Sierra Top-Trak Mass Flow Meter 820 Manual De Usuario

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Table of Contents
Series 820 Instruction Manual
0-4
IM-82-C
Appendix A  Conversion Formulas and Gas Tables
Appendix B  Production Specifications
List of Figures
1-1.
Top-Trak Features (Typical)..................................1-3
1-2.
Flow Paths through the Transducer..........................1-4
1-3.
Flow Measuring Principle.....................................1-4
2-1.
Piping Requirements for 1/2-inch Size Connections. . . . . . .2-3
2-2.
Transducer D-Connector Pin Assignments .................2-4
2-3.
Standard 0-5 VDC Output Signal Wiring ...................2-5
2-4.
Single Transducer Current Loop Connection...............2-5
2-5.
Multiple Transducer Current Loop Connections . . . . . . . . . . .2-6
2-6.
Mounting the Remote Display ................................2-6
4-1.
Model 822/824 Flow Components...........................4-2
4-2.
Correct LFE Position ..........................................4-3
4-3.
Model 826/827 Flow Components...........................4-4
4-4.
Low Flow Transducer LFE Cleaning........................4-5
4-5.
Medium Flow Transducer LFE Cleaning ...................4-6
4-6.
High Flow Transducer LFE Cleaning .......................4-7
4-7.
Printed Circuit Board Component Locations ............. 4-10