Before Use; Prepare Measuring Device - Dräger Aerotest HP Notice D'utilisation

Before Use

Prepare measuring device

NOTICE
Only use a device if it is clean.
● Clean connection of the compressed gas supply (blow out with oil-
free and grease-free air).
● Clean the measuring device. It must be free of particles and dust.
● Unscrew the protective cap
and connect the pressure
reducer with the connection
of the compressed gas
supply (1). Do not use a tool
for pressure reducers. Only
use your hands to make the
connection. If necessary,
use adapters: see "Technical
data" on page 35.
● Connect the measuring
device (2) to the pressure
reducer (plug connection).
High pressure system:
● The pressure reducer is
preconfigured to 8.5 bars.
Low pressure system:
● In cases of alternating
primary pressures from 3 to
15 bars, the pressure point
(3 bars) must be readjusted
on the pressure reducer's
handwheel. Check the
pressure gauge setting.
24
1
2
● Insert the bubble test hose in
the corresponding test
connection (3) of the
measuring device.
● Dip the other end of the
bubble test hose (4) in a
container full of water.
● Slowly open the compressed
gas supply valve and clean
the compressed gas system
(disperse compressed gas).
In case of regularly
maintained systems:
2 to 3 minutes.
For other systems:
5 to 6 minutes.
● Count the rising bubbles:
Severe build up of bubbles on CO
test connection. In case of little or no bubble build up, clean the
device, see "Cleaning" on page 32.
Severe build up of bubbles (uncountable) on oil and H
connection. In case of little or no bubble build up: clean the device,
see "Cleaning" on page 32.
● Close valve.
Oil CO CO H O
2 2
3
4
, CO, nitrous gases, H S and SO
2 2
O test
2
2