49
Before you start any troubleshooting, begin, ifpossi ble,
by questioning the person reporting the fault. Ask about
front panel control settings, gas connec tions, patient
connections and how the fault appe ared.
Make sure that there has been no operating error. For
this purpose, see also the chapter Trouble shooting in the
Operating Manual.
There should be a logical trend in your tracing of the
fault or faulty function. Therefore, first try to trace the
faulty function, i. e. regulation of in spira tion, regulation
of expiration, monitoring, timing, voltage supply etc., and
then the faulty part.
Always start the troubleshooting in the pneu matic unit
since malfunctions very rarely occur in the electronic unit.
Troubleshooting
If you use the block diagram and the principle
diagram (at the beginning of this Service Manual), the
troubleshooting and servicing should not cause any
difficulties.
When you have found the faulty function, the most
suitable procedure is to track down the exact fault by
systematically replacing individual parts, one at a time.
When systematically replacing the various parts,
always start with the transducers (when used).
After exchanging transducer or any PC board, the
calibration should always be checked. For de tails, see
chapter Calibration in the Operating Manual.
Содержание Servo ventilator 900 C
Страница 1: ...Service Manual servo ventilator 900 C D E...
Страница 7: ...7 Principle diagram Not valid for SV 900 E Not valid for SV 900 D...
Страница 24: ...24 Electronic unit Regulation of inspiration...
Страница 34: ...34 Electronic unit Monitoring...
Страница 44: ...44 Pneumatic unit Electronic unit Disassembling...
Страница 45: ...45 Step motor assembly and pull magnet Disassembling...
Страница 54: ...Electronic function block diagram...