9) Equipment State Alarm
The following circumstances raise a signal of “Ding-dong~” to ask a user to pay attention:
① The contacter of Doppler Probe in use is disconnected from the main body (Er1)
② Out of paper during recording (Er2)
③ The switch is firstly on
④ Set-up values are changed and stored
In cases of ① and ② among the above circumstances, a signal of “Ding-dong~” will be continued
until pressing any of keys on the operation panel. (See Paragraph 3 of Chapter 4 : Error
Message)