Hi Dave,
drager recently introduced a very strict policy regarding their products. Authorized service of Drager has all the documents in a secure electronic format on a their laptops. It is very good secured. The vast majority of the Drager service manuals posted on the Internet are not full (eg. lack of spare part numbers, control procedures, and many others). Drager is currently manufactured devices are only supported by firmware from a laptop - for example, through software called HIT. Devices of Drager do not have a service mode (ventilators Oxylog 3000, Carina etc. -PC only) or service access is blocked by a special key (Primus, Zeus, Apollo) - the application of service laptops. Drager prohibited also sharing of service manuals at
http://www.frankshospitalworkshop.com.
For these reasons I suggest to anyone NOT of their devices even though I think they are good or very good. The operating costs of these devices are the biggest in the world with among of other manufacturers.
