GE Hydran M2-X Instruction Manual
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GE Hydran M2-X Instruction Manual

Transformer gas monitoring system
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Hydran* M2-X
Transformer Gas Monitoring System
Instruction Manual
GE Grid
Solutions, Lissue Industrial Estate East,
Lissue Walk, Lisburn, BT28 2LU, United Kingdom
Tel: +44 (0) 28 9262 2915,
Fax: +44 (0) 28 9262 2202
Email:
ge4service@ge.com
MA-029
Rev. 1.0, 30-Jul-18
Web:
www.gegridsolutions.com/md.htm

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  • Page 1 Hydran* M2-X Transformer Gas Monitoring System Instruction Manual GE Grid Solutions, Lissue Industrial Estate East, Lissue Walk, Lisburn, BT28 2LU, United Kingdom Tel: +44 (0) 28 9262 2915, Fax: +44 (0) 28 9262 2202 Email: ge4service@ge.com MA-029 Rev. 1.0, 30-Jul-18 Web: www.gegridsolutions.com/md.htm...

  • Page 2: Table Of Contents

    Safety Symbols Description ......................... 12 Preface ................................13 Standard GE Warranty ..........................14 General Warnings ............................16 Introduction to the Hydran M2-X ......................22 2.1 Overview ..............................22 2.1.1 Gas Detection ......................... 23 2.1.2 Moisture Detection ....................... 23 2.1.3 Optional I/O Interfaces ......................24 2.1.4 Backward Compatibility with Hydran Products ............
  • Page 3 Hydran* M2-X Instruction Manual 3.1.2 Operating Modes ........................36 3.1.3 Changing the Value of a Parameter ................39 3.1.4 Scrolling Indicators ....................... 41 3.1.5 Passwords ..........................41 3.2 Setup Menu .............................. 42 3.2.1 Alarms Setup ........................... 42 3.2.2 Date & Time ..........................42 3.2.3 Relay Setup ..........................
  • Page 4 4.3.2 Verifying the Serial Numbers .................... 77 4.3.3 Preparing the Valve ......................79 4.3.4 Separating the Sensor from the Hydran M2-X ............79 4.3.5 Installing the Sensor onto the Valve ................81 4.3.6 Opening the Valve and Purging Air from the Sensor ..........83 4.3.7 Installing the Hydran M2-X on the Sensor..............
  • Page 5 5.2.2 Configuring the Hydran M2-X’s Communication Parameters ......103 5.2.3 Installing and Configuring a Laptop Computer ............103 5.2.4 Installing a Hydran 201i Controller ................104 5.2.5 Connecting a Hydran M2-X to the Hydran 201i Controller ......... 105 Alarms ................................. 106 6.1 Introduction ............................106 6.1.1 Setting Alarm Parameters ....................
  • Page 6 Hydran* M2-X Instruction Manual 6.2.1 Sources ..........................109 6.2.2 High and High-High Conditions ..................109 6.2.3 Detection of Alarm Conditions ..................110 6.2.4 Setting the High Alarm Condition ................. 110 6.2.5 Gas Hourly and Daily Trend Alarm Conditions ............111 6.3 System Fault Conditions........................
  • Page 7 Directly or by Modem to the Hydran 201Ci Controller’s DB-9 Connector ......130 8.2.3 No Communication between the Host Computer and the Network of Hydran 201Ci Systems .......................... 131 8.3 Hydran M2-X and Hydran 201Ci Controller’s Analog Outputs at Zero ......131 8.4 Alarms ..............................132 8.4.1 Intermittent Gas Alarms....................132 8.4.2 An Alarm Relay does not Reset, even if the Alarm Condition has...
  • Page 8 10 Decommissioning the Hydran M2-X ....................143 10.1 Powering-off ............................143 10.2 Cable Disconnection .......................... 143 10.3 Removing the Hydran M2-X......................144 Appendix A. Technical Specifications for the Hydran M2-X ............... 145 A-1. General ..............................145 A-2. Dimensions ............................149 A.2.1. Enclosure Dimensions ....................... 149 A.2.2.

