Main Content Summary

1. Operation & Safety Notice
Read this manual carefully before use. Unauthorized modification or copying is prohibited.

Safety Icons (Danger, Warning, Attention, Notice).

This device complies with IEC60601-1, Type CF, Class I, and is defibrillator-protected.

Do not use in flammable gas environments or during MRI examinations.

Original accessories must be used. Non-professionals are prohibited from disassembling the device.

2. Device Overview
This device records ECG signals and features automatic analysis, high-resolution printing, and 12-lead simultaneous acquisition.

Powered by AC power and a built-in lithium battery.

Note: A normal ECG does not necessarily mean there is no heart disease; other tests should be performed in conjunction with the device.

3. General Information
This device includes the LCD screen, keypad, recorder, patient cable connector, and power connector.

LCD Display: Patient ID, gender, age, heart rate, battery capacity, system time, operating mode, etc.

4. Operation Preparation
Connect the power supply (three-core power cord, must be grounded).

Install the recording paper (80mm thermal paper).

Connect the patient cable (placement and color coding of limb and chest leads).

Check the environment, power supply, grounding, electrode connections, etc. before powering on the device.

5. Operation Instructions
Four operating modes:

Manual Mode

Auto 3s Mode

1-channel 1-minute Mode

Rhythm Analysis Mode

Menu settings: Filtering, waveform speed/gain, lead order, system settings, etc.

6. Daily Maintenance
Battery charging and replacement (recommended every three months).

Notes on recording paper usage and storage.

Equipment cleaning, patient cable inspection, thermal print head maintenance, fuse replacement, etc.

7. Troubleshooting
Common Problems:

No waveforms on certain leads

Printed waveforms are broken

Control panel malfunctions

AC interference, myoelectric interference, baseline drift, etc.

Provides inspection steps and solutions.

8. Technical Specifications
Input impedance ≥50MΩ

Common mode rejection ratio >100dB

Frequency response 0.05Hz~150Hz

Power supply: AC 100~240V, DC 14.8V lithium battery

Operating temperature: +5°C~+40°C

9. Appendices
Appendix A: Minnesota Code ECG Classification System.

Appendix B: Diagnostic Code Table (e.g., sinus rhythm, atrial hypertrophy, myocardial infarction, etc.).