WHALETEQ CMRR 3.0E Common Mode Rejection Ratio Tester User Manual

: June 13, 2024
: WHALETEQ

Table of Contents

CMRR 3.0E Common Mode Rejection Ratio Tester
Product Information
Product Usage Instructions
LCD Display
Connection and Power
Measurement Points
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

CMRR 3.0E Common Mode Rejection Ratio Tester

Product Information

The CMRR 3.0E is a Common Mode Rejection Ratio Tester designed
for IEC80601-2-26:2019 compliance. It is a registered trademark of
WhaleTeq Co. LTD. The tester is used to measure the common mode
rejection ratio of electronic devices.

The product model is CMRR 3.0E and the user manual version is
V1.0.7.3. The latest update to the user manual was made on
September 16, 2022.

Product Usage Instructions

LCD Display

5.1.1 LCD: The LCD display shows the standard voltage,
frequency, impedance, and DC offset of the device under test. Use
the Coarse and Fine buttons to adjust the displayed values. The
default value is 70.71 Vrms.

Connection and Power

5.2.1 USB: Connect the device to a PC using the USB cable
provided.

5.2.2 DC 12V: Connect the power supply to the device using a DC
12V power adapter.

5.2.3 Vc: Connect the Vc terminal to the common mode point of
the device under test.

5.2.4 Vs: Connect the Vs terminal to the power supply ground of
the device under test.

5.2.5 Monitor: Use this terminal for monitoring purposes.

Measurement Points

6 CM Point: Connect the RA, LA, LL, RL, and V1~V6 terminals of
the device under test to the corresponding measurement points on
the CMRR 3.0E.

6.1.1 Standard: Set the standard voltage, frequency, inner
shield (Vc), electrode with impedance, and DC offset according to
the IEC-2-26 standard.

Note: For detailed instructions on specific functions and
features, please refer to the CMRR 3.0E User Manual.

CMRR 3.0E | User Manual
WHALETEQ

Common Mode Rejection Ratio Tester for IEC80601-2-26:2019
CMRR 3.0E
2022-09-16 PC V1.0.7.3
1

CMRR 3.0E | User Manual
Copyright (c) 2013-2022, All Rights Reserved. WhaleTeq Co. LTD No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form, or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of WhaleTeq Co. LTD. Disclaimer WhaleTeq Co. LTD. provides this document and the programs “as is” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose. This document could contain technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in future revisions of this document. WhaleTeq Co. LTD. is under no obligation to notify any person of the changes. The following trademarks are used in this document:
is a registered trademark of WhaleTeq Co. LTD All other trademarks or trade names are property of their respective holders.
2

1 2 3

4 CMRR

5

5.1.1 5.1.2 5.1.3 5.1.4

LCD Coarse Fine 70.71 Vrms

5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 5.2.7 5.2.8

USB DC 12V Vc Vs Monitor

5.3.1 5.3.2
6

CM Point RA/LA/LL/RL/V1~V6

6.1.1 6.1.2

CMRR 3.0E | User Manual
5 6 7
8
10
10 11 11 11
11 11 12 12 12 12 12 12
12 13
13
13 16
3

6.2.1 6.2.2

CMRR 3.0E PC

7 Software Development KitSDK

8

9

10

CMRR 3.0E | User Manual
17 18
21 21 21 22

11 CMRR 3.0E

22

12

23

13

23

14

24

4

CMRR 3.0E | User Manual
1 CMRR 3.0E IEC80601-2-26:2019
– EEG(IEC80601-2-26:2019) 2 Vrms 50 Hz, 60 Hz, 100 Hz 120 Hz
– Ct Cx 100pF – (Vs) 100 pF
(Vc) Ct Vc Vs – ±150mV – MCU
– Vs, Vc, Monitor GND
Monitor Vc 100 pF 50/60/100/120Hz 10Vrms 11:1110M10M 1/11, Vc/11 Vrms – – USB CMRR 3.0E CMRR 3.0E PC (SDK) –
5

CMRR 3.0E | User Manual
2 CMRR 3.0E 2-1 Ct Cx (Stray)
2-1, CMRR 3.0E : 1 2 2A 3 150 mV 4 5 6 () 6A () 7 (Vs, Vc) 8 (,USB) 9 MCU () 10 *6 6A
6

CMRR 3.0E | User Manual
3
ECG : (1) ECG CMRR 3.0E (2) CMRR 3.0E GND () EEG (3)
3-1
3-1, (1) CMRR3.0E 3-4
3-4, CMRR 3.0E
7

