CMRR tester

CMRR 3.0+

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.

OVERVIEW

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

SPECIFICATION

Items Options Specifications

Supply voltage 0.5 / 2.828 / 20 / 2 / (70.71) (Vrms) ±1%*

CM point voltage 1.414 / 10 / 1 / (35.355) (Vrms) ±1% (0.25Vrms ±2%)

Frequency 50 / 60 / 100 / 120 (Hz) ±1%

Electrode with Impedance Change electrode via the touch screen of CMRR 3.0+ None / RA / LA / LL / V1 / V2 / V3 / V4 / V5 / V6 / ALL

Electrode without Impedance Change electrode via the touch screen of CMRR 3.0+ RA / LA / LL / V1 / V2 / V3 / V4 / V5 / V6

Imbalance impedance, R 51kΩ 51kΩ ±1%

Imbalance impedance, C 47nF 47nF ± 5%

DC offset Internal battery powered, can be added on RA / LA / LL / V1~V6 300mV ± 1%

Up to 40hrs with intermittent use

100pF capacitor Use 11:1 (110MΩ:10MΩ) voltage divider to measure indirectly 100pF ± 5%

Environment Intended 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

*Require to measure with the multimeter of higher accuracy.