SLE SLE4000 Model B, Руководство по обслуживанию, Страница: 104 / 328

Page 104 (Model C)
14. Calibration Procedure for V4.1 to 4.3.2 software
The calibration procedure is to be used in-conjunction with a checklist. The
checklist is used to record the calibration values set during the procedure. This
checklist will be become part of the service record of the ventilator. A template
checklist (which should be copied) is to be found in
Appendix 1 of this manual on
page 289.
Where information needs to be recorded the user will see symbol next to
the section.
Note: Prior to calibration enter ENGMODE and record the following Gain /
Offset values. This will allow you to revert the ventilator back to it pre-
calibrated state if required.
Gain and Offset for the 1 PSI and 2.5 PSI pressure transducers.
Gain and CMV Offset for the Forward jet.
Gain and CMV Offset for the Mean jet.
Insp leading Edge Fast / Slow rise time and F/S Balance.
Exp leading Edge Fast / Slow rise time and F/S Balance.
Use the table at the back of Appendix 1.
14.1 Preliminary Inspection before calibration
a) Check all tubing connections are fully home in their fittings.
b) Check that the oxygen fuel cell is properly located (finger tight) and that its
electrical connector is mounted on an adhesive clip.
c) Check that the electrical connections to the high speed valves are screwed on
tightly (finger tight).
d) Check the pneumatic harness with particular attention to the connections to
the 25 way ‘D’ type connectors, the pressure transducer and the oxygen cell.
e) Ensure that the exhalation block can be removed and relocated easily and that
the nozzle assemblies (jet blocks) and ‘O’ rings correctly fitted – orange
coloured.
f) Ensure “duckbill” non-return valves are fitted to the 0
2
and air intakes by
directly connecting a hose between the air and oxygen regulator outputs.
Apply air and disconnect the air supply hose to prove there is no leak and then
reconnect and check the oxygen supply hose for no leak.