Product Details

CMRR 3.0 Tester
Brand Name whaleteq
Place of Origin Taiwan
Model Number CMRR3.0
Power Other, ±1% for amplitudes of 0.5mVpp or higher
Usage Other, ECG performance testing

Product Features

The CMRR tester combining accuracy, convenience and test automation all together.
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, compliance and production line testing.


  • CMRR Tester designed for diagnostic ECG, monitoring ECG, ambulatory ECG and EEG monitor

  • Extreme shielding structure to avoid internal and external noise interference

  • Built-in calibrated sine wave generator and Vc voltage measuring circuit to assure output accuracy level

  • Exclusive shielding covers can be added for higher CMRR requirement

  • Touch screen maximizes the test efficiency in standalone operation

  • PC software operation allows to control and conduct test via mouse clicks

  • Optional Standard Assistant software pack simplifies the medical standard with test sequences, options, parameters and pass criterions

  • Software Development Kit (SDK) assists user to develop customized or automated test software with less efforts

ItemsOptionsSpecifications
Supply voltage0.5 / 2.828 / 20 / 2 / (70.71) (Vrms)±1%*
CM point voltage1.414 / 10 / 1 / (35.355) (Vrms)±1% (0.25Vrms ±2%)
Frequency50 / 60 / 100 / 120 (Hz)±1%
Electrode with ImpedanceChange electrode via the touch screen of CMRR 3.0+None / RA / LA / LL / V1 / V2 / V3 / V4 / V5 / V6 / ALL
Electrode without ImpedanceChange electrode via the touch screen of CMRR 3.0+RA / LA / LL / V1 / V2 / V3 / V4 / V5 / V6
Imbalance impedance, R51kΩ51kΩ ±1%
Imbalance impedance, C47nF47nF ± 5%
DC offsetInternal battery powered, can be added on RA / LA / LL / V1~V6300mV ± 1%
Up to 40hrs with intermittent use
100pF capacitorUse 11:1 (110MΩ:10MΩ) voltage divider to measure indirectly100pF ± 5%
EnvironmentIntended for normal laboratory environment. The selection of critical components is known to be stable in the range shown. The 110MΩ divider may be affected by high humidity in excess of 85%.15 - 30°C
10 - 75% RH


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