(Model J) Page 109
17.2 Preliminary Inspection before calibration
a) Check all tubing connections are fully home in their fittings.
b) Check that the oxygen cell is properly located (finger tight) and that its
electrical connector is connected.
c) Check that the electrical connections to the PR3, PR4 and PR6 are screwed
on tightly (finger tight).
d) Check the pneumatic harness with particular attention to the connections to
the 25 way ‘D’ type connectors.
e) Ensure that the exhalation block can be removed and relocated easily and that
the nozzle assemblies (jet blocks) and ‘O’ rings correctly fitted.
f) Check for leaks in the pneumatic system.
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