Introduction
The ECG300GA is a 12-lead ECG signal collection and waveform printing device with a thermal printing system. It features a manual or auto mode for recording and displaying ECG waveforms, automatic measurement and diagnosis of ECG waveform parameters, and an optional interface language (Chinese/English) for database management.

2) jobs

• Synchronized collection for 12-lead ECG, adopting digital signal processing technology to obtain high-quality ECG waveforms via AC filtering, baseline filtering and EMG filtering of ECG signal.
• Display of 1/2/3 lead ECG, print mode, sensitivity, paper speed and filter state, etc. on one screen, convenient for contrastively diagnosis.
• Multiple printing methods and formats, including manual, auto 4*3, auto 3*4+1, auto 3*4, auto 2*6+1, auto 2*6, etc. The waveform and printing length can be adjusted, with timing printing function, which meets different requirements.
• With the functions of auto-analysis for auto diagnostic routine ECG parameters, providing measurement results and auto diagnostic result HR, P-R interval, P duration, QRS duration, Q-T interval, Q-T interval, Y axis, QRS axis, T axis, R(V5), S(V1), R(V5)+S(V1), etc. which reduces the doctor’s burden.
• Built-in memory stores up to 15 statuses (optional SD card, stores up to 50 statuses), convenient status review and statistics.
• Two-language (Chinese or English) report interface.

3) Power supply

• AC/DC, and in the optimal DC state, the built-in rechargeable lithium battery can work continuously for 8h, print up to 70 minutes and 175-ECG, meeting the conditions of home patient visit and body examination.

• Work environment

Temperature: 5℃ ~ 40℃
Relative Humidity: 25% ~ 80% (non-condensing)
Atmospheric Pressure: 700hPa ~ 1060hPa

• Transportation and storage environment

Temperature: -40℃ ~ +55℃
Relative Humidity: ≤95%
Atmospheric Pressure: 500hPa ~ 1060hPa

• Input mode: floating and defibrillation protection
• Frequency response: 0.05Hz ~ 150Hz(-3dB ~ +0.4dB)
• CMRR: >60dB, >100dB (add filter)
• Time constant: ≥ 3.2s
• Current patient leak:<10µA
• Voltage calibration: 1mV
• Sensitivity: 5, 10, 20 mm/mV ± 5%, Standard sensitivity: 10 mm/mV ± 2%
• Noise level: ≤ 15µV-p
• Input circuit current: ≤ 50nA
• Input resistance: ≥ 50MΩ
• Sampling resolution: 12 bits
• Safety Classification: Class Ⅰ, Type CF and Prove Application Part
• Recording mode: thermal printing system
• Auto log: Set log according to auto log format and method, automatically switch leads, measure and analyze.
• Rhythm record: Set the record according to the rhythm record format and method, automatically measure and analyze.
• Manual log: Set log according to log format manually converting.
• Sheet size: 80mm(W)×20m(L)
• Measurement parameters: HR, P-R interval, P duration, QRS duration, T duration, Q-T interval, Q-T interval, Y axis, QRS axis, T axis R(V5), S(V1), R(V5)+S(V1)
• Sampling frequency: 1000Hz
• Polarization voltage: ±500mV
• EMG interference filtering: 25Hz/35Hz(-3dB)
• AC Filter: 50Hz/60Hz(-20dB)
• Paper speed: 6.25, 12.5, 25, 50 mm/s, ±5%
• Power supply: AC: 100V~240V (50/60Hz) & DC: 7.4V/2000mAh rechargeable lithium battery
• Fuse specifications: Two AC time-delay fuses (φ5 x 20mm), T1.6AL250V
• Waterproof rating: IPX0
• Working mode: continuous working

accessories

• A lead cable
• A electrode
• Chest pole
• Thermal recording paper
• Power cord
• In ground wire
• User Manual