The GAV vaporizer provides an effective means of controlling agent delivery over a broad spectrum of clinical situations. It is designed for use in continuous flow techniques of general anaesthesia and has a finely graduated dial coupled with an output which remains largely unchanged over a wide range of dial settings, flow rates and temperatures.

Safety features such as interlock, non-spill and keyed filler are incorporated and many convenience features are also included to provide reliable and trouble free operation.

The vaporizers are agent specific with clear labelling and colour coding to identify the agent with which they are designed to be used.

No servicing is required for three years and then we recommend that the calibration is simply checked on site each year after that.

Specifications

Calibration

                                Each GAV vaporizer has a single control dial which is calibrated in          percentage of anaesthetic agent vapour per total volume (% v/v). 

                                The dials for Isoflurane and Halothane are calibrated to 5% v/v      in         steps of 0.2% up to 1% and in steps of 0.5% from 1% to 5%.

                                The dial for Sevoflurane is calibrated to 8% v/v in steps of 0.2% up          to 1% and in steps of 0.5% from 1% to 8%.

 

Accuracy 

                                Under calibration conditions i.e. a flowrate of 5 litres/minute oxygen

                                And a temperature of 21 ± 2 degrees C. the delivered        concentration is ± 10% of dial setting or ±0.10% v/v whichever is the greater.

 

Resistance to gas flow

                                When the vaporizer is ‘Off’ it is isolated so it offers no resistance to gas flow.

                                With the dial turned on, the resistance is 15-20cm H₂O at a flow of 5 l/min O_2.

 

Operating temperature    

                                18^o – 35^oC

 

Liquid Capacity

                                300 ml nominal – wicks dry 

                                75 ml nominal retained by the wicks

  

Weight and dimensions

 

                                Height:    240 mm

                                Width:     115 mm

                                Depth:    200 mm

                                Weight:   7 Kg dry