NIBP Controller
Owner’s Guide
20
5.
Click the Start button in LabChart to begin recording.
6.
Push the Start/Stop button on the front of the NIBP Controller to begin a
measurement cycle. The pump should start and the cuff should inflate.
Observe that the pressure waveform climbs up to the preset maximum
cuff pressure. At some point in the inflation cycle you should see the pulse
signal start to decrease in amplitude as the cuff starts to occlude the blood
flow.
When the maximum cuff pressure is reached, the pump will stop and the
pressure will begin to drop. The pressure will drop until it reaches about 40
mmHg at which point an valve is opened to release the remaining air quickly.
As the pressure drops the pulse signal will start to increase again. Typical data
is shown in Figure 2–3.
Connecting Pulse Transducers
The Pulse Input connector (Figure 1–1) on the front panel is a 6 pin DIN type
connector allowing attachment of the pulse transducer in the MLT125M
(mice) or MLT125R (rats) Pulse Transducer and Pressure Cuff assemblies.
Your NIBP system will have been purchased with one of these assemblies.
They are also available separately if you require a replacement, or wish to
study both mice and rats.
S
ta
r
t
Pulse Input
Pulse Range (BPM)
C
uff
40 - 150
90 - 420
240 - 600
S
tatus
Powe
r
S
top
AD
INSTRUMENTS
NIBP Controller
Tail cuff
Animal restraint cage
Figure 2–2
The NIBP Controller and
PowerLab set up for use
with tail cuff, pulse
transducer and animal
restraint cage
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