Trio™ Operating Instructions
0070-10-0666-01
6 - 17
Appendix
Physical Specifications
6.3
Physical Specifications
6.3.1
Information Display and Control
6.3.1.1
Front Panel Display
6.3.1.2
Rotary Knob (Navigator
™
)
The rotary knob is a 16-position per revolution encoder with an integral push button switch
6.3.2
LED Indicators
6.3.2.1
Alarm Indicators
Visual alarm indicators are in accordance with EN475: 1995
The Alarm Indicator is a top mounted, bi-color LED with a clear, frosted lens.
A red LED will flash at 1.4 – 2.8 Hz (84 times/minute) at 50% duty cycle during a warning
alarm (high priority).
A yellow LED will flash at a rate of 0.4 – 0.8 Hz at a 50% duty cycle during a caution alarm
(medium priority).
If a warning and caution alarm are in force simultaneously, only the red LED is activated.
Power Indicators
A green “AC Mains” LED is illuminated whenever the unit is connected to AC Power.
A green “Battery Charging” LED that is illuminated when AC power is present and the
battery is installed and charging. When the monitor is running on battery power, this LED
does not illuminate. When a “low battery” condition exists, this LED flashes at a constant
rate.
6.3.2.2
Keypad
A micro-switch keypad with provisions for 5 keys is provided. Key functions include: power
ON/standby key, NIBP start/stop key, PRINT start/stop key, ALARM MUTE key and
NORMAL SCREEN key.
6.3.2.3
Audio Indicators
An audio speaker is provided to annunciate alarms, message tones and systole beep tones.
Audio alarms are in accordance with EN475: 1995
DISPLAY TYPE
SIZE
MINIMUM RESOLUTION
Color active matrix TFT liquid crystal
8.4-inch diagonal
800 x 600 pixels