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Digital 3-channel Electrocardiograph EKG-903B

Digital 3-channel Electrocardiograph EKG-903B Details

Features:
12-lead simultaneous standard resting ECG
One-touch operation
Concept of floating input circuit meets IEC safety standard
High-resolution thermal printing array system
Frequency response is as high as 150Hz
Capable of printing continuously on channel trace and annotations including lead mark and parameter such as sensitivity, paper speed and filter operation status
High resolution digital filter inhibits baseline drift without affecting ECG waveform
Rechargeable battery supporting more than 50 patient examinations
Specification:

Safety standard
IEC class I, type CF

Input circuit
Floating; Protection against Defibrillator effect

Lead
Standard 12 Leads, Lead change automatically

Patient current leakage
<10μ A

Input impedance
≥ 10mΩ

Calibrating voltage
1mV± 3%

A/D conversion
12 bit

Frequency response
0.05Hz~150Hz (IEC)

Time constant
>3.2seconds

CMRR
>80dB
>100dB (with filter)

EMG filter
35Hz (-3dB) / 25Hz (-3dB)

Sensitivity
1/2, 1, 2 (cm/mV), Conversion Deviation≤ 5%

Recording system
Thermal-array
8 dots/mm ( vertical )
16 dots/mm ( horizontal, 25mm/sec )

Paper speed
25, 50mm/s± 3%

Recording paper
50mm, 20m, high-speed roll

Input circuit current
≤ 50nA

Power supply
AC: 220V / 110V, 50/60Hz

DC: 12V rechargeable battery

Skin voltage tolerance
± 300mV

Noise level
<15uVp-p

Dimensions
310× 230× 70mm

Dimension of packing
400× 280× 160mm

Weight
2.75kg