CMRR 3.0E | User Manual
(2) Vc() Vc Vs 2 V (Vc=1 V)Vc 1% CMRR 3.0E 3-5 Vc 1%

4 CMRR

3-5, CMRR 3.0E

CMRR 100.017 V 100.001 V 16mV

(CMRR)

dB 100 100,000 40dB 100dBCMRR 60dB 1000 1000 60dB CMRR +100 V 10mV 16mV 10 60dB CMRR 0.1

50/60HzCMRR

CMRR 1k

8

CMRR 3.0E | User Manual
100pF 50/60Hz 30M 100pF (common mode point) Vc 10Vrms 10M 1000:1 100M/3pF 100M/3pF 5
WhaleTeq CMRR 3.0E 110M/10M 11:1 100pF Vc Vc
100pF Vc
CMRR 3.0E 20 Vrms, 2.828 Vrms, 0.5 Vrms EEG (IEC80601-2-26) 2 Vrms
CMRR 10K / /47nF EEG CMRR 3.0E MCU
IEC 80601-2-26 ±150mV CMRR 3.0E MCU +/- 150mV +/- 150mV CMRR 3.0E 40 CMRR 3.0E
9

5

CMRR 3.0E | User Manual

CMRR 3.0E 5-1LCD : 5-1, CMRR 3.0E
CMRR 3.0E
5.1.1 LCD Standard ()Voltage ()Frequency () Impedance ()DC Offset () : Voltage 20/2.828/0.5/2.0 Vrms
10

CMRR 3.0E | User Manual
5.1.2 Coarse LCD Ct Cx 100pF pF pF 5.1.3 Fine LCD Ct Cx 100pF pF 5.1.4 70.71 Vrms Coarse 6 70.71 Vrms manual 70.71 Vrms CMRR 70.71 Vrms
CMRR 3.0E 5-2:
6 5-2, CMRR 3.0E USB 5.2.1 CMRR 3.0E 5.2.2 USB PC CMRR 3.0E PC CMRR 3.0E SDK CMRR 3.0E
11

CMRR 3.0E | User Manual
5.2.3 DC 12V CMRR 3.0E DC 12V 5.2.4 DC 12V 5.2.5 Vc CMRR 3.0E Vc 5.2.6 Vs CMRR 3.0E 5.2.7 Monitor 11:1 Vc 11 5.2.8 () 3-1
CMRR 3.0E 5-3
5-3, CMRR 3.0E 5.3.1 CM Point Vc CMRR 3.0E () ()
12

CMRR 3.0E | User Manual
5.3.2 RA/LA/LL/RL/V1~V6 6
CMRR 3.0E DC 12V DC 12V On CMRR 3.0E LCD 6.1.1 Standard/Supply Voltage/Frequency/Inner Shield(Vc)/Electrode with Impedance/DC offset 6.1.1.1 Standard() Standard IEC-2-26
6-1, “Standard” 12 6.1.1.2 Supply Voltage () Frequency() Standard Manual Supply Voltage Supply Voltage Vs ( ) Off/20/2.828/0.5/2.0 Vrms (200/56.6/8/1.422/5.66 Vpp) 50/60/100/120 Hz
13

CMRR 3.0E | User Manual
Coarse 6 70.71 Vrms (200 Vp-p) Vs 70.71 Vrms CMRR CMRR
6-2, “Supply Voltage””Frequency” 6.1.1.3 Inner shield Vc ( Vc) Supply Voltage (Vs) Coarse / Fine Inner shield Vc =Vs/2 Vc Ct Coarse / Fine Ct Ct+Cx ()=100 pF, Vc
Vs Vs= 20 Vrms Vc=10 Vrms 6-3, “Inner Shield Vc”
6.1.1.4 Electrode with Impedance Electrode with Impedance( Electrode with Impedance ) 10K/47nF (Electrode with/without
14

CMRR 3.0E | User Manual
Impedance) 10K/47nF 10K/47nFCMRR 3.0E :
– Electrode with Impedance: None, 10K//47nF – Electrode with Impedance: RA (LA/LL/V1~V6), RA (LA/LL/V1~V6) 10K//47nF,
– Electrode with Impedance: All, 10K//47nF – Electrode without Impedance: RA (LA/LL/V1~V6), RA (LA/LL/V1~V6)
10K/47nF, 6-4, “Electrode with Impedance”
6.1.1.5 DC Offset () DC Offset( Electrode with Impedance ) ±150 mV ±150 mV Electrode with/without Impedance RA DC Offset ±150 RA 9 RA, LA, LL,V1,V2,V3,V4,V5 V6 ±150 mV
15

