About Us

CardioTech Monitoring Systems is a Holter monitor scanning, analyzing and reporting company. We specialize in 24 and 48 hour Holter scans using Philips Zymed DigiTrak XT Holter monitors. We provide service to physician groups and other healthcare organizations utilizing the latest Philips™ technology in our Holter monitors and in the scanning software we use

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Our Services

If you are having difficulty with your current Philips™ Zymed Holter system and would like some additional training and support beyond what Philips provided with the initial installation, you need a Holter consultation.

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Philips Zymed Error Code 501,201, 202, 204, 214, 251 and 257 The following error codes can occasionally be displayed on the LCD display on the DigiTrak XT 48 Hour Holter monitors. Error Message Error: ### - Configuration read failure, where ### is between 201 and 202, 204 and 214, and 251 and 257 inclusive. Causes and/or Message location The firmware has encountered a problem with reading the external configuration file. Resolution - Reload the recorder’s upgrade file. - If problem persists, contact Philips Customer Service. Error Message Error: 501 - External flash failure. - The firmware has encountered a problem trying to access the external flash. Causes and/or Message location Message(s) can be displayed at various points during recorder operation. Resolution - Remove and reinsert the batteries. - If problem persists, contact Philips Customer Service.

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Contact Us

CardioTech Monitoring Systems
PO Box 829
Lynden, WA 98264

p. 1.360.354.8641
f. 1.360.354.8649