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Use of Drager Pump & Tubes

The document provides instructions for using a Drager pump and tubes to make measurements. It describes preparing the pump with a leak test and resetting the counter. Tubes are selected for the measurement needed and prepared by snapping the tips and inserting the tube into the pump with the arrow pointing towards the pump. A measurement is made by squeezing the pump completely and releasing it to evaluate the result. Carbon dioxide tubes are specified for measuring CO2 levels in air between 100-3000ppm over 4 minutes, with a color change from white to violet. Information is also given on the acute and chronic effects of carbon dioxide exposure and exposure limits.

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80 views13 pages

Use of Drager Pump & Tubes

The document provides instructions for using a Drager pump and tubes to make measurements. It describes preparing the pump with a leak test and resetting the counter. Tubes are selected for the measurement needed and prepared by snapping the tips and inserting the tube into the pump with the arrow pointing towards the pump. A measurement is made by squeezing the pump completely and releasing it to evaluate the result. Carbon dioxide tubes are specified for measuring CO2 levels in air between 100-3000ppm over 4 minutes, with a color change from white to violet. Information is also given on the acute and chronic effects of carbon dioxide exposure and exposure limits.

Uploaded by

kanakarao1
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPT, PDF, TXT or read online on Scribd
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Use of Drager Pump & Tubes

Preparation

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

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.

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.

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.

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

Carbon Dioxide
(Simple Asphyxiants)

Acute Effects
Rapid Coma Anoxic

loss of consciousness brain injury

Chronic Effects
Residual

anoxic injury

Exposure Limits
Atmospheric

oxygen should > 18% at normal barometric pressure

General Considerations
Asphyxiants

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

Occupational & Environmental Exposure


One

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

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