Manual Version 19 / 01-2019 II Page 37 of 44
SF2 ECCR OPERATION MANUAL
8.3 Assembly Check
• Check all diving cylinders for the correct content (gas) and control the cylinder
pressures. This includes not only the oxygen and diluent bottle, but also the argon
bottle and all bailout stages.
• Make sure the scrubber has been properly filled and installed.
• Check that the two head clamps, the three D-gas connections (solenoid, ADV and
MAV) and the tank brackets are properly locked.
• Check the settings on the controller and the battery charge level.
• Tip the SF2, check the counterlung and check whether the outlet / pressure relief
valve on the counterlung is closed. Perform the positive pressure test.
• Stand the SF2 upright and perform the vacuum test.
8.4 Predive-Check
Oxygen side:
• Turn on the controller and breathe out of the loop. Turn on the oxygen bottle and
check the function of the solenoid and the solenoid shut-off. Also test whether the
controller can keep the setpoint stable. Now check the oxygen MAV and the MAV
Shut-Off and finally check the cylinder pressure. • Set the setpoint to 0.19, close the
oxygen bottle and breathe out the loop.
Diluent side:
• Turn on the diluent bottle and breathe out the loop until the ADV responds. Also
check the function of the ADV shut-off. Now test the Diluent-MAV, the Diluent-MAV
Shut-Off and the Wing-Inflator / -OPV. • Finally check the tank pressure.
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