12
Mobil-O-Graph
®
, operating instructions, Rev. 5.1 10/2015, GmbH
3. Product description
DAY/NIGHT
The DAY/NIGHT key allows waking and sleeping phases to be differentiated when record-
ing, which is important from the point of view of statistical evaluation and graphic presenta-
tion. For precise details of the effects on the printout, please see the relevant sections on
analysis.
Briefly:
the patient is instructed to operate the “DAY/NIGHT” key on going to bed and again
when getting up in the morning. This adjusts the monitoring interval to suit the individu-
al patient and helps you in assessing the BP profile. As well as adjusting the interval, the
appropriate notes are shown on the printout. If this key is not operated, the change in inter-
val will take place according to the protocol selected.
EVENT
This key allows the patient to record the time at which medication is taken or any events
happen that may cause blood pressure to rise or fall.
Pressing this key directly triggers a measurement. The patient should note the reason for
pressing the Event key in the events diary.
START
This key starts the 24-hour measurement period and also allows a measurement outside the
pre-set measurement cycle.
Caution:
The result of the first measurement should be checked by the doctor for plausibil-
ity, to ensure that the subsequent automatic measurements are correct, and that
the cuff fits properly. If the measurement is incorrect, the instructions in the sec-
tions
Preparing for monitoring
and
Troubleshooting
should be followed.
When the Start key is pressed, the number of measurements recorded so far is dis-
played and manual measurement begins. This differs from automatic measurement
according to the monitoring protocol, in that the cuff is inflated in stages. This deter-
mines the cuff pressure required to allow the systolic blood pressure to be meas-
ured. This maximum inflation pressure is stored and is then approached immedi-
ately by direct inflation for the subsequent automatic measurements.
The patient can use the Start key to take manual measurements in addition to the
pre-set measurement cycle.
3.3.2
Display
The LCD display is located on the front of the recorder housing (see
Figure 3.1 Monitor, top view
). It displays
useful information for the doctor and patient on measurement data, monitor settings and measurement errors.
3.3.3
Acoustic signals
The acoustic signals used consist of single or multiple beeps.
The following signals are emitted:
1 beep
Switching on or off, start and completion of a measurement (except for night
intervals), removal of interface cable, end of IR communication, set-up and end
of Bluetooth communication, and measuring error
3 beeps
System error
Continuous beep
Serious system error (e.g. cuff pressure is greater than 15 mmHg for more than
10 seconds outside of a measurement)
Combined beeps
When deleting measurements manually, first one beep is emitted and 2 seconds
later 5 beeps.
3.3.4
Cuff connection
The cuff connection is fitted on the front of the recorder housing (see
Figure 3.1 Monitor, top view
). This metal
plug is used to connect the recorder with the cuff via the cuff tube and the metal cuff socket.
Important: Both the doctor and the patient should be aware that the metal plug (air connector) must
always engage with an audible click. Otherwise there will be a leaky connection between
the Mobil-O-Graph
®
and the tube that will produce incorrect measurements.
3.3.5
Data port
The data port is located on the left-hand side of the housing (see
Figure 3.1 Monitor, top view
). The connector
cable supplied goes into this socket. This is a plug-in connection, i.e. the red dot on the plug must be aligned
with the red dot on the socket. To disconnect, pull on the outer metal ring of the plug (see section:
The analy-
sis unit
).
3.3.2