ECG-5512G Device
Description
All Twelve Leads, in a Single Acquisition
Every standard lead is acquired simultaneously at 4,000 Hz per channel, so one acquisition delivers a complete resting ECG. Review the full twelve-lead waveform on screen before using any paper, and follow either Wilson or Cabera lead sequence.
MAN, AUTO, R-R and STOR modes let the operator match the acquisition to the exam: routine printed report, rhythm strip or paper-free record.
Signal Integrity Where It Matters
With the AC filter engaged, common-mode rejection reaches ≥120 dB, keeping mains interference out of the trace. ADS baseline-drift suppression works alongside selectable AC (50/60 Hz) and EMG (25/45 Hz) filters.
A floating input stage with ≥50 MΩ input impedance and system noise below 30 μVp-p helps preserve the fine detail that matters.
Touch Control, Thermal Print Output
A 9-inch 800 × 480 colour touch LCD and 11 hard keys put patient data, filters and recording format at your fingertips—set them on screen or from the keypad. Four interface themes and five backlight levels adapt the display to different rooms and working distances.
Recording is handled by a thermal dot-matrix printer on 210 mm × 30 m roll paper, with 3ch+++, 6ch, 6ch+ or 12ch layouts, 6.25 to 50 mm/s paper speed and 2.5 to 40 mm/mV sensitivity.
Cases That Stay with the Department
Keep up to 400 patient cases in internal memory—and add an SD card when you need more room. Move files to a USB drive or to PC ECG management software through the USB 2.0 host port, and print stored reports on plain A4 paper with a supported HP PCL5 printer.
A barcode scanner connected to the UART port enters patient numbers in a single scan, so a screening list and its recordings stay matched.
Features
- Twelve-lead synchronous acquisition at 4,000 Hz per channel, with pacing-pulse detection.
- Four working modes: MAN, AUTO (review or real-time), R-R rhythm and STOR.
- Recording layouts 3ch+++, 6ch, 6ch+ and 12ch, with short, normal, long and long+ auto length.
- 9-inch 800 × 480 colour touch LCD with 11 keys, four themes and five backlight levels.
- ADS baseline-drift filter plus AC 50/60 Hz and EMG 25/45 Hz filters; CMRR ≥ 120 dB.
- Defibrillation-protected CF applied part with floating input; patient leakage current < 10 μA.
- Thermal dot-matrix recorder on 210 mm × 30 m roll paper, 6.25 to 50 mm/s, 2.5 to 40 mm/mV.
- 400 patient cases on board, SD card optional, with USB export to drive or PC software.
- USB link to HP PCL5 A4 printers; UART port for barcode-based patient ID entry.
- 3.0 kg 310 × 278 × 76 mm with carry handle; 4,400 mAh battery for 8 hours of cordless use.
Specifications
Display
| LCD | 9-inch colour touch LCD, 800 × 480 graphic |
| Backlight | Five brightness levels |
| Colour themes | Four interface themes |
Keypad and Lead View
| Keypad | 11 keys, plus touch input |
| Lead view | Simultaneous twelve-lead waveform display |
ECG Acquisition
| Leads | Standard twelve leads, synchronous acquisition |
| Input circuit | Floating, protection against defibrillator effect |
| Input impedance | ≥50 MΩ |
| Electrode DC current | ≤0.1 μA |
| Input dynamic range | ±5 mVp-p, DC bias ≥ ±620 mV |
| CMRR | ≥120 dB (with AC filter) |
| Patient leakage current | <10 μA |
| Calibration voltage | 1 mV ±5% |
| Sampling rate | 4,000 Hz per channel |
| Heart rate range | 30–300 bpm (±1 bpm) |
| Sensitivity | 2.5 / 5 / 10 / 20 / 40 mm/mV (±3%), Auto |
| Paper speed | 6.25 / 12.5 / 25 / 50 mm/s (±3%) |
| System error | < ±5% or < ±40 μV |
| System noise | <30 μVp-p |
| Inter-channel interference | <2% |
| Lag | <0.5 mm |
| Pacing pulse display | Amplitude 2–250 mV, width 0.1–2.0 ms |
Filters
| AC filter | 50 Hz / 60 Hz / off |
| EMG filter | 25 Hz / 45 Hz / off |
| Baseline drift | ADS filter |
Recorder
| Recording method | Thermal dot-matrix |
| Recording format | 3ch+++, 6ch, 6ch+, 12ch |
| Paper | 210 mm × 30 m, roll thermal paper |
Storage & Connectivity
| Patient cases | 400 cases in internal memory, SD card optional |
| USB host | USB 2.0, FAT32 USB drive |
| UART | 115 kbps, 3.3 V level; barcode scanner and factory service |
| External printing | USB printer, HP PCL5 |
| PC software | ECG management software over USB |
Power
| AC input | 100–240 V (±10%), 50/60 Hz (±1 Hz), 60 VA |
| Battery | 14.4 V / 4,400 mAh lithium-ion |
| Charging current | 1,300 mA, constant current / constant voltage |
| Charge cycles | Not less than 500 |
| Battery operation | 8 hours from a full charge |
| Fuse | TZAH/250 W, 5 × 20 mm |
Physical & Environmental
| Dimensions | 310 × 278 × 76 mm |
| Weight | 3.0 kg |
| Operating temperature | +5 °C to +40 °C |
| Operating humidity | 25%–80% RH, non-condensing |
| Operating pressure | 700–1,060 hPa |
| Storage / transport temperature | -20 °C to +55 °C |
| Storage / transport humidity | 25%–93% RH |
Safety & Compliance
| Protection class | Class I, internally powered equipment |
| Applied part | Type CF, defibrillation-proof |
| Standards | IEC 60601-1, IEC 60601-2-25, IEC 60601-1-2 |
| EMC | CISPR 11 Group 1, Class A |
| Liquid protection | Ordinary equipment, no water protection |
Clinical Applications
From routine outpatient ECG rooms and bedside emergencies to paediatric cardiology, community screening and clinical teaching, the ECG-5512G adapts to the setting at hand.
Comprehensive score