28th DaY of AttAchMent

Second Day and also the last day of training of the 840 ventilator. The trainer, Mr Liew Kwok Meng, talked more about the extended self test which is done after the standard self test. You have to press the "test" button when the 3 indications turns red after you on it in order to go to the extended self test. There are various calibration and tests to be done. However, for PVT, you need a PTS 2000 and a software to do the test. Since AH does not have these following items, PVT can not be done. There is a bottle of soapy solution, snoop, which is used for checking any leaks.Mr Liew demostrated the working pressure test by to check the pressure of oxygen and medical air. If the pressure is off the limit, you have to adjust the cranks just on top of the oxygen sensor.

Mr Liew gave us some troubleshooting to do. For my group, we have error messages such as ventilator inoperative, expiratory out of range and SM leaking. Firstly , for "ventilator inoperative" message, The O-ring in the filter is missing so we told Mr Liew the problem and he gave us the o-ring. Secondly, the connection between the inspiratory and expiratory port is not fully connected so we remove the socket and reconnected it. Lastly for the "SM leaking" message, we took quite some time figuring out the problem and found out that the o-ring for the oxygen sensor gone missing and told Mr Liew about it. After all the troubleshooting, we have to do SST and EST all over again to check for any error. Before dismantle the parts of the ventilator, make sure to check what kind of error it is and all connections are totally connected.

Lastly, the training ended by Mr Derrick Ng giving the certificates to the trainees and taking group pictures. It is a wonderful experience in Tyco for 2 days.