CMRR 3.0E | User Manual
±150 mV RA
6-5, “DC Offset” CMRR 3.0E (DC Offset) OFF 6.1.2 6.1.2.1 IEC80601-2-26: 2019 IEC80601-2-26 (EEG) IEC 80601-2-26 EEG (Channel) 100 µVp-v (10 mm p-v at 0.1 mm/µV gain) CMRR 3.0E RA/LA/LL/V1/V2/V3/V4/V5/V6 DC CMRR 3.0E IEC 80601-2-26 CMRR 3.0E : EEG ECG Ch1, Ch2,….. 1. 3-1 2. 3. CMRR 3.0E Standard IEC-2-26 4. Supply Voltage 2.0 Vrms, Frequency 50
60 Hz 5. Ct Inner shield (Vc)~1.000
Vrms 6. Ch1 RA, Ch2-LA, Ch3-LL, Ch4-V1, Ch5-V2, Ch6-V3, Ch7-V4, Ch8-V5 Ch9
Chn V6
16

CMRR 3.0E | User Manual
7. Electrode with Impedance RA 8. DC Offset Off 9. EEG Ch1 60 10. DC Offset +150 RA 11. EEG Ch1 60 12. DC Offset -150 RA 13. EEG Ch1 60 14. DC Offset Off 15. Electrode with impedance LA LL/V1/V2/V3/V4/V5/V6 16. EEG Ch2~Ch9 60 17. Ch10~Ch18 Ch1~Ch9 7~16 Ch10~Ch18
ChN
CMRR 3.0E USB PC CMRR 3.0E PC CMRR 3.0E SDK
CMRR 3.0E Assistant WhaleTeq PC CMRR 3.0E () 6.2.1 CMRR 3.0E PC ( Vc ) CMRR 3.0E PC CMRR 3.0E PC PC USB CMRR 3.0E CMRR 3.0E CMRR 3.0E 6-6 “Device Not Found”
“Set” CMRR 3.0E
150 mV DC DC Offset
CMRR 3.0E CMRR 3.0E PC LINK.. CMRR 3.0E PC
17

CMRR 3.0E | User Manual
CMRR 3.0E CMRR 3.0E CMRR 3.0E CMRR 3.0E DC offset
6-6, CMRR 3.0E PC
6.2.2 6-7 IEC-2-26 IEC 2-26
6.2.2.1 Step 1, Preparation() 1 IEC 2-26 “Step 1, Preparation” 6-7 :
1. EEG 2. EEG 3. EEG 0.1 mm/µV EEG “Next”
18

CMRR 3.0E | User Manual
6-7, CMRR 3.0E Assistant “Next” “Test Sequence” 6-8Test Sequence
6-8, CMRR 3.0E Assistant 6.2.2.2 Step 2, Frequency Setting() 2 50Hz 60Hz 50Hz 60Hz 6.2.2.3 Step 3, Connection() 3 :
19

CMRR 3.0E | User Manual
1. Ct Vc= 1 Vrms ( Coarse/Fine ) 2. CMRR 3.0E (Vc ) CMRR 3.0E 100 pF Vc 6.2.2.4 The method to test Electrode with Impedance () 4 Manual () Automatic () Test Sequence Run () 6-9 -2-26 Electrode with Impedance None Next Electrode with Impedance RA
6-9, CMRR3.0E Assistant Test Sequence 6-10″1)” Electrode with Impedance : None “Next”Test Sequence 1)~13)-2-26 CMRR ( 6.1.2.1 IEC80601-2-26: 2019 )
20

CMRR 3.0E | User Manual

6-10, IEC 2-26 7 Software Development KitSDK CMRR 3.0E SDK SDK SDK DLLDynamic- link library C/C++ header C# interfaceScript Language

8 WHALETEQ CMRR 3.0E

9 USB USB
USB

USB 1 WHALETEQ 2 USB 2 3 USB 4 5 WHALETEQ “” WHALETEQ USB USB USB

21

CMRR 3.0E | User Manual
10

CMRR 3.0E “NOISE” CMRR 3.0E CMRR 3.0E CMRR 3.0E NOISE

CMRR 3.0E (DC Offset) OFF
1M Vs
CMRR 3.0E Vs 1M 0.4%
10M ( Fluke 87V)
QC PASS QC PASS

11 CMRR 3.0E

Item Supply voltage CM point voltage Frequency

Option 0.5 / 2.828 / 20 / 2 / (70.71) (Vrms) 1.414 / 10/ 1/ (35.355) (Vrms) 50 / 60 / 100 /120 (Hz)