This 3-channel ECG machine offers a compact and ergonomic design for ease of operation and portability. It features a three-channel format recording with interpretation, multiple working modes, and high-accuracy digital filtering. The device displays detailed ECG information on a 5-inch color LCD and can store up to 250 ECG cases. It is adaptable to a wide range of power supplies and includes a rechargeable battery for extended use, along with communication interfaces for optional connectivity.
Model-specific documentation
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Document status · English
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PARAMETER | SPECIFICATION |
|---|---|
Lead | Standard 7 leads |
Lead acquisition | 12bit/1000Hz (synchronously 7 leads) |
Work mode | Auto, Auto 2, Man, Analysis |
Filter | AC
Filter: 50Hz / 60Hz EMG
Filter: 25Hz/45HZ Anti -
Drift
Filter: 0.15Hz (Adaptive) |
CMMR | ≥ 100dB (with AC Filter) |
Input Circuit | Floating: Protection circuit against Defibrillator effect |
Input impedance | ≥ 50M Ω |
Input circuit current | ≤ 0.05μ A |
Patient current leakage | <10μ A |
Calibrating voltage | 1mV± 2% |
Voltage tolerance | ≤± 500mV |
Time constant | ≤ 3.2s |
Frequency response | 0.05~160Hz ( - 3db) |
Noise level | <15μ Vp - p |
Inter - channel interference | ≤ 0.5mm |
Sensitivity | Auto, 2.5, 5, 10, 20, 40mm/mV |
Recording mode | 1ch+V, 3ch, 3ch+V |
Paper speed | 6.25, 12.5, 25, 50mm/s (± 3%) |
Paper | 80mmx20m roll paper |
Communication | Rs232 / USB port |
Power supply | AC - 110 - 230V, 50 / 60Hz DC: Rechargeable Ni - MH battery |
Dimension and Weight | 260mmx217mmx58mm/1.4kgs |
Buyer decision support
The ECG-3G3 is the compact HQS three-channel ECG machine for clinics that want a portable resting ECG with printed traces. It acquires the standard 7 leads synchronously at 12 bit / 1000 Hz and prints in 1ch+V, 3ch or 3ch+V format on 80 mm × 20 m roll paper at 6.25, 12.5, 25 or 50 mm/s. Work modes are Auto, Auto 2, Manual and Analysis (arrhythmia analysis), with sensitivity Auto, 2.5, 5, 10, 20 and 40 mm/mV. A 5-inch 800 × 480 colour LCD shows the ECG, and up to 250 cases can be stored. Signal data: frequency response 0.05–160 Hz (−3 dB), noise <15 μVp-p, CMRR ≥100 dB with the AC filter, input impedance ≥50 MΩ, AC filter 50/60 Hz, EMG filter 25/45 Hz and an adaptive 0.15 Hz anti-drift filter, with a floating input protected against defibrillation. It runs on AC 110–230 V, 50/60 Hz or a rechargeable Ni-MH battery for more than 4 hours, measures 260 × 217 × 58 mm and weighs 1.4 kg. Choose it for portable three-channel work; if you want six channels printed at once, compare the ECG-6G6.
| Decision factor | Published for this model | Confirm before order |
|---|---|---|
| Leads and recording | Standard 7 leads, 12 bit / 1000 Hz synchronous acquisition; recording 1ch+V, 3ch, 3ch+V; paper speed 6.25, 12.5, 25, 50 mm/s (±3%); 80 mm × 20 m roll paper | Ask how many paper rolls are supplied and where replacement paper can be sourced. |
| Modes and display | Auto, Auto 2, Manual, Analysis (arrhythmia analysis); sensitivity Auto, 2.5, 5, 10, 20, 40 mm/mV; 5-inch 800 × 480 colour LCD; 250 cases stored | Ask whether the interpretation is set up for veterinary patients and how stored cases are exported. |
| Signal quality and filters | Frequency response 0.05–160 Hz (−3 dB); noise <15 μVp-p; CMRR ≥100 dB (with AC filter); input impedance ≥50 MΩ; input circuit current ≤0.05 μA; patient leakage current <10 μA; time constant ≤3.2 s; inter-channel interference ≤0.5 mm; AC filter 50/60 Hz; EMG filter 25/45 Hz; anti-drift 0.15 Hz (adaptive); floating input with defibrillator protection | Ask which filters are on by default and whether they are printed on the report. |
| Power and size | AC 110–230 V, 50/60 Hz; rechargeable Ni-MH battery, continuous work over 4 h; 260 × 217 × 58 mm; 1.4 kg | State your plug type. |
| Configuration and options | Standard: main unit, veterinary patient cable with electrodes, grounding cable, 2 fuses, power cord, adapter. Optional: laser printer connection, U disk, PC ECG management software; RS232 / USB communication | List the options you want quoted, and ask which electrode clips are supplied for small patients. |
Prepared by HQS Medical Product Team · Documentation reviewed:
Source: ECG-3G3 3-channel ECG Machine product page. Verify the final configuration, documents and destination-market requirements in the quotation and supplied manual.
How HQS handles warranty, spare parts and repairs for this model.
