Here is the general procedure to follow when using the Hand-Grip Heart Rate Monitor: Hand-Grip Heart Rate
1. Connect the Hand-Grip Heart Rate Monitor receiver to the interface. 2. Start the data-collection software. 3. The software will identify the Hand-Grip Heart Rate Monitor and load a default data-collection setup. You are now ready to collect data. (Order Code HGH-BTA)
Data-Collection Software
The Hand-Grip Heart Rate Monitor measures a person’s heart rate by registering the This sensor can be used with an interface and the following data-collection software. small electrical signals carried across the surface of a person’s skin each time his or her heart contracts. This signal is measured at the surface of the skin by electrodes Logger Pro This computer program is used with LabQuest, LabPro, or Go!Link.
embedded in the hand grips of the Hand-Grip Heart Rate Monitor. By graphing this • Logger Lite This computer program is used with LabQuest, LabPro, or Go!Link.
signal, the heart rate can be determined. A sample graph is shown below: • LabQuest App This program is used when LabQuest is used as a stand-alone
Suggested Experiments
EasyData App This calculator application for the TI-83 Plus and TI-84 Plus can
be used with CBL 2, LabPro, and Vernier EasyLink. We recommend version 2.0 or newer, which can be downloaded from the Vernier web site,, and then transferred to the calculator. See the Vernier web site, for more information on the App and Program Transfer Guidebook. • DataMate program Use DataMate with LabPro or CBL 2 and TI-73, TI-83,
TI-84, TI-86, TI-89, and Voyage 200 calculators. See the LabPro and CBL 2 Guidebooks for instructions on transferring DataMate to the calculator. • Data Pro This program is used with LabPro and a Palm handheld.
rate returns to normal after exercise (recovery rate). • LabVIEW National Instruments LabVIEW™ software is a graphical
• Check for baroreceptor reflex; that is, changes in heart rate for a person when programming language sold by National Instruments. It is used with SensorDAQ reclined, sitting, and standing caused by the need for the heart to pump blood to and can be used with a number of other Vernier interfaces. See for more information. • Check a person’s heart rate before and after caffeine consumption. NOTE: This product is to be used for educational purposes only. It is not
• Check a person’s heart rate before and after eating. appropriate for industrial, medical, research, or commercial applications. • Check your own heart rate at different times of the day. • Monitor a person’s heart rate as his or her breath is held. Specifications
Receiver range
Collecting Data with the Hand-Grip Heart Rate Monitor
This sensor can be used with the following interfaces to collect data:
• Vernier LabQuestTM as a standalone device or with a computer • Vernier LabPro® with a computer, TI graphing calculator, or Palm® handheld This sensor is equipped with circuitry that supports auto-ID. When used with a good idea to gently wipe the electrodes clean using alcohol wipes. Do not LabQuest, LabPro, Go! Link, SensorDAQ, EasyLink, or CBL 2, the data-collection immerse the hand grips in solution, simply spray or wipe alcohol onto them. software identifies the sensor and uses pre-defined parameters to configure an 4. The receiver of the Hand-Grip Heart Rate Monitor will receive signals from other experiment appropriate to the recognized sensor. hand grips if they are within range; be sure to maintain a distance of at least 2 meters between other individuals that are monitoring heart rate. How the Hand-Grip Heart Rate Monitor Works
5. Interference from electrical devices, such as computer monitors, electronic The Hand-Grip Heart Rate Monitor consists of a set of hand grips and a plug-in exercise equipment (treadmills, stationary bicycles, etc.), televisions, TV receiver. The hand grips are held, one in each hand, by the individual whose heart antennas, and high voltage lines (both above and below ground) can result in poor rate is being monitored. The hand grips are marked for the right or left hand and each readings. Keep the receiver of the Hand-Grip Heart Rate Monitor as far away as has the necessary markings showing where the individuals’ fingers and palms should be placed. The left hand grip and the receiver are both marked with an alignment 6. With certain individuals, readings from the Hand-Grip Heart Rate Monitor may arrow. When collecting data, it is important that the arrow labels on each of these
take a minute or two to stabilize. In such cases, allow the readings to stabilize The plug-in receiver connects to any of the interfaces listed above. The transmitter detects each heart beat through the Warranty
electrodes on the two hand grips with ECG accuracy and Vernier warrants this product to be free from defects in materials and workmanship transmits the heart rate information to the plug-in receiver for a period of five years from the date of shipment to the customer. This warranty with the help of a low frequency electromagnetic field. The does not cover damage to the product caused by abuse or improper use. plug-in receiver wirelessly receives the transmission, and passes a 3-volt pulse for each heart beat detected to the Vernier interface. The reception range of the plug-in receiver In general, you can use the Hand-Grip Heart Rate Monitor as you would any other sensor connected to your interface. You can plot a pulse for each heart beat and analyze the time between the peaks to determine the heart rate. Often it is more convenient to use a program that simply displays the heart rate in beats per minute on the screen. Our data-collection programs perform this task for all of our interfaces. Do I Need to Calibrate the Hand-Grip Heart Rate Monitor? “No.”
The Hand-Grip Heart Rate Monitor does not need to be, nor can it be, calibrated. It provides very accurate heart rate values. Using a Chest Belt Transmitter
The Chest Belt Transmitter, which is ordered separately (Order Code CBT), works
in place of the hand grips, allowing a hands-free option of measuring heart rate. The
chest belt is worn on or below the chest and held in place by an elastic strap. Make
sure that the belt fits snugly around the chest and is resting directly against the Vernier Software & Technology
subject's skin. Make sure to re-wet the electrodes each time the belt is positioned. 13979 S.W. Millikan Way • Beaverton, OR 97005-2886 Toll Free (888) 837-6437 • (503) 277-2299 • FAX (503) 277-2440 Helpful Tips
Listed below are some tips to insure successful data collection. Rev. 5/9/07 Logger Pro, Logger Lite, Vernier LabQuest, Vernier LabPro, Go! Link, Vernier EasyLink and other marks shown are our 1. Make sure that the hand grips and the receiver are in alignment. The arrow trademarks or registered trademarks in the United States. symbol on the left hand grip and the receiver should be held in parallel alignment. CBL 2 and CBL, TI-GRAPH LINK, and TI Connect are trademarks of Texas Instruments. All other marks not owned by us that appear herein are the property of their respective owners, who may or may not be 2. Be sure to hold the receiver within 80 cm of the hand grips. This is the maximum affiliated with, connected to, or sponsored by us. transmission range of the transmitter in the chest belt. 3. Dirty electrodes on the hand grips can cause poor readings. In between uses, it is


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