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Vaisala Moisture, Hydrogen, and Temperature ... Vaisala Moisture, Hydrogen and Temperature Transmitter for Transformer Oil MHT410 PUBLISHED BY Vaisala Oyj Vanha Nurmijärventie 21,

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  • EN

    DE

    FR

    ES

    PT

    JA

    ZH

    M211736EN-D

    Quick Guide Vaisala Moisture, Hydrogen and Temperature

    Transmitter for Transformer Oil

    MHT410

  • PUBLISHED BY

    Vaisala Oyj Vanha Nurmijärventie 21, FI-01670 Vantaa, Finland P.O. Box 26, FI-00421 Helsinki, Finland +358 9 8949 1

    Visit our Internet pages at www.vaisala.com.

    No part of this document may be reproduced, published or publicly displayed in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be modified, translated, adapted, sold or disclosed to a third party without prior written permission of the copyright holder. Translated documents and translated portions of multilingual documents are based on the original English versions. In ambiguous cases, the English versions are applicable, not the translations.

    The contents of this document are subject to change without prior notice.

    Local rules and regulations may vary and they shall take precedence over the information contained in this document. Vaisala makes no representations on this document’s compliance

    with the local rules and regulations applicable at any given time, and hereby disclaims any and all responsibilities related thereto.

    This document does not create any legally binding obligations for Vaisala towards customers or end users. All legally binding obligations and agreements are included exclusively in the applicable supply contract or the General Conditions of Sale and General Conditions of Service of Vaisala.

    This product contains software developed by Vaisala or third parties. Use of the software is governed by license terms and conditions included in the applicable supply contract or, in the absence of separate license terms and conditions, by the General License Conditions of Vaisala Group.

    http://www.vaisala.com/

  • Artboard1

    543

    21 +

    C H

    2

    – C

    H 2

    + C

    H 1

    – C

    H 1

    S H

    LD

    S H

    LD

    R S

    G N

    D D

    D +

    + V

    s

    – V

    s3 4 5 6 7 8 9 10 11 12 13 14 15 16

    RS-485

    NALOG OUTPUTS

    SERVICE PORT

    19200 b/s, 8, n, 1

    POWER

    SERIAL COMMANDSDevice information ?List of errors ERRSList of commands HELP

    Modbus defaultaddress: 240

    RS-485 TERMINATION

    ON OFF

    See manual for further commands. www.vaisala.com/MHT410

    + C

    H 3

    – C

    H 3

    + C

    H 2

    – C

    H 2

    + C

    H 1

    – C

    H 1

    SH LD

    SH LDR

    S G

    N D

    D –

    D +

    + Vs

    – Vs

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    RS-485

    ANALOG OUTPUTS

    POWER

    Modbus default address: 240

    RS-485TERMINATION

    ON OFF

    Wiring / Verdrahtung / Câblage / Cableado / Fiação /配線 / 电气接线

  • Artboard2

    OPTION 1 / Option 1 / Option 1 / Option 1 / Opción 1 / Opção 1 / オプション 1 / 选项 1

    Power supply 15...30 VDC Or 24 VAC ± 15%

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485ANALOG OUTPUTS POWER

    R S

    G N

    D mA+

    POWER SUPPLY 15 ... 30 VDC For current loop

    + mA+

    POWER SUPPLY 15 ... 30 VDC For current loop

    + mA+

    - POWER SUPPLY 15 ... 30 VDC For current loop

    + R = 0 ... 500 ΩL

    Each analog output channel (CH1 - CH3) requires its own 15 ... 30 VDC power supply

    - --

    - -

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485ANALOG OUTPUTS POWERPOWER

