Technical data
Dräger PSS BG 4 plus 31
8 Technical data
Device characteristics
Dimensions, excl. harness
and breathing hoses
(L x W x H) 23.5“ x 17.7“ x 7.3“
(595 x 450 x 185 mm)
Weight
with filled carbon
composite cylinder and
Dräger FPS 7000 RP 30.64 lb (13.9 kg)
with filled carbon
composite cylinder and
Panorama Nova RP 30.42 lb (13.8 kg)
Breathing bag volume 5.5 l
Period of use under
moderate service
conditions
1
240 minutes
Breathing resistance
(at frequency f = 25/min
Breathing cycle volume =
2l)
Inhalation >0 mbar
Exhalation <7 mbar
Compressed oxygen
cylinders
carbon composite/ 2 l /
3000 psi
Oxygen quality see chapter 3.3.2 on page 11
Accuracy of the Sentinel
pressure measurement ±2 % of the final value
Ambient conditions
During operation
Minimum permissible
temperature
23 °F (-5 °C)
Minimum temperature of
5 °F (-15 °C) is permissible if
the closed-circuit breathing
apparatus was stored in a
temperature range of
59 °F to 77 °F
(+15 °C to +25 °C)
Maximum permissible
temperature
(when using an
ice pack)
when working at moderate
ambient conditions:
For temperatures of up to
104 °F (+40 °C) the period of
use is up to 4 hours
1
.
For temperatures of 105 °F to
140 °F (+41 °C to +60 °C) the
period of use is 1 hour
1
.
For temperatures of 141 °F to
194 °F (+61 °C to +90 °C) the
period of use is 15 minutes
1
Air pressure 900 hPa to 1200 hPa
Relative humidity 0 % to 100 %
During storage
Storage temperature 23 °F to 77 °F
(-5 °C to +25 °C)
Air pressure 900 hPa to 1200 hPa
Relative humidity 30 % to 70 %
1 When consuming 30 L/min.
Even if the recommended period of use is exceeded, the closed-
circuit breathing apparatus will operate correctly. Only the tempe-
rature of the inhaled air will increase.
Draeger Training 11/16 rev 1
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