  • Page 9: Copyright Notice And Proprietary Rights

    GE, except as otherwise indicated. You may not disclose, reproduce, publish, license, post, transmit or distribute this manual, in whole or in part, without the prior written permission of GE or except as permitted by written license agreement with GE.

  • Page 10: Safety Warnings In Six Languages

    Hydran M2-X, and could lead to property damage, personal injury and/or death. • Installation and maintenance of the Hydran M2-X must be carried out by qualified personnel only. Please advise station operator prior to maintenance. Working inside the Hydran M2-X may trigger unwanted alarms due to parameter changes, power shutdown, and system rebooting or electrostatic discharge.

  • Page 11: [De] (In German) Warnung

    Hydran M2-X, e potrebbe causare danni alla proprietà, lesioni personali e/o alla morte. • L’installazione e la manutenzione del Hydran M2-X devono essere eseguite solo ed esclusivamente da personale qualificato. Avissare l’operatore della stazione prima di manutenzione.

  • Page 12: [Sv] (In Swedish) Varning

    • Installation och underhåll av Hydran M2-X måste utföras av behörig personal. Råd var god posterar operatören före underhåll. Funktionsduglig insida Hydran M2-X kan starta oönskade parameterändringar för larm tack vare, driver avstängning, systemomstart eller elektrostatisk urladdning.

  • Page 13: Preface

    This manual is written for the 0–2,000 ppm operating range only. This range is the one used by most Hydran M2-X’s. Should your Hydran M2-X(’s) use a different operating range, please convert the values (in doubt, contact the General Electric Customer Service;...

  • Page 14: Standard Ge Warranty

    3. From Reading Setup, select Gas Reading Setup. The Hydran M2-X Instruction Manual (this manual), the Hydran M2-X Installation Guide are located in PDF format in the English/Manuals folder of the Hydran M2-X installation CD. Hard copies of each manual can be purchased from General Electric.
  • Page 15 Buyer at the Buyer’s expense. The condition of any tests shall be mutually agreed upon and GE shall be notified of and may be represented at all tests that may be made.

  • Page 16: General Warnings

    Hydran* M2-X Instruction Manual 1 General Warnings Mishandling of the Hydran M2-X sensor (such as a WARNING perforation or scratch on the membrane or subjecting the sensor to paint or solvent) voids the warranty. 1. Do not remove the plastic cap from the sensor’s threaded extremity until the sensor is installed on the valve (see Figure 1-1).
  • Page 17 Hydran* M2-X Instruction Manual 2. Do not touch the membrane located inside the threaded extremity of the sensor with a finger or an object (see Figure 1-2). The membrane is easily impaired; impairing the membrane damages the sensor permanently, thus voiding the warranty.
  • Page 18 Figure 1-5: Do Not Install the Hydran M2-X on an Elbow or a Fitting Box 6. Do not install the Hydran M2-X on the inlet side of the radiator pump (see Figure 1-6).
  • Page 19 Hydran* M2-X Instruction Manual Figure 1-6: Do Not Install the Hydran M2-X on the Inlet Side of the Radiator Pump 7. Do not subject the Hydran M2-X or its sensor to high-pressure water streams (see Figure 1-7). High-pressure streams used to clean transformers may cause serious damage.
  • Page 20 11. Do not separate the Hydran M2-X’s from their respective sensor. The Hydran M2-X is set at the factory for a specific sensor. To verify if the sensor and Hydran M2-X are paired correctly, consult the serial numbers indicated on the shipping box and/or the Test Certificate and Data Sheet (for an example, see Figure 3-12).
  • Page 21 Hydran* M2-X Instruction Manual so can result in property damage, personal injury and/or death. 12. The surface of the base plate can be hot. Heating for the dynamic oil sampling system (Section 2.5) is achieved using heating resistors mounted on the internal side of the base plate.

  • Page 22: Introduction To The Hydran M2-X

    (or any other oil-filled electrical equipment). The Hydran M2-X consists of a Type NEMA 4X enclosure (Figure 2-1) easily installed on one of the valves of the equipment to be monitored. Figure 2-1: Hydran M2-X's Enclosure The Hydran M2-X’s user interface (Figure 2-2) consists of an eight-key membrane...

