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Vaisala Calibration of Digital Transmitters with HMI41 User Manual

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VAISALA_____________________________________________________________________ 1


Table of Contents

CHAPTER 1

GENERAL INFORMATION ............................................................................ 3

Safety......................................................................................... 3

Recycling .................................................................................. 4

Trademarks ............................................................................... 4

Warranty .................................................................................... 5

CHAPTER 2

PRODUCT OVERVIEW.................................................................................. 7

Introduction .............................................................................. 7

HMI41 with Calibration Option .............................................. 7

Selecting HMI41 Calibrator Function .................................... 8

CHAPTER 3

CALIBRATION ............................................................................................. 11

Getting Started ....................................................................... 11

One-Point Offset and Gain Calibrations.............................. 15

HMI41 as a Reference Meter .............................................. 15

HMI41 as a Terminal........................................................... 17

Two-Point Calibration ............................................................ 18

HMI41 as a Reference Meter .............................................. 19

HMI41 as a Terminal........................................................... 21

CHAPTER 4

TROUBLESHOOTING ................................................................................. 25

APPENDIX A

QUICK REFERENCE TO CALIBRATION ................................................... 27

Selecting the Calibrator Function......................................... 27

Offset and Gain Calibrations with HMI41 as a Reference
Meter ........................................................................................ 28

Offset and Gain Calibrations with HMI41 as a Terminal..... 29

Two-Point Calibration with HMI41 as a Reference Meter ... 30

Two-Point Calibration with HMI41 as a Terminal ................ 31