Alert-it Care Systems P139AA, Инструкция по эксплуатации

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UH1075_P139_Instructions_English.ppp 29/08/2016 16:01:45 Page 6 of 22
P139 GUARDIAN MONITOR INSTRUCTIONS
RESET and SUSPEND SHALLOW MOVEMENT MONITORING
If the alarm is active and latched (eg on radio units), then press RESET to clear the alarm. The monitoring will then
be suspended until 10 movements are detected (indicating the user safely in bed) or the Bed Occupancy signal is
present. This allows the monitor to remain dormant in the day, and automatically revert to monitoring at night or
whenever the bed is occupied.
For non-latched (eg Nurse Call) units, the alarm will automatically clear once movement is again detected. Alterna-
tively press RESET to suspend the monitoring.
Using the Bed Vacant signal provides a secure automatic way to prevent false alarms when no-one is in the bed,
though a risk assessment is essential as it will inhibit alarms if the person falls out of bed or moves off the occupancy
sensor mat (eg in a double bed).
The monitor must be checked that it has returned to ACTIVE once the occupant has settled back in bed
Using the suspend function is preferable to turning the unit off as there is no chance of the user returning to bed un-
protected (bar equipment failure).
SHALLOW MOVEMENT MAGNIFICATION
To allow for different thickness, structure and composition of mattresses and the depth and degree of the
user's movements, the monitor has an adjustable threshold setting.
Ÿ To help set this an audible “tick” can be enabled to sound each time a shallow movement is detected. Hence
set TICK VOLUME to 8 (full volume) and have the user or a suitable subject lie as still as possible on the bed.
Ÿ
Any Bed Occupancy Sensor should be disconnected for this test.
Ÿ
The SHALLOW MAGNIFY is then increased until a regular series of ticks is heard, at least as often as any
chest motion is observed.
Ÿ
The bed should then be vacated and the ticking should cease, to check that room vibrations or air currents do
not cause unwanted activation of the movement detection function. Should this occur then the MAGNIFICA-
TION must be reduced and the above tests repeated.
Ÿ
After successful setting, turn off the TICK facility.
ROUTINE TESTING SHALLOW MOVEMENT DETECTION
The Monitor should be tested on a regular basis. The confidence check establishes that the shallow movement alarm
is operating correctly. For test purposes the bed should be empty. Push the mattress gently and rythmically and note
that a
*
symbol appears in the bottom right of the display. Check this does not appear when there is no movement
applied.
BODY SPASM MOVEMENT MONITORING
The spasm movement monitoring function of the monitor uses the bed movement sensor. For details see Bed
Movement Sensor Installation (
Page4 )
When the Monitor has detected a spasm movement of sufficient intensity, a ‘#’ symbol will flash on the screen above
the motion arrow in time with each movement.
SPASM ALARM
The seizure alarm is activated when movements are detected which are greater than a pre-set energy level and faster
than a pre-set frequency, as well as lasting for at least a pre-set period. The monitor will then display the message
“SPASM MOVEMENT ALARM”, and the alarm output activated.
SPASM DELAY
This setting adjusts the minimum period that movements need to persist before the alarm is activated. The period is
adjustable between 5 and 60 seconds or, alternatively, the spasm alarm feature can be switched off. This can be done
by pressing the 'menu' button until the screen “SPASM DELAY” is observed. Press the ‘INCREASE’ button to turn the
seizure alarm function on and increase the setting. Press the ‘DECREASE’ button to decrease the time setting.
Decreasing the time below 5 seconds will turn off the seizure alarm function.
If the time delay is set for too short a period, this will give an early warning of body movements, which may not
necessarily be seizure movements, and is more likely to cause false alarms. If the time delay setting is increased this
should reduce the probability of false alarms, but may not detect spasm movements of short duration. Some prior
knowledge of the nature of the user’s seizure patterns is desirable to make a suitable choice of the time delay setting.
The monitor will normally be provided with a pre-set time delay of about 15 seconds for general use and may not need
to be changed, unless a more suitable specific setting can be selected based on experience with the user.