can be impractical, inefficient, expensive and in many cases, unsafe. Through years of in-house testing and anecdotal evidence from users, we have determined that a 30% displacement rate is ideal in terms of animal welfare as well as operator safety and efficiency. Feel free to contact us with any specific questions on this stance.
We are using Euthanex Lids, either with a SmartBox controller or with a Regulator/Flowmeter, what do we need to do?
E-Z Systems provides three methods for controlling flow rate to a Euthanex Lid: Flow meters, Flow Restrictors or the SmartBox Prodigy device. Flow meters will have a “ball-in-tube” configuration where flow rate (liters per minute/LPM) is controlled by a knob or screw. They may be mounted on a tank regulator or operated as a separate device. Flow restrictors are a brass fitting installed in the top of the Euthanex Lid that operates at a fixed flow rate based on the incoming pressure. The SmartBox Prodigy is an electronic touchscreen controller that delivers gas to the Euthanex Lids.
When using a flow meter, you may simply set the flow meter to the new desired rate. To determine the flow rate, take the dimensions of your cage or chamber and perform the following calculation:
L x W x H (cm) = Volume in cubic centimeters (cm3)
cm3/ 1000 = Volume in Liters (L)
L x [30% – 70%] = Flow Rate in Liters per Minute (LPM)
If you are using Flow Restrictors, these have already been configured to deliver a 30% displacement rate and thus are already in compliance with the new guidelines. If a higher displacement rate is desired, new flow restrictors will need to be installed in the Euthanex Lids. In this case, please contact E-Z Systems with the dimensions of your cages and the desired displacement rate. We will then contact you with the cost of new restrictors and instructions for their installation.
If you are using the SmartBox Prodigy, consult the operator manual for details on setting flow rate.
I hope that you find this information helpful. Please direct any questions or concerns to your E-Z Systems associate or representative. Or contact us by calling 877-559-0159 or by using our form here.