Introduction

The device is an electrocardiograph which can collect 12-lead ECG signal simultaneously and print ECG waveform with thermal printing system. It features in, recording and displaying ECG waveform in auto / manual mode; measuring, analyzing and diagnosing ECG waveform parameters automatically; prompting for “Lead off” and “Lack of paper”; optional interface language (Chinese / English, etc.); built-in lithium battery, AC / DC; selecting rhythm lead freely to observe abnormal heart rhythm; case database management.

Functions

² 1)Adopt 10.1'' high-resolution color LCD, operate by full-touch screen and function bu ttons, convenient to use.

² 2)Sync collection for 12-lead ECG, support 12-lead and Cabrera-lead waveform display. Get high-quality ECG waveform via power frequency filter (50 / 60 Hz), baseline filter and EMG filter (25 / 35 Hz) of ECG signal.

² 3)Display 3 / 6 / 12 - lead ECG waveform, HR value, print mode, sensitivity, paper speed, filter state, clock, battery power, background grid, measured parameter and interpretation, etc. on one screen, and with prompt functions for lead - off, overload and system working state.

² 4)Power supply: AC / DC (which can adapt AC 50 / 60Hz), with built-in rechargeable lithium battery, charging circuit, perfect over-current and over-voltage protection circuit.

² 5)In optimal DC state, up to 10-hour standby time, continuous print for more than 3-hour, which meets the requirements of visiting a patient at home and body examination.

² 6)Built-in thermal printer, support multiple printing modes and formats, such as, auto M × N, M × N + 1, M × N + 2, rhythm M line and manual, etc. The contents including time, paper speed, sensitivity, calibration signal, lead name, filter state and patient information can be printed. The waveform length printed, measurement parameter output, diagnosis conclusion, superimposed QRS waveform, histogram, trend chart and interval list, etc. can be set. With the print functions (timing print and auto-print for arrhythmia, etc.), which meet different requirements.

² 7)With the functions of auto-measurement and auto-interpretation for routine ECG parameters, provide measured results and auto-diagnosis conclusions for HR, PR interval, P Duration, QRS Duration, QT / QTc interval, P / QRS / T Axis, R (V5), S (V1), R (V5) + S (V1) amplitude, etc. which reduces the doctor’s burden.

² 8)Built-in memory stores 4000 cases (data saving time: 10 s) at least, convenient for case review and statistic.

² 9)Historical cases can be reviewed, inquired, modified, transmitted, printed, lead corrected, the cases can also be exported to other electronic file formats (dat, pdf, xml, bmp, jpeg, etc.)

² 10)Chinese / English operating interface, the report in corresponding language can be printed; built-in virtual keyboard, support Chinese / English input method.

² 11)Support external USB standard keyboard, mouse, scanner and printer.

Performance

Ø 1)Input mode: floating and defibrillation protection

Ø 2)Lead: standard 12-lead

Ø 3)Patient leak current: < 10 µA

Ø 4)Input impedance: ≥ 2.5 MΩ

Ø 5)Frequency response:

Nominal input amplitude    Input frequency and waveform    Relative output response

1.0    0.67 Hz ~ 40 Hz, sinusoidal    ±10 %a

0.5    40 Hz ~ 100 Hz, sinusoidal    +10 %, -30 %a

0.25    100 Hz ~ 150 Hz, sinusoidal    +10 %, -30 %a

0.5    150 Hz ~ 500 Hz, sinusoidal    +10 %, -100 %a

1.5    ≤1 Hz ,200 ms, triangular    +0 %, -10 %b

a relative to 10 Hz output   b relative to 200 ms output

Ø 6)Time constant: ≥ 3.2 s

Ø 7)CMRR: > 105 dB

Ø 8)Filter: power frequency (AC 50 / 60 Hz), EMG (25 Hz / 35 Hz (-3 dB)) and baseline drift

Ø 9)Recording mode: thermal printing system

Ø 10)Paper size: 210 mm (W) × 20 m (L), high-speed thermal paper

Ø 11)Paper speed: 12.5 mm/s, 25 mm/s, 50 mm/s, error: ± 5 %

Ø 12)Gain (sensitivity): 5, 10, 20 mm / mV, accuracy: ± 2 %

Ø Standard sensitivity: 10 mm/mV ± 0.2 mm/mV

Ø 13)Record mode: auto, rhythm and manual record

Ø 14)Measurement parameters: HR, P - R interval, P Duration, QRS Duration, T Duration, Q - T interval, Q - Tc, P Axis, QRS Axis, T Axis, R (V5) amplitude, S (V1) amplitude, R (V5) + S (V1) amplitude

Ø 15)Safety class: class I, defibrillation-proof type CF applied part

Ø 16)Polarizing voltage: ± 610 mV

Ø 17)Noise level: ≤ 12 µVp-p

Ø 18)Sampling frequency for ECG signal input: 32 kHz

Ø 19)Sampling frequency for waveform data processing: 1 kHz

Ø 20)Sampling accuracy: 24 - bit

Ø 21)Minimum detection signal: a 10 Hz, 20 µV (peak - peak value) sinusoidal signal can yield a visual recorded deflection.

Ø 22)Pacemaker detection channel: II

Ø 23)Accuracy of input signal reproduction: ± 5 %

Ø 24)Amplitude quantization: ≤ 5µV/LSB

Ø 25)Time deviation in each channel: <100 µs

Ø 26)Power supply:

AC: 100V ~ 240V (50 / 60 Hz)

DC: 14.8 V / 5200 mAh rechargeable lithium battery

Ø 27)Degree of protection against ingress of liquid: IPX0

Ø 28)Working mode: continuous operation

Accessories

Standard:

ü One lead cable

ü One limb electrode

ü One chest electrode

ü One thermal recording paper

ü One power cord

ü One earth wire

ü One User Manual

Physical characteristic

Operating:

v a) Environment temperature: 5 ℃ ~ 40 ℃

v b) Relative humidity: 25 % ~ 95 % (non - condensing)

v c) Atmospheric pressure: 700 hPa ~ 1060 hPa

Transport and storage:

v a) Environment temperature: - 20 ℃ ~ + 55 ℃

v b) Relative humidity: ≤ 95 %

v c) Atmospheric pressure: 500 hPa ~ 1060 hPa

v Dimension: 340 mm (L) × 320 mm (W) × 86 mm (H)

v Weight: 5 kg

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