WHALETEQ CMRR 3.0E, Руководство пользователя

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CMRR 3.0E | User Manual
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Table of Contents
1 Introduction 5
2 Electrical Diagram 5
3 Set Up a Noise Free Test Environment 6
3.1 Reduce environmental noise and connect outer shielding to the ground plane. 6
3.2 Shielding Covers for the Electrode Cables 7
4 Principle of the CMRR test 8
4.1 Common mode rejection ratio explained 8
4.2 Test equipment 8
5 Panel Function 9
5.1 Upper Panel 9
5.1.1 LCD Touch Screen 10
5.1.2 [Coarse] Knob 10
5.1.3 [Fine] Knob 10
5.1.4 70.71 Vrms Switch 11
5.2 Front Panel 11
5.2.1 Tapped Hole 11
5.2.2 USB Connector 11
5.2.3 [DC 12V] Terminal 11
5.2.4 Power Switch 12
5.2.5 [Vc] Terminal 12
5.2.6 [Vs] Terminal 12
5.2.7 [Monitor] Terminal 12
5.2.8 Grounding Terminal 12
5.3 Right Panel 12
5.3.1 [CM Point] Terminal 13
5.3.2 RA/LA/LL/RL/V1~V6 Electrode Terminals 13
6 Operation 13
6.1 Stand-alone Operation 13
6.1.1 Touch Screen for Setting Different Parameters 13
6.1.2 Test Exemplification 16
6.2 PC Software Operation 17
6.2.1 CMRR 3.0E PC Software 17
6.2.2 CMRR 3.0E Assistant Software 18
7 Caution 21
7.1 Baseline noise test 21
7.2 Battery power consumption for DC offset function 21
7.3 Vs voltage drop with the multimeter of 1MΩ input impedance 21
7.4 QC PASS Label 21
8 CMRR 3.0E Specifications 22