Arena Service Manual
12.3 NIBP OPTION
12.3.1 Overview
The Noninvasive Blood Pressure (NIBP) Monitor communicates
with the SBC via the Peripheral Interface board. See Section 5.9
for more information.
The Switching Power Supply provides the +5, +12, -12 VDC
power and ground for this module via the Peripheral Interface
board. See Section 5.9 for more information.
The NIBP Monitor consists of the following components:
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Cuff, connecting tubing, and holder
Cuff port
Blood pressure module
See Sections 2.4.8 and 2.8.1 for a brief description and location of
these components.
The optional NIBP Monitor permits the operator to obtain a patient
blood pressure history during treatment. The interval between
automatic blood pressure readings can be set at 5, 15, 30, 45, or 60
minutes, or OFF. This automatic blood pressure reading schedule
may be set and started, changed, or manually turned off by the
operator during the Prime and Dialyze Modes. The schedule is
automatically turned off at the transition into the Rinse Mode.
At the end of a successful Self Test Mode, the blood pressure
history is erased.
If a valid pulse reading is not obtained during a blood pressure
reading, “?” is displayed for the pulse, but the blood pressure
reading is displayed.
The factory-set alarm limits are shown in Table 12-1.
Table 12-1. Pressure Limits
Pressure Minimum Maximum
Systolic 100 mmHg 200 mmHg
Diastolic 60 mmHg 200 mmHg
Refer to Section 27.5.1 for the NIBP Monitor specifications.
In the event of a power failure or soft power off of less than
approximately 20 minutes, the NIBP Monitor settings and blood
pressure history are saved. The pressure cuff will automatically
deflate during a power failure or soft power off.
12-14 157-1278-919 Rev A
April 2004