User's Manual Part 10

170 Specifications Welch Allyn Propaq LT Vital Signs Monitor
Alarms and Alerts
Leak rate
(manufacturing spec)
After a 1-minute settling period, not more than 1 mmHg per second at 200
mmHg when connected to a volume of at least 15 cc.
Rapid exhaust (dump) time 3 seconds typical to drop pressure in a 500 cc volume
from 300 mmHg to < 10 mmHg
Cuff inflation time 7
-8 seconds typical to 270 mmHg into a 500 cc volume in adult mode at sea
level
Maximum determination time
(without retries)
Adult 3 minutes
Pediatric 2 minutes
Neonate 1.5 minutes
Minimum time between automatic
measurements
30 seconds (Auto Mode)
2 seconds (Turbo Mode)
Allowable retries Two in each patient mode
Electrosurgery interference
suppression
Included
Table 17. Specification: Noninvasive Blood Pressure (NIBP) (continued)
Characteristic Specification
Visual alarm indicator at the monitor
Patient alarm Flashing red 0.3 seconds on, 0.3 seconds off
Equipment alert Flashing yellow 1.0 seconds on, 1.0 seconds off
Any alarm limit disabled Continuous yellow
Visual alarm indicator at Acuity
(when connected)
See Acuity Directions For Use.
Alarm indicators Red lights
Alert indicators Yellow lights
Audible alarm location Monitor
Acuity (when connected)
Audio tone frequency
(at the monitor)
1024 Hz
Audio tone volume (d = 1 meter)
(Can be configured with distinct tone
volume settings for standalone and
networked operation.)
High
Medium
Low
Off
67 dB typical (A)
60 dB typical (A)
53 dB typical (A)
Audio alarm indicator at the monitor
Patient alarm
high
-priority limit violation
[100 ms on, 80 ms off, 100 ms on, 80 ms off, 100 ms on, 260 ms off, 100 ms
on, 80 ms off, 100 ms on, 1 sec off, 100 ms on, 80 ms off, 100 ms on, 80 ms
off, 100 ms on, 260 ms off, 100 ms on, 80 ms off, 100 ms on, 4 sec off];
repeat.
Equipment alert
medium priority
[160 ms on, 200 ms off, 160 ms on, 200 ms off, 160 ms on, 3.96 sec off];
repeat.