Disconnect the battery pack and measure its standing voltage. If the voltage sits below its nominal cutoff threshold, the protection circuit module (PCM) within the pack may have locked out due to deep discharge.
The screen displays heavy 50/60Hz interference, muscle tremor noise, or a continuous flatline despite a simulator being connected. Diagnosis & Fixes carewell ecg 1101 service manual fix
Poor grounding. Connect the grounding cable to a dedicated earth ground. Disconnect the battery pack and measure its standing voltage
Ensure the patient remains still . The ECG-1101 features automatic baseline adjustment to help stabilize recordings . muscle tremor noise