It is important that the operator understands the alarm features of the Visio-3 because it may compromise
the quality of a product or may compromise the health & safety of personnel depending on the Visio-3
application. The alarm handling for a Priority-1 screen is different for that of the Priority 1-2-3 screen and
it is for this reason that they will be explained separately.
Visio-3 August 2020 Rev 1
7.0 Alarm Handling General Operation Guide
Priority-1 Screen Alarm Handling
CAUTION !
ROOM PRESSURE
NOW CRITICAL
These parameters are deemed
non-critical in a Priority-1
configured homepage.
The alarm features differ from the
Pressure in that the Visio-3 does
not display an alarm message
screen when in an alarm state.
When either parameter deviates
from setpoint by a pre-set
amount, the associated bar
changes colour from green to
amber thus indicating a warning.
The alarm buzzer will activate
every 5 mins for 10 secs.
If the parameter deviates further
from the setpoint, the bar will
change colour from amber to red
thus indicating an alarm. The
buzzer will remain active until
muted or until the alarm condition
disappears.
Temperature
Rel-Humidity
This parameter is deemed to be
critical in a Priority-1 configured
homepage.
The alarm feature displays an
alarm message screen when in
an alarm state.
When the Pressure deviates from
setpoint by a pre-set amount, the
homepage changes colour from
green to amber thus indicating a
warning.
The alarm buzzer will activate
every 5 mins for 10 secs.
If the Pressure deviates further
from the setpoint, the homepage
will change colour from amber to
red thus indicating an alarm. After
a 7 sec delay the alarm message
screen will appear, remain for 14
secs and subsequently alternate
with the homepage for as long as
the alarm condition exists.
The buzzer will remain activated
until muted or until the alarm
condition disappears.
The Rel-Humidity will alarm in a
similar way to the temperature
with the exception of the buzzer tone.
The alarm buzzer for each of the
parameters differ which enables the
operator to identify the alarm type
without having visual contact with the
Visio-3.
Page 9
14.7 Pa
Rel.Humidity Setpoint
53.8%rH 55.0%rH
Pressure
Cleanroom MENU
19:12:11 05-Jul 2013
Temperature Setpoint
20.0°C
20.4°C
15.0Pa
Setpoint
14.7 Pa
Rel.Humidity Setpoint
53.8%rH 55.0%rH
Pressure
Cleanroom MENU
19:18:11 05-Jul 2013
Temperature Setpoint
20.0°C
17.5°C
15.0Pa
Setpoint
14.7 Pa
Rel.Humidity Setpoint
53.8%rH 55.0%rH
Pressure
Cleanroom MENU
19:24:17 05-Jul 2013
Temperature Setpoint
20.0°C
15.3°C
15.0Pa
Setpoint
9.2 Pa
Rel.Humidity Setpoint
53.8%rH 55.0%rH
Pressure
Cleanroom MENU
20:50:04 05-Jul 2013
Temperature Setpoint
20.0°C
20.4°C
15.0Pa
Setpoint
7.1 Pa
Rel.Humidity Setpoint
53.8%rH 55.0%rH
Pressure
Cleanroom MENU
20:57:16 05-Jul 2013
Temperature Setpoint
20.0°C
20.4°C
15.0Pa
Setpoint
