BIOPAC® Systems, Inc. Logo

NIBP100A sensor height & signal output

Sensor Height

NIBP100A blood pressure measurements will differ depending on whether the sensor is placed lower or higher than the subject’s heart (sensor height relative to the subject’s heart). This is natural and expected. In order to eliminate this potential problem, you have to ensure that the sensor is at the same height for all subjects and that this level approximates heart level as closely as possible.
  • One simple technique is to insert a pen under the subject’s armpit with the pen being parallel to the ground and keep the sensor at the level of the pen.
  • Another option is to place the subject’s arm in a sling because this will help to maintain the same height during the course of the test.

Alternatively, the NIBP100A has settings that can compensate for differences in the sensor height. Please consult the NIBP100A manual for details.

Flat Signals

Whenever the NIBP100A does not manage to get a reading from the subject it will plot a flat line. The NIBP100A tries to take a reading as often as possible. When it takes a reading it outputs the pulse waveform for the reading and replicates it until it is able to take another reading. The system takes a new blood pressure reading every 10-15 beats of the heart. If it fails to take another reading, it gives you a straight line from the time it failed until it takes another reading.

Analog Output

If you are unable to get an analog output signal from the NIBP100A, but the unit is measuring and displaying BP values on the front panel, the problem might be related to the Data Port setting. The analog output signal comes from the NIA V-Line interface that attaches to the data port on the rear of the unit. The analog output signal is only accessible if the device is set to no printer mode.

The Printer mode is identified when you first start the unit. The display will indicate whether the printer mode is set to one of three options: None / GSD / HP.

To change the mode so the unit will output the analog signals through the NIA V-Line interface:

  1. Turn the unit off.

  2. Hold down the Start/Stop button (hold down while you turn the unit on) and turn the unit back on.

  3. Repeat the cycle until the display shows that the Printer mode is set to None.

Associated Applications

Associated Application Notes

Associated Disciplines

Spotlight On
Buy MP41 with BSL

Practical Lab Kit with BSL 4 & MP41

BSL Home enables students to safely conduct hands-on physiology labs wherever they are! Purchase this complete lab solution to preserve practical lab experience! Includes MP41 Unit+Lead Set with BSL Home software, EL503 electrodes, WRAP1 self-adhering wrap for EEG lessons, and disposable 9 V battery. For instructors—BSL Home makes it easy for instructors to continue running practical […]

View All
Latest News

New Citations | Respiration Analysis and More

Comparing Diaphragm Tissue Between Healthy and Ill Patients The human diaphragm is one of the primary muscles used in respiration, contracting and expanding to control breathing. To measure how much diaphragms move for critically ill patients (in an Intensive Care Unit) compared to diaphragms in a healthy subject, patients at “Papageorgiou” General Hospital in Thessaloniki, […]

BIOPAC Systems Helps STARK Industries Launch VITAL Ventilator for NASA JPL

BIOPAC’s ventilator testing equipment and expertise supports STARK Industries’ effort to manufacture, validate, and test NASA JPL’s VITAL Ventilators Goleta, California – June 16, 2020 BIOPAC Systems, Inc. announced a partnership with STARK Industries, LLC to provide ventilator validation and testing equipment for the mass production of ventilators. STARK Industries was awarded a global license […]

Read All
Request a Demonstration
Request a Demonstration