iWorX Polar PHRM-100 Technical Note

PHRM-100 Polar™ Heart Rate Monitor
Technical
Note
iWorx Systems, Inc.
www.iworx.com
LabScribe is a trademark of
iWorx Systems, Inc.
©2015 iWorx Systems, Inc.
PHRM-100 (includes HRB-100 transmitter, sensor band, HRR-100 receiver
with DIN8 connector, and extension cable)

Overview

The PHRM-100 Polar TM
Polar Electro, the leader in heart rate monitoring for the fitness industry, into the
iWorx data recording system.
With the PHRM-100, 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 PHRM-100

The components of the PHRM-100 include:
• HRB-100 WearLink™ coded transmitter.
• Elastic sensor band with Smart Fabric™ electrodes.
•
HRR-100 coded receiver.
• DIN8 mini phone jack to DIN8 adapter for the HRR-100.
• Mini phone jack to mini phone plug extension cable.
Heart Rate Monitor incorporates technology developed by