Bitronics QTWIE2, Руководство пользователя

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ML0030 August 2009 Copyright 2009 Bitronics, LLC
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TABLE OF CONTENTS
TABLE OF CONTENTS ................................................................................. i
CERTIFICATION ............................................................................................ ii
COPYRIGHT .................................................................................................. ii
INSTALLATION AND MAINTENANCE .......................................................... ii
WARRANTY AND ASSISTANCE ..................................................................
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1.0 DESCRIPTION ........................................................................................ 1
1.1 Introduction .............................................................................................. 1
1.2 Features ................................................................................................... 1
1.3 Specifications ........................................................................................... 2
2.0 PRINCIPLES OF OPERATIONS .............................................................. 3
2.1 Modular Construction ............................................................................... 3
2.2 Input Signal Connections .......................................................................... 3
2.3 Current and Potential Transformer Board (CT/PT Board) ........................ 4
2.4 Power Supply Board (PS Board) ............................................................. 4
2.5 Analog Processing Board (AP Board) ..................................................... 4
2.6 Microcontroller Board (MCU Board) ......................................................... 5
2.7 LED Display Board (LED Board) .............................................................. 6
3.0 INSTALLATION ........................................................................................ 7
3.1 Initial Inspection ....................................................................................... 7
3.2 Power Requirements ................................................................................ 7
3.3 Overcurrent Protection ............................................................................. 7
3.4 Mains Disconnect .................................................................................... 7
3.5 Instrument Mounting ................................................................................ 7
3.6 Surge Protection ...................................................................................... 8
4.0 FIELD ADJUSTMENTS ............................................................................ 9
4.1 Rescaling .................................................................................................. 9
4.2 Calibration ................................................................................................. 11
4.3 Self Test Modes ........................................................................................
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4.4 Cleaning .................................................................................................... 11
4.5 Electronics Module Removal ..................................................................... 14
5.0 QUESTIONS AND ANSWERS .................................................................. 15
6.0 WIRING DIAGRAMS ................................................................................. 16