Dräger Aerotest HP Notice D'utilisation page 32

Bubble Test:
1. Check the pressure gage setting.
2. Insert the bubble test hose
into the corresponding test
connection (3) of the
measuring device.
3. Dip the other end of the
bubble test hose (4) into a
container filled with water.
4. Slowly open the compressed
air supply valve. Purge the
system (allow compressed
gas to escape).
Purge regularly maintained
systems for 2 to 3 minutes;
purge other systems for 5 to 6 minutes.
5. Count rising bubbles:
Severe build up of bubbles at CO

H S and SO test connection. In case of little or no
2 2
bubble build up, the device must be cleaned, see
chapter 6 on page 39.
Severe build up of bubbles in case of oil- and H

connection (uncountable). In case of little or no bubble
build up, the device must be cleaned, see chapter 6 on
page 39.
6. Close the valve.
4.2
1. Follow the applicable instructions for use for the tubes.
2. Break off both tips of the
Oil CO CO H O
2 2
3
3. Insert the tube as far as it
4
4. Tip the tube to one side
5. Do not break off any tubes above the open case as glass
, CO, nitrous gases,
2
NOTICE
O test
2
Empty the tube opener regularly of glass tips. To do this,
press in the two oval notches on the side and pull off the
upper part. Empty the lower part.
Preparing tubes
tube. Use the tube opener
for this purpose and
proceed as follows on
both sides:
will go into the hole of the
tube opener and turn it
once or twice (5). The
glass is scored.
(6), the tip breaks off and
falls into the snapper.
splinters could enter the case during the breaking process
and contaminate the measurement module or the first-
stage regulator.
en
Use
5
6
31