Edinburgh Sensors, with its line of real-time gas monitors, has several options for devices well-suited for CO2-sensing for livestock stunning and slaughter including meat, pig and poultry processing.

Both the Guardian and GasCard real-time monitors offer highly accurate, online sensing capability for CO2 with real-time data logging and the possibility to integrate the sensors with alarm features or other gas-monitoring sensors as required.

The Guardian NG series uses infra-red detection to give a CO2 detection range of 0 – 3000 ppm and 0 – 100 % volume. The on-screen device can be used either to monitor concentrations but also to set-up the device, which has an initial warm-up time of just one minute.

There are two alarm relays, as well as an alarm that can be set at any point of the detection range, that can be used to control additional devices e.g. in the case of gas slaughter, could be used to vary the gas concentrations as required to provide the optimum gas mixtures. The response time of the device is short enough (less than 30 seconds from the sample inlet) that it is suitable for the time-critical nature of detecting gas concentrations in the stunning process, important as the legislation specifies exactly how long livestock can be kept under certain atmospheric conditions.

With 2% accuracy across the full range of detection, the device is also very robust as measurements are unaffected by 0 – 95% relative humidity. The use of the Guardian NG series for this particular application has been encouraged and recommended by Dr. Martin Wenzlawowics, Head of BSI Schwarzenbek for applied animal welfare at transport and slaughter.

The monitors can be mounted on the walls of the chamber where the livestock will be held as the Guardian NG series can detect gases from sampling points up to 30 meters away using their integral sampling system. All systems also come with the full technical and user support from Edinburgh Sensors 40 years of experience.

Source: Edinburgh Sensors