Vaisala HMT360Series User's Guide download pdf (Page 17)

Chapter 2 __________________________________________________________ Product Overview

VAISALA_______________________________________________________________________ 15

CHAPTER 2

PRODUCT OVERVIEW

This chapter introduces the features, advantages, and the product

nomenclature.

Introduction to HMT360

Vaisala HUMICAP® Humidity and Temperature Transmitter Series

HMT360 contains reliable, microprosessor-based two-wire instruments

for measuring relative humidity and temperature in hazardous areas.

0606-003

Figure 1 HMT360 and Probe Types

WARNING

In hazardous environments, the transmitters must always be connected

via galvanic isolators or Zener barriers.

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USER’S GUIDE 1
Table of Contents 3
CHAPTER 4 4
CHAPTER 5 4
CHAPTER 6 5
CHAPTER 7 5
CHAPTER 8 5
CHAPTER 9 5
APPENDIX A 6
APPENDIX B 6
APPENDIX C 6
List of Figures 7
List of Tables 9
GENERAL INFORMATION 11
Version Information 12
Related Manuals 12
Documentation Conventions 13
ESD Protection 14
Recycling 14
Regulatory Compliances 15
Software License 16
Warranty 16
Trademarks 16
PRODUCT OVERVIEW 17
Output Quantities 18
Probe Options 19
INSTALLATION 21
Selecting Location 22
0507-022 23
0507-036 24
0603-037 25
Probe Mounting 26
HMP363 for Confined Spaces 27
0505-272 29
0505-273 29
0505-274 30
HMP365 for High Temperatures 31
HMP367 for High Humidities 31
Moisture in Liquids 32
Tightening the Clasp Nut 33
Assembly 34
0505-277 35
Electrical Connections 37
US and Canadian Requirements 38
European Requirements 38
HAZARDOUS AREA SAFE AREA 41
Examples of Connections 43
OPERATION 45
Power ON/OFF 46
HMT360 with Display 46
HMT360 without Display 46
DIP Switch Functions 47
Display/Keypad Commands 48
Selecting Output Quantities 49
Selecting Analog Outputs 50
Scaling Analog Outputs 51
Serial Interface 52
Setting the Analog Outputs 53
S Scaling Analog Outputs 54
Adjustment Commands 55
Output Commands 56
S Stopping Continuous Output 57
INTV Setting Output Interval 57
Resetting the Transmitter 59
MEASURING AT OVERPRESSURE 61
CALIBRATION AND ADJUSTMENT 63
Removing the Electronics Unit 64
Connections 65
I 4 mA 16 mA 66
22.3° C40° C– 66
120° C40° C– 66
⋅+ 10.230 mA== 66
Relative Humidity Adjustment 67
Calibration enabled 68
RH calibration on 68
Restore switches 68
Manual Adjustment 69
MAINTENANCE 73
TROUBLESHOOTING 75
Technical Support 76
Product Returns 76
TECHNICAL DATA 77
0507-021 78
With HMP361 Probe 79
HMP368 Probes 79
Options and Accessories 83
Accuracy of Mixing Ratio g/kg 85
DIMENSIONS 87
0603-015 88
0603-016 88
0603-017 88
0603-018 89
0603-019 89
Mounting Plate 90
Rain Shield 90
Protection Cover 91
OPERATION, FM 93
Sheet of 94
OPERATION, CSA 95
0505-306 96
*M010056EN* 97

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Vaisala HMT360Series User's Guide Page 17

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