Use of Drager Pump

1
Use of Drager Pump Tubes
2
Preparation
3
Pump Leak Test

• Insert unopened tube into the socket
• Squeeze pump completely and release
• Pump is adequately leak-proof if the
  end-of-stroke volume indicator has not appeared
  after 15 minutes
• Remove tube from socket
• Press button to reset counter to zero

4
Preparing the Tube

• Select tube for the measurement required.
• Follow instructions for use (tube).
• Insert tip in opening on the lower pump plate
  keep it pressed against the ceramic edge while
  turning it, so that the glass is scored.

5
Preparing the Tube

• Pull tube over at an angle until the tip breaks
  off.
• Discard broken tip.
• Open other end of tube in the same way.
• Insert tube into pump, the arrow must point
  towards the pump.

6
Making a Measurement

• Check number of strokes required for the tube.
• Put forefinger and ringfinger in the middle of
  the lower pump plate and squeeze completely.
• Release pump.
• Evaluate the result.
• Remove used tube from socket.
• Flush pump.

7
Carbon Dioxide Tubes

• Determination of CO2 in air
• Measuring range 100 to 3000ppm
• Number of strokes 10
• Time of measurement approx. 4 mins
• Colour change white to violet

8
Carbon Dioxide

• (Simple Asphyxiants)

9
Acute Effects

• Rapid loss of consciousness
• Coma
• Anoxic brain injury

10
Chronic Effects

• Residual anoxic injury

11
Exposure Limits

• Atmospheric oxygen should gt 18 at normal
  barometric pressure

12
General Considerations

• Asphyxiants gases are those inhalants that act
  predominantly by oxygen deprivation.
• This may occur by simply displacing oxygen from
  inspired air.

13
Occupational Environmental Exposure

• One of confined space exposure (storage tanks or
  mines)
• Product of combustion and fermentation processes.
• Natural volcanic lake release