dear friend
thanks for your reply. we got some 20 monitors installed in our hospital. of which 11 are with ecg,spo2,nibp&temp and rest are along with above it got etco2 and ibp. the first ones are shutting off after the 180 minutes deactivation of alarms. the rest ones with etco2 works well as long as we dont switch on the etco2. also the monitors are not working in 220v but works in 240v alone. what is a screensaver. also we doesnt know the password for entering the service area. please kindly tell us what would be the problem. have a nice day