Exercise Heart Rate Monitor (EHR-BTA)

Specifications and User Guide

Troubleshooting

• Primary Test: Snap the module into place on the strap. Place the strap with the module in place on the subject. If the strap is not in contact with the skin, it will not work.  Connect the receiver to an interface and start the data collection software. Make sure the module and the receiver are at the same level to receive the best signal.
• Secondary Test: The sensor supports Bluetooth^® connection (without the need for the receiver) if it has the removable Polar Heart Rate Module. Connect the sensor via Bluetooth to your LabQuest 2, LabQuest 3 or device running Graphical Analysis app. If the strap is not in contact with the skin, the sensor will not show in the list of available devices. This is the recommended method for collecting heart rate data.

TIPS

Confirm that the following are OK.

• The receiver is within 80 cm of the chest strap.
• There are no electrical devices within 25 centimeters of the receiver (interfaces, computers, cell phones, electrical lab equipment)
• No other receivers or transmitters are near the sensor
• The contacts are clean
• Readings have stabilized before starting the experiment.
• Battery is good. If the reading for the Heart Beats Graph is a flat line, the battery may be dead.

Note: As units approach their third and fourth year of service, the battery in the module needs to be changed. The battery is a CR 2025, available at most drug stores. Please be sure to dispose of the old battery properly. To find a battery disposal facility near you, visit http://www.rbrc.org/

For changing the battery on a Polar H7 module, see
https://support.polar.com/us-en/support/changing_battery_to_polar_h7_heart_rate_sensor

Additional Troubleshooting

• Which Polar heart rate modules work with Vernier heart rate sensors?
• Is it possible to order the receiver and transmitter portion of the Exercise or Hand-Grip Heart Rate Monitor separately?
• How can I improve the readings I get with the Exercise Heart Rate Monitor?
• How can I get better recordings using the Hand-Grip Heart Rate Monitor or Exercise Heart Rate Monitor
• The Hand-Grip Heart Rate Monitor or Exercise Heart Rate Monitor does not work with my other sensors, such as a temperature probe. What is the problem?
• How do I reset a Polar Transmitter Module (H7/H9/H10)

Specifications

• Battery Type: CR 2025 (user-replaceable)
• Battery Lifetime: 200 hrs
• Operating Temperature: -10 to 50 °C
• Radios: Bluetooth and 5 kHz RF transmission
• Wireless range:
  ⚬ RF Transmission: 80 to 100 cm
  ⚬ Bluetooth: 10 m or more unobstructed

Calibration

Calibrate? No. The Exercise Heart Rate Monitor does not need to be, nor can it be, calibrated.