  • Page 23: Gas Detection

    (some of the set-up functions can be performed only from the user interface), it is recommended to connect (using an RS-232 link) the Hydran M2-X to a laptop computer running the Perception software. This software provides an easier and friendlier environment to perform the same tasks.

  • Page 24: Optional I/O Interfaces

    Note: The H201Ci -1 and H201Ci-4 can only display the gas level reading of the Hydran M2-X, not the humidity level. They are also limited to two alarm levels: gas High and High-High (Alarm 1 and Alarm 2 of the Hydran M2-X).

  • Page 25: Possible Configurations

    • As a stand-alone unit (using its keypad and display, or the Perception software running on a laptop computer). • In a network of up to 32 Hydran M2-X’s. Network communications are performed through an isolated RS-485 link. Networking is described in Chapter 6.
  • Page 26 5. Membrane vent: Air penetrates through the watertight membrane vent and inside the Hydran M2-X. The gas detector requires air to function properly. 6. Conduit fittings: Up to six watertight, non-conducting conduit fittings can be mounted on the heater plate.

  • Page 27: Electronic Card Cage

    7. Sensor clamp: To secure the sensor. 8. Sensor: See Section 2.4. 9. Ground lug: To ground the Hydran M2-X. WARNING The enclosure must be grounded 10. Display window: The cover has a window to see the display. The display, along with the keypad, is located on the front of the electronic card cage.

  • Page 28: Right Side - Terminal Blocks

    The Hydran M2-X’s user interface (see Figure 2-2) consists of an eight-key membrane keypad and a 128 x 64 pixels, backlit liquid crystal display (LCD) to use the Hydran M2-X as a stand-alone unit. For more information on the user interface, see Chapter 3.

  • Page 29: Left Side - Terminal Blocks

    Note: Each I/O interface is identified by a label on its connector. Note: When ordered with the Hydran M2-X, optional I/O interfaces are added to the Hydran M2-X at the General Electric’s plant before shipping. To add an I/O interface after the assembly of the Hydran M2-X is completed, see Appendix E.

  • Page 30: Inside

    2.3.4.1 Battery The Hydran M2-X’s battery is used to keep the real-time clock functioning and to retain the parameter values and data of the history files when the ac power is not available. For the specifications, see Section 9.3; should you need to replace the battery, see Appendix G.

  • Page 31: Hydran M2-X Sensor

    The Hydran M2-X sensor is composed of a permeable-membrane gas detector and a thin-film capacitive humidity sensor. The Hydran M2-X sensor (see Figure 2-7) is made of brass. It consists of the following parts: Figure 2-7: Parts of the Hydran M2-X Sensor 1.

  • Page 32: Measurements Performed By The Sensor

    Dissolved Gas Analysis (DGA). The oil sampling procedure is described in Appendix J. 4. 1.5-in NPT male threads: They are used to mount the Hydran M2-X directly on an open-bore valve of a transformer or any other oil-filled electrical equipment. The gas detector and moisture sensor are both mounted inside the sensor’s threaded extremity.

  • Page 33: Sensor Temperature

    • Ambient air temperature surrounding the Hydran M2-X. • Oil temperature behind the valve on which the Hydran M2-X is mounted Note: A system fault alarm condition is detected when the sensor temperature is outside the operating limits.

  • Page 34: User Interface And Software

    To access it, remove the cover. Figure 3-1: User Interface The user interface allows the use of the Hydran M2-X as a stand-alone unit. It consists of a 128 x 64 pixels, backlit liquid crystal display (LCD) and an eight-key membrane keypad.

  • Page 35: Using The Keypad Keys

    Hydran* M2-X Instruction Manual Both the display and keypad are designed to function under an extremely wide temperature range. Note: It is recommended to use the Perception software rather than the Hydran M2-X’s user interface (keypad and display; see Figure 3-1); Only the analog I/O calibration and communication parameters cannot be accessed with the Perception software.

