iWorX Polar PHRMP-220 Technical Note

PHRMP-220 Polar™ Heart Rate Monitor
Technical
Note
iWorx Systems, Inc.
www.iworx.com
LabScribe is a trademark of
iWorx Systems, Inc.
©2015 iWorx Systems, Inc.
PHRMP-220 (includes HRB-100 transmitter, sensor band, HRR-100 receiver
and extension cable)

Overview

The PHRMP-220 Polar TM
by Polar Electro, the leader in heart rate monitoring for the fitness industry, into the
iWorx data recording system.
With the PHRMP-220, the voltage changes that take place during an
electrocardiogram are picked up by two electrodes on the inside of a band around
the subject's chest. These voltages are transformed into simple coded signals by
the transmitter connected to the electrodes. The transmitter broadcasts the coded
signals to a receiver that is connected to the data recording system. Since the
frequency of the coded signals from the transmitter correspond to the heart rate of
the subject, a periodic rate function in the recording software is used to convert the
frequency of the coded signals into a display of the subject's heart rate. This
technology enables relatively noise-free heart rate determination to be made from
resting or exercising subjects.

Components of the PHRMP-220

The components of the PHRMP-220 include:
HRB-100 WearLink™ coded transmitter.
•
Elastic sensor band with Smart Fabric™ electrodes.
•
HRR-100 coded receiver.
•
Mini phone jack to mini phone plug extension cable.
•
Heart Rate Monitor incorporates technology developed