CONTOUR
10
2. Shorten the cylinder band by
feeding the excess length through the
buckles on the band.
3.4 RESET DEMAND VALVE
1. Press the black rubber reset button
on the side of the DV and check that the
red bypass knob is turned so that the flat
on the bypass knob aligns with the DV
outlet.
2. Check that the orange O-ring on
the DV outlet is clean and in good
condition.
3.5 CYLINDER PRESSURE/
LEAK TEST
1. Slowly open cylinder valve fully (on
Duo Sets open only one cylinder valve)
and allow 10 seconds for the apparatus to
pressurise.
2. Check that the pressure gauge
shows the cylinder is at least 80% FULL
(240 bar for 300 bar cylinders, 170 bar for
200 and 207 bar cylinders). Listen for
leaks.
3. Close the cylinder valve and
monitor the pressure gauge for one
minute. If the reading falls by more than
10 bar during this time there is an
unacceptable leak.
4. On Duo Sets, close the first
cylinder valve, vent the apparatus by
opening the DV bypass and repeat the
test using the second cylinder.
5. If the system fails the leak test:
close the cylinder valve, vent air from the
system by opening the DV bypass. Check
all pneumatic connections and repeat the
leak test.
6. DO NOT USE apparatus that leaks
excessively. Attach an explanatory note
and return the apparatus for service.
3.6 DV AND FACEMASK
3.6.1 All Facemasks
1. Check that the facemask is clean
and undamaged.
2. Check that the orange O-ring on
the DV outlet is clean and in good
condition.
To Next Page
Loading...
Need help?
General