  • Page 36: Operating Modes

    Note: Alarms are explained in detail in Chapter 7. Alarm messages due to system fault conditions are listed in Section 8.1. Appendix I presents the list of all alarm messages that can be displayed by the Hydran M2-X and that can appear on the Perception software.
  • Page 37 An alarm is acknowledged by pressing the Ackn. context key while the corresponding message is displayed. When acknowledged, the message is removed. The Hydran M2-X returns to the Main Display mode when all alarms have been acknowledged. Acknowledged alarms that are still active are shown in a screen of the Main Display mode (see Section 3.1.2.3).
  • Page 38 Hydran* M2-X Instruction Manual • Screen 1 (below) displays gas-related information (for more information, see Section 3.2.8.1): • Gas Level: The gas level in ppm. • Gas Hourly Tr.: The gas hourly trend in ppm/x hours. • Gas Daily Tr.: The gas daily trend in ppm/x days. Figure 3-4: Screen 1 of Main Display Mode - Gas Readings Screen •...

  • Page 39: Changing The Value Of A Parameter

    Hydran* M2-X Instruction Manual Figure 3-6: Screen 3 of Main Display Mode - Analog Input Readings Screen Note: The readings of screens 1, 2 and 3 can also be accessed in View Readings > Current Readings (see Section 3.4.1). • Screen 4 (see below) displays the list of active alarms. Alarm conditions are listed in this screen only if an alarm occurred, if it was acknowledged and if the alarm condition is still present.
  • Page 40 6. If the new value is validated using the Accept context key, the message Value Changed appears, as shown in Figure 3-10. Note: Each parameter has a default value. The Hydran M2-X resets each parameter to its default value when the battery is replaced (see Appendix G) or when the Hydran M2-X’s embedded software is upgraded (see Appendix F).

  • Page 41: Scrolling Indicators

    3.1.4 Scrolling Indicators The Hydran M2-X’s display can show up to seven lines of text at a time; if a screen contains more lines, scrolling indicators are displayed in the bottom right corner: • : Indicates there is at least one item below the displayed items. Press the Down arrow until these items are displayed.

  • Page 42: Setup Menu

    Hydran* M2-X Instruction Manual The Hydran M2-X’s user interface is protected by two passwords. A password is required to modify parameters: • Password No. 1 (first level): The password No. 1 is 1253. It gives access to most variable adjustment functions.

  • Page 43: Relay Setup

    Alarms > Alarms Setup (see Section 3.3.2). 3.2.4 Temp Setup The Temp. Setup parameters pertain to the operation of the Hydran M2-X’s heater plate and dynamic oil sampling system. • Temp Set Point: Set point of the sensor temperature (average target temperature of the heater plate).

  • Page 44: History Setup

    Hydran* M2-X Instruction Manual This function is used only for service purposes. Misuse of this CAUTION function will render the Hydran M2-X inoperative. 3.2.6 History Setup The History Setup function is used to: • Set the logging rate parameters of the Short Term and Long Term history files.

  • Page 45: Comm Setup

    • Monitor ID: Hydran M2-X’s identification number, ranging from 1 to 254. An exclusive identification number must be assigned to each Hydran M2-X in a local network. If two Hydran M2-X’s share the same number in a local network, they will not be able to communicate properly with the Perception software. The numbers can be assigned sequentially or using any other assignment method preferred by the user;...
  • Page 46 Hydran M2-X Monitor ID Parameter Reserved T1AS At least one Hydran M2-X in a local network must be set to an identification number between 1 and 5 (inclusively). Table 3-3: Setting Example for Identification Numbers Both identification numbers must be identical to those assigned to the same Hydran M2-X’s and power station in the Perception software.

  • Page 47: Readings Setup

    57,600 or 115,200 bps (bits per second). The Perception software must be set to the same baud rate value. Note: All Hydran M2-X’s in a local network must be set to the same data communication speed. The recommended speed is 9,600 bps.

  • Page 48: I/O Setup

    Hydran* M2-X Instruction Manual These values are accessible in two menus: • In View Readings > Current Readings > H O Readings. • In the moisture readings screens of the Main Display mode (see Section 3.1.2.3). In these screens, both values are named Average. 3.2.8.3 Sensor Temp Avg Per Time (in hours) used to calculate the View Readings >...
  • Page 49 • Analog Mode: To set the operation mode of the analog output. The three Force x % modes are used only to test the operation of the Hydran M2-X. Table 3-4 shows the electrical current generated for each mode. Operation Mode...

