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-ECG/EKG Testing

CMRR 2.0

Common mode rejection ratio tester. Compliant with IEC 60601-2-25, IEC 60601-2-27, IEC 60601-2-47, IEC 60601-2-26, YY1079, YY1139, YY0782, YY0885, ANSI/AAMI EC11, ANSI/AAMI EC13. Applicable for R&D and compliance testing.

  • Common Mode Rejection Ratio tester for all types (1/3/5/12 leads) ECG
  • Test circuits meeting the standard's requirement
  • Custom-made transformer to supply the required 20 Vrms
  • Double shield construction built according to standards
  • ±300 mV DC offset produces low noise and high precision accuracy voltage
Item Specification   Design Capability  
Input transformer Ratio not lower than 4:1 (e.g. drive voltage 5Vrms or less is required). -
Voltage divider Ratio accuracy ±2% ±1%
Series capacitance 100pF ± 5% ±5%
Imbalance impedance, R 51kΩ ±1% ±0.5%
Imbalance impedance, C

47nF 47nF ± 5%

DC offset

300mV ± 1% Up to 50hrs with intermittent use


15-30°C, 10-75% RH


ECG CMRR Test Method

Release Date:2014/11/05

ECG CMRR Measurement Theory

Release Date:2014/11/05

WhaleTeq ECG Test Solution

Release Date:2014/11/05

CMRR 2.0 Test System
Model No. Description
CMRR 2.0 Common mode rejection ratio tester, including one CMRR ECG breakout box (BB-C2) and 11 compound terminals
Optional Accessory
Model No. Description
BB-C1 ECG Breakout Box (General purpose ECG test and for ANSI/AAMI EC11, EC13, IEC60601-2-47, China YY1139, China YY1079 and China YY0885 CMRR tests)
Optional Calibration Service and Warranty Extension
Model No. Description
C3 Provides (3) years of calibration service coverage. WhaleTeq equipment can be calibrated to original performance on the basis of (1) year interval.
R3 Extend the product warranty from (1) year to (3) years.

Tel:+886-2-2596-0701   Fax:+886-2-2596-0702 E-mail:
Address : 9F, No.27, Minquan W. Rd., Zhongshan Dist., Taipei City 10452, Taiwan
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