CAUTION: Always check that the connection to the vaporizer and to the gas supply
and patient are secure when using the equipment. Remember, the only way your patient
can get life giving oxygen is through these connections.
After installation, turn on the oxygen supply and check for leaks at the vaporizer
connections by partly blocking the outlet of the machine and painting the joints with soap
solution.
INSTRUCTIONS FOR USE:
CONTROLS;
The dial knob on the top of the vaporizer is marked in % of volume of the
anesthetic for which the vaporizer is calibrated. In the off or “0” position, the dial locks to
prevent accidental turn on. To turn on the vaporizer, press down the locking key while
rotating the dial counter clockwise. A resistance to turning will be noted during the first
few degrees of rotation as a cam operated by-pass valve is activated. This portion of the
dial scale is marked and should not be used. When in the “0” position, gas entering the
vaporizer is by-passed to the outlet and the vaporizing chamber is sealed off – no
anesthetic is entering the gas stream. As the dial is rotated counter clockwise, the output
concentration gradually increased in accordance with the calibration marked.
FILLING AND DRAINING;
To fill the vaporizer, turn the dial to “0” if the vaporizer is in an active situation (it
is not then necessary to turn off the gas supply), unscrew the filler cap and fill the
vaporizer with the appropriate anesthetic. The liquid level indicator is uncalibrated, but it
is only necessary that the liquid level be seen to be acceptable for operation. A dry
vaporizer will accept approximately 200 ml of liquid and approximately 150 ml when the
wicks are wet. The top of the filler is lower than the working parts of the vaporizer so that
it is not possible to overfill the vaporizer when in a level position. Replace the filler cap
snugly so that it is leak tight but still can be removed by hand.
To drain the vaporizer, remove the filler cap exposing the head of the drain screw.
Position a collecting bottle under the drain spout and then loosen the drain screw a turn or
two. After draining, secure the drain screw and replace the cap. It is advisable to drain the
vaporizer when it is to be moved, transported, or shipped, to prevent draining, should be
done to reduce the concentration of Thymol, a preservative, from collecting in the liquid.
