Vaisala MHT410 Manuals

Vaisala MHT410 Manuals

Manuals and User Guides for Vaisala MHT410. We have 1 Vaisala MHT410 manual available for free PDF download: User Manual

Vaisala MHT410 User Manual

Vaisala MHT410 User Manual (116 pages)

Vaisala Moisture, Hydrogen and Temperature Transmitter for Transformer Oil

Brand: Vaisala | Category: Transmitter | Size: 4.36 MB

Table of Contents

Table of Contents
3
1 Safety

9
- ESD Protection
  10
2 About this Document

11
- Documentation Conventions
  11
- Table 2 Related Manuals
  11
- Regulatory Compliances
  12
- Trademarks
  12
3 Product Overview

13
- Main Features
  13
- Product Parts and Package Contents
  14
- Measurement Parameters and Units
  16
- Data Logging
  17
- Status Leds
  17
4 Installation

19
5 Analog Output

38
6 Modbus

40
- Overview of Modbus Protocol Support
  40
7 Vaisala Industrial Protocol

41
- Table 4 Default Serial Interface Settings
  41
- Connecting Via Service Port
  42
- Serial Commands Summary
  45
- Table 11
  45
- Table 6 Serial Commands
  45
- Device Information and Status Commands
  47
- Table 7 ? Command
  47
- Table 8 Alarm Command
  48
- Table 9 Errlog Command
  49
- Table 10 Errs Command
  50
- Table 11 Help Command
  51
- Table 12 System Command
  51
- Table 13 Time Command
  52
- Table 14 Vers Command
  52
- Serial Line Output and Communication Commands
  53
  - Measurement Output Commands
    53
  - Table 15 Intv Command
    53
  - Table 16 Log Command
    53
  - Table 17 R Command
    56
  - Table 18 Send Command
    56
  - Measurement Output Format Commands
    57
  - Table 19 Form Command
    57
  - Table 20 Output Parameters for Form Command
    58
  - Table 21 Modifiers for Form Command
    59
  - Serial Line Communication Commands
    60
  - Table 22 Unit Command
    60
  - Table 23 Addr Command
    60
  - Table 24 Close Command
    61
  - Table 25 Open Command
    61
  - Table 26 Sdelay Command
    61
  - Table 27 Seri Command
    62
  - Table 28 Smode Command
    63
- Analog Output Commands
  64
- Table 29 Aerr Command
  64
- Table 30 Aover Command
  64
- Figure 4 Analog Output Overrange Behavior
  65
- Table 31 Asel Command
  65
- Table 32 Atest Command
  67
- Calibration and Adjustment Commands
  68
- Table 33 Cdate Command
  68
- Table 34 Ctext Command
  68
- Other Commands
  69
- Table 35 H2 da and H2 Db Commands
  69
- Table 36 Dnp3 Addr Command
  69
- Table 37 Filt Command
  70
- Table 38 Frestore Command
  70
- Table 39 Reset Command
  71
- Table 40 H2 Is Command
  71
8 DNP3 Protocol

72
9 MI70 Hand-Held Indicator

77
10 Calibration and Adjustment

85
- H 2 Calibration and Adjustment
  85
  - Taking DGA Sample and Saving Current H2 Reading
    85
  - Entering DGA H Reading to Transmitter
    86
- RS & T Calibration and Adjustment
  88
11 Troubleshooting

89
12 Technical Data

92
Appendix A: Operating Principle

103
Appendix B: Modbus Reference

106
- Function Codes
  106
- Data Encoding
  106
  - 32-Bit Floating Point or Integer Format
    106
  - Table 54 Modbus Function Codes
    106
  - 16-Bit Integer Format
    107
- Register Map
  107
- Modbus Registers
  107
- Device Identification Objects
  110
- Table 60 Device Identification Objects
  110
- Exception Responses
  111
- Table 61 Modbus Exception Responses
  111
- B.6 Exception Responses
  111
Appendix C: Moisture Ppm Calculation for Transformer Oils

112
- Calculation Model with Average Coefficients
  112
- Calculation Model with Oil-Specific Coefficients
  112
- Warranty
  113
- Technical Support
  113

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