Summary of Contents for Technogym 0WR00914AA
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Page 3: Table Of Contents
HR Noise Detector: quick reference – rev. 1.1 Contents 1. INTRODUCTION ..............................1.1 2. TECHNICAL NOTES ON CARDIO RECEIVERS ..................... 2.1 2.1. GENERAL INFORMATION ..........................2.1 2.2. ELECTROMAGNETIC INTERFERENCE FIELDS ..................2.2 2.3. MECHANICAL VIBRATIONS ........................2.2 2.4. POSITION OF THE RECEIVER ........................2.3 3. - Page 4 HR Noise Detector: quick reference – rev. 1.1 Page intentionally left blank. Page ii...
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Page 5: Introduction
HR Noise Detector: quick reference – rev. 1.1 1. INTRODUCTION Electromagnetic interference are increasing due to the increase of electronic equipments in general, and the widest presence of our equipment on many facilities (hospitals, private customers…). This could affect, most of the time, correct heart rate reception on our machines and it could become really difficult to find out the real cause/source of the problem. -
Page 7: Technical Notes On Cardio Receivers
2.1. GENERAL INFORMATION Technogym utilizes Polar or Salutron technology for measuring the heart rate frequency of the person training on the machine. The system consists of: • a transmitter (Chest Belt), worn by the person training on the machine, which uses 2 electrodes to detect the electrical activity of the heart, and transmits the measured heart rate, by sending an electromagnetic signal at a frequency of 5 KHz. -
Page 8: Electromagnetic Interference Fields
HR Noise Detector: quick reference – rev. 1.0 2.2. ELECTROMAGNETIC INTERFERENCE FIELDS There are 2 types of problems which can typically occur on the heart rate signals: 1) Electromagnetic interference: caused by disturbances from sources of electromagnetic noise. This problems could cause: •... -
Page 9: Position Of The Receiver
HR Noise Detector: quick reference – rev. 1.1 2.4. POSITION OF THE RECEIVER Carefully position the receiver according to the specifications below: • the coil must be directed toward the user; • the coil must be positioned well away (even a few centimeters) from the LEDs; •... -
Page 10: How To Use The Noise Detector
HR Noise Detector: quick reference – rev. 1.0 3. HOW TO USE THE NOISE DETECTOR 3.1. DEVICE MAIN PARTS Indentification label Coil side/ position Red LED Switch on/off button If you tap your finger on the Noise Detector casing, when device is ON, Red LED will blink at each hit. -
Page 11: Noise Detector Saturation
HR Noise Detector: quick reference – rev. 1.1 This Noise Detector causes the LED to light for every heart beat and/or transient 5Khz frequency detected: in this way it is possible to determine whether there is electromagnetic noise, and identify its source. -
Page 12: Possible Solutions In The Presence Of Electromagnetic Fields
HR Noise Detector: quick reference – rev. 1.0 got an additional software filter that make them less sensible. So if machines minimum distance is respected, no cross talking issues will be present. From the other side we need such sensibility on Noise Detector, to face out all the possible issues (worst condition). Find more detailed information, about machines required minimum distance, on all Excite Service manuals. -
Page 13: Example Of Usage: Case History
HR Noise Detector: quick reference – rev. 1.1 3.8. EXAMPLE OF USAGE: CASE HISTORY At a private house: • Problem: Synchro Excite has got wrong heart rate beats during the training, usually after 10, 15 minutes of training. Wrong because higher than normal (suddenly HR freq. peaks). - Page 14 HR Noise Detector: quick reference – rev. 1.0 Page intentionally left blank Page 3.8...
- Page 15 HR Noise Detector: quick reference – rev. 1.0 TECHNOGYM S.p.A. Via G. Perticari, 20 47035 Gambettola (FC) ITALIA Tel.: +39-0547-650638 Fax: +39-0547-650150 e-mail: service@technogym.com...