  • Page 50: Alarms Menu

    Press any arrow key to rotate through the list of current alarms. Each displayed screen corresponds to one alarm condition. If two or more alarm conditions are present, the Hydran M2-X scrolls through the screens, each one being displayed for five seconds. A screen example is shown below.
  • Page 51 Temp. Alarm in Section 3.3.2.3. Note: Each alarm of the Hydran M2-X can be assigned to any one of the four relays (1 to 4). More than one alarm can be assigned to a same relay. Appendix I presents the list of all alarm messages that can appear in the Perception software.
  • Page 52 Hydran* M2-X Instruction Manual The Moisture Alarm Setup functions give access to the parameters of the moisture alarm conditions: • %RH Level Alarm: Gives access to the %RH moisture level High and High-High alarm parameters: – Alarm Hi SP: Set point of the relative humidity High alarm condition. –...
  • Page 53 Hydran* M2-X Instruction Manual Note: Appendix I presents the list of all alarm messages that can appear in the Perception software. 3.3.2.3 Temperature Alarms Setup • Hydran Sensor Temp Alarm: Gives access to the sensor temperature Low-Low, Low, High and High-High alarm parameters: –...
  • Page 54 Note: Appendix I presents the list of all alarm messages that can appear in the Perception software. For explanations pertaining to the Hydran M2-X’s battery, see Section 2.3.4.1; for the battery specifications, see Section 9.3.1; to replace the battery, see Appendix G.

  • Page 55: Alarm History

    Input Setup > IO#x(In.4-20mA) > Configuration > Identification >Input Short Name. There is one Analog Input Alarm Setup function for each input interface installed on the Hydran M2-X. The Analog Input Alarm Setup function gives access to the alarm parameters for each optional input interface: •...

  • Page 56: View Readings Menu

    Hydran* M2-X Instruction Manual 3.4 View Readings Menu 3.4.1 Actual Readings 3.4.1.1 Temperature Readings • Sensor Temp: Actual temperature of the sensor, in °C. • Sensor Temp Avg: Average temperature of the sensor, in °C. The period used to calculate this value is set with parameter Sens. Temp Avg Per. in Setup >Readings Setup (see Section 3.2.8.3).

  • Page 57: View History Data

    3.4.2 View History Data The Hydran M2-X has an internal function that automatically records information such as gas and moisture levels, trend values, alarm messages and setup parameters. This information is stored in four sections, which are collectively referred to as history files.
  • Page 58 • The Hydran M2-X is calibrated. • A power-up or a shutdown occurs. • The Hydran M2-X is put in service (first power-up). • The self-test sequence has failed during power-up. • The microprocessor is reset by the internal watchdog.

  • Page 59: Date & Time

    The Service History function gives access to the Service history file. The Hydran M2-X performs a self test of its sensor on the first and fifteenth days of each month at midnight (fixed logging rate, non adjustable). After each test, the date and time of the test plus several variables are recorded in the Service history file.

  • Page 60: Relay Test

    Table 3-5: Messages that can be Displayed Following a Sensor Test Note: The Hydran M2-X is equipped with a provisional alarm called the “Sensor Caution Alarm”. By default, this alarm is disabled, but can be enabled by the user to give early notification of a potential impending issue with the sensor.

  • Page 61: Service Menu

    • Gas Param CkSum: Checksum of the above values. This value is added to the list to avoid erroneous values from being entered. Note: The Hydran M2-X uses the proven technology of the Hydran M2-X sensor. For a complete description, see Section 2.4.
  • Page 62 O Param CkSum: Checksum of the above values. This value is added to the list to avoid erroneous values from being entered. Note: The Hydran M2-X uses the proven technology of the Hydran M2-X sensor. For a complete description, see Section 2.4.

  • Page 63: Install New Sensor

    The H2 Sensor Test function is identical to the one in Test > Sensor Test (see Section 3.5.1). 3.6.4 View Service Data This function is used to read the value of internal parameters used by the General Electric personnel during the Hydran M2-X maintenance or troubleshooting procedures. 3.6.5 System Config 3.6.5.1 Current Config •...

