3
RZ50e
Rev. 3
April 2005
Testing
Before starting up for the first time and whenever
the apparatus has been serviced.
Testing the BG 4 with built-in CO2 absorber:
The function test can be carried out four times
during the one-year storage period. The tests
should not take longer than 15 minutes each. They
must be noted on the housing of the CO
2 absorber
with indication of the month and year and initialled
by the tester.
If the breathing circuit is opened for more than 5
minutes in exceptional cases, the ports of the CO
2
absorber must be hermetically sealed with the three
polyethylene plugs.
Test equipment and accessories
Test unit RZ50e
Sealing cap R 22 086
Additional test equipment by Dräger:
Quaestor E 12 490
Preparing for Tests
Ensure flow meter is powered and allowed to
stabilize to display ± 0.02
Align zero point of Flow Meter if necessary.
Pressure Gauge Preparation
• Connect battery to digital pressure gauge.
• Apply power to gauge, ensure gauge mode is set
to “mbar”.
• Depress “zero” button if display does not read
0.00mbar.
Tubing Connection
• Connect the small clear tubing to the left input of
the electronic pressure gauge.
• Connect the tubing with the clamp to the squeeze
bulb (positive side).
• Connect the female test adapter to the remaining
tube.
System Leak Test
• Adjust bulb flow restrictor closed (clockwise).
• Crimp tube end connected to female adapter.
• Apply positive pressure > 10 mbar.
• Close tube restrictor.
• Observe pressure gauge does not drop to zero
within 15 seconds.
Flow Meter
Pressure Gauge
Squeeze Bulb
(white band is negative)
Draeger Training 11/16 rev 1