    R S

    G N

    D

    MHT410MH

    +CH3 -CH3

    D- D+ +Vs -VsRSGND

    +CH2 -CH2 +CH1 -CH1

    Vaisala Cable CBL210392-5M

    Green Grün Vert

    Verde Verde

    Yellow Gelb

    Jaune Amarillo Amarelo

    Purple Violett Violet

    Púrpura Roxo

    Black Schwarz

    Noir Negro Preto

    White Weiß Blanc Blanco Branco

    White-Green Weiß-Grün Blanc-vert

    Blanco-verde Branco-Verde

    White-Yellow Weiß-Gelb Blanc-jaune

    Blanco-amarillo Branco-Amarelo

    Yellow-Brown Gelb-Braun

    Jaune-marron Amarillo-marrón Amarelo-Marrom

    Gray-White Grau-Weiß Gris-blanc Gris-blanco

    Cinza-Branco

    Red Rot

    Rouge Rojo

    Vermelho

    Blue Blau Bleu Azul Azul

    Wire colors / Drahtfarben / Couleurs des câbles / Colores del cable / Cores dos fios / /

    Wiring Options / Verdrahtungsoptionen / Options de câblage / Opciones de cableado / Opções de fiação / 配線オプション / 接线选项

    OPTION 1: WIRING WITH FOUR POWER SUPPLIES

  • Artboard3

    Power supply 15...30 VDCmA

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    R S

    G N

    D

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485ANALOG OUTPUTS

    mA

    POWER

    + - + - + -

    + - mA

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    R S

    G N

    D

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485ANALOG OUTPUTS POWER

    + - ++ - + -

    MHT4100MHT

    Power supply 15...30 VDC Or 24 VAC ± 15%

    + - mA mA mA

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485

    4...20 mA R = 0...500 Ω

    15...30 VDC, loop powered Power supply required

    L

    ANALOG OUTPUTS

    R S

    G N

    D

    POWER

    + -

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485ANALOG OUTPUTS

    R S

    G N

    D

    POWERMHT4100MH

    Power supply 15...30 VDC

    mA mAmA

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485ANALOG OUTPUTS

    R S

    G N

    D

    POWER

    + -

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

    +C H

    3

    -C H

    3

    +C H

    2

    -C H

    2

    +C H

    1

    -C H

    1

    D -

    D +

    +V s

    -V s

    SH LD

    SH LD

    RS-485ANALOG OUTPUTS

    R S

    G N

    D

    POWERMHT4100MH

    OPTION 2 / Option 2 / Option 2 / Option 2 / Opción 2 / Opção 2 / オプション 2 / 选项 2

    OPTION 3 / Option 3 / Option 3 / Option 3 / Opción 3 / Opção 3 / オプション 3 / 选项 3

    OPTION 4 / Option 4 / Option 4 / Option 4 / Opción 4 / Opção 4 / オプション 4 / 选项 4

    OPTION 2: WIRING WITH TWO POWER SUPPLIES

    OPTION 3: WIRING WITH ONE POWER SUPPLY

    OPTION 4: WIRING WITH ONE POWER SUPPLY

  • Block size: 70 mm height 140 mm width 8 mm margin

    Dimensions / Abmessungen / Dimensions / Dimensiones / Dimensões / 寸法 /尺寸

    50 mm 2.5 mm36 mm 2 x 24 mm

    Tools / Werkzeuge / Outils / Herramientas / Ferramentas / 工具/道具 / 工具

    Cable Ø 8...11

    150 125

    27 0 22

    2

    1.5” NPT

    334 132

    94.5 202

    38.5

    51 25.5 76.5

    20.6

    745036

    mm

  • LED

    RS & T Sensor

    H2 Sensor

    1 2

    4 5

    7 8

    11 12

    13 15

    16

    RS-485 Service PortMoisture measurement

    Feuchtemessung Mesure de l'humidité

    Medición de humedad Medição de umidade

    Processing Unit

    Verarbeitungs- einheit

    Unité de traitement

    Unidad de procesamiento

    Unidade de processamento

    Galvanic Isolation Galvanische Trennung Isolation galvanique Aislamiento galvánico

    =

    PSU AC/DC

    RS-485

    A-Out

    A-Out

    A-Out

    Temperature measurement Temperaturmessung

    Mesure de la température Medición de temperatura Medição de temperatura

    Hydrogen measurement Wasserstoffmessung

    Mesure de l'hydrogène Medición de hidrógeno Medição de hidrogênio

    Isolamento galvânico

    Block Diagram / Blockschaltbild / Schéma-bloc / Diagrama de bloques / Diagrama de bloco / ブロック図 / 方框图

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    9

    876

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