Revision L MAC™ 3500 Resting ECG Analysis System 4-272021337-036Troubleshooting: Equipment ProblemsEquipment ProblemsECG Data NoiseIf the acquired ECG data displays unacceptable noise levels: When troubleshooting noise or signal quality, be sure the problem is not beingcaused by poor skin preparation, or placement and condition of electrodes.Careful skin preparation is the key to an interference-free ECG. Signal quality isindicated using Hookup advisor. Click here to learn more about Hook-upAdvisor. Hookup Advisor can be turned on or off in the ECG menu.Select System Setup ECG ECG Acquisition. Check for defective or date expired electrodes. Check for defective, broken, or disconnected leadwires. Run the Acquisition Module Tests in the Diagnostic menu and make sure alllead wires pass the noise test.
