Alarms Changing Alarm Settings
TM80 Telemetry Monitor Operator’s Manual 6 - 7
To initiate auto alarm limits, follow this procedure:
1. In the main menu, tap Alarms.
2. Tap Alarm Limits.
3. In the Setup section, tap Auto Limits.
4. In the dialog that pops up, tap OK.
Then the TM80 will automatically calculate alarm limits based on the latest measured
values. Before applying these automatically created alarm limits, confirm if they are
appropriate for your patient from the Limits menu. If not, you can adjust them manually.
These alarm limits will remain unchanged until you select auto limits again or adjust
them manually.
The TM80 calculates auto limits basing on the following rules:
Module Parameter
Low Limit High Limit
Auto Limit Range
Adult/
Pediatric
Adult/
Pediatric
ECG HR/PR
(bpm)
(HR/PR×0.8) or 
40 (whichever is 
greater)
(HR/PR×1.25) or 
240 (whichever 
is smaller)
Adult/pediatric: 35 
to 240
Resp RR
(rpm)
(RR×0.5) or 6 
(whichever is 
greater)
(RR×1.5) or 
30(whichever is 
smaller)
Adult/pediatric: 6 to 
55
SpO
2
SpO
2
 (%) Same as the 
default alarm 
limit
Same as the 
default alarm 
limit
Same as the 
measurement range
NIBP NIBP-S
(mmHg)
(SYS×0.68 +
10)
SYS×0.86 + 38
Adult: 45 to 270
Pediatric: 45 to185
NIBP-D
(mmHg)
(Dia×0.68 + 6) (Dia×0.86 +
32)
Adult: 25 to 225
Pediatric: 25 to 150
NIBP-M
(mmHg)
(Mean×0.68 +
8)
Mean×0.86 +
35
Adult: 30 to 245
Pediatric: 30 to180