Dräger Aerotest 5000 Notice D'utilisation page 18

Use
To enter press the (Set) key and use the keypad to enter the required
value, then press the right arrow. This automatically resets the system
pressure in the measured pressure. Press the arrow keys to continue
and confirm that the flow and pressure are correct for the test.
NOTICE
i i
In case of a loud exhaust air flow hearing protection may be
required.
Adjust the system's flow control valve so that the flow meter displays
the required value. Then check that the pressure is sufficient for
measuring the breathing air to be tested. It is recommended that this
flow be used for the complete duration of the test to simulate the
conditions of use.
Press the arrow key to proceed if the flow and pressure meet the
minimum requirements of the air supply to be tested.
If a foul odor can be detected at the sintered air outlet (6) stop the test
and press the "Fail" key. Seriously contaminated air could result in
damage of the Dräger Aerotest 5000. If no foul odor can be detected,
press the "Pass" key.
The Dräger Aerotest 5000 will commence a purge sequence of
approx. 5 minutes to remove contaminations from previous
measurements. Once the purge has finished, break off the tips of the
selected Dräger-Tubes and insert them into the corresponding tube
sockets (2-5). The arrow on the tube points away from the device.
Manually tighten the tube socket on the device.
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The Dräger Oil-Impactor is inserted into the socket for the oil tube (2).
NOTICE
i i
Do not remove the protective foil of the Impactor until after the
measurement has been completed. Observe the Instructions
for Use provided with the products when using the Dräger-
Tubes or the Dräger Oil-Impactor.
Then press the "OK" key to start the test.
displayed as a countdown. The airline pressure, ambient temperature
and the oxygen content are displayed as well.
The status of the individual measurements is indicated on the display.
The spinning hour glasses indicate that the test is being carried out.
The check marks indicate that the tests are complete.
Once the test is complete, the flow control valve must be closed.
Enter the readings from the measurement results of the tubes or the
Impactor into the Dräger Aerotest 5000.
To enter the results press the relevant box on the display and use the
numeric display. Then press the
all other values.
Once all results have been entered, press the right arrow key. The
results entered can no longer be altered.
After the test is complete, the display automatically indicates whether
the test was a pass or fail. All measurement values determined during
the test are displayed. If the test was a fail, the criteria that do not fulfill
the standard are indicated by an alternating asterisk.
In EN 12021 for airline systems less than 40 bar, the pressure
dewpoint, i. e. the temperature at which water will begin to condense
into a liquid form in the airline, must be at least 5 °C below the lowest
temperature at which the system will be used.
The duration will be
arrow and repeat the process for
Dräger Aerotest 5000