  • Page 64: Service History

    Hydran* M2-X Instruction Manual • Comm#2: The TDM and RS-485 link board is currently connected to the communication port #2 of the controller board. • IO#1: Used to connect one of the three types of optional I/O interfaces (analog input, 4-20 mA analog output or TDM signal). •...

  • Page 65: Software Version

    • Sensor Card#3: Version number of the sensor card 3 software 3.6.8 Sensor Card Status The Sens. Card Status function indicates which sensor card is detected by the Hydran M2-X. A card can be Ok (present) or Not Present. Page 65 MA-029...

  • Page 66: Verification, Installation And Configuration

    M2-X. 4.1.2 Shipping List This Section lists all items included in the shipment of a Hydran M2-X. If any item is missing, contact the General Electric Customer Service (the coordinates can be found at the bottom of page 9). 1. One pre-assembled Hydran M2-X, including: •...

  • Page 67: Inspection

    5 in Figure 2-7). • Serial number of the Hydran M2-X (located on the heater plate). Note: Each Hydran M2-X is configured for a specific sensor. If several Hydran M2- X’s are received, take the necessary precautions not to swap the sensors and Hydran M2-X’s.

  • Page 68: Storage

    Hydran* M2-X Instruction Manual 4.1.4 Storage If the Hydran M2-X is to be stored (or unpowered), it is recommended to keep the product in its original shipping box. The plastic cap must be left on the adaptor to protect its threads and the membrane. The product can be stored (or unpowered) for up to six months in a fully enclosed building that is free from damp and extremes in ambient temperature.

  • Page 69: Setting The Date And Time

    • Try each arrow key and verify if the “cursor” moves in the corresponding direction. 10. Make a shadow over the Hydran M2-X’s display and verify the backlighting is functioning. The display should be readable under all ambient lighting conditions.

  • Page 70: Verifying The Battery Voltage

    1. Access Service > Sensor Test > H2 Sensor Test and press Enter. 2. Press Ok to start the test. 3. Wait for a few seconds; the Hydran M2-X’s display should indicate the message Good. If another message is displayed, see Section 8.1.

  • Page 71: Verifying The Standard Tdm Signal (If Used)

    Hydran* M2-X Instruction Manual 6. If necessary, set parameters Relay #1 Mode to Relay #4 Mode and SysOK Relay Mode to their initial mode. 4.2.7 Verifying the Standard TDM Signal (If Used) This procedure requires a Hydran 201Ci-C Controller. 4.2.8 Verifying the Analog Input(s) (If Used) The procedure described below should be performed for each optional 4–20 mA analog output interface installed on the right side of the electronic card cage.

  • Page 72: Verifying The Rs-232 Communications (If Used)

    4.2.10 Verifying the RS-232 Communications (If Used) This verification procedure requires Perception software. 1. With the supplied RS-232 cable, connect the Hydran M2-X to a laptop computer through their DB-9 connector. 2. Access Setup > Comm Setup > Identification.

  • Page 73: Installation

    4.3.1 Overview 4.3.1.1 Typical Installation The Hydran M2-X is typically installed on a full-bore gate or ball valve of a transformer. There are two cables: • The Hydran M2-X’s power supply cable is passed in a flexible (recommended) or rigid steel conduit toward a supervisory control and data acquisition (SCADA) system.
  • Page 74 Determining where to install a Hydran on-line incipient fault monitor on a transformer can sometimes be challenging. A Hydran M2-X monitor can be installed on any available transformer valve. However, care must be taken in selecting a suitable location while respecting the overall dimensions and weight of the monitor.
  • Page 75 Hydran M2-X. Note: If a pump is part of the cooling system, it is recommended that the Hydran M2-X be installed on the discharge side of the pump. Location #B: Drain Valve All transformers are equipped with a drain valve. This location allows for easy access for installation and taking oil samples directly from the Hydran M2-X.
  • Page 76 In case of doubt, consult the engineer responsible for the installation. 10. Do not install the Hydran M2-X on an elbow or a fitting box (see Figure 1-5). The turbulent oil flow at these locations may result in inaccurate gas level readings.

  • Page 77: Verifying The Serial Numbers

    4.3.1.5 Tools, Accessories and Materials Required In addition to the supplied tools and accessories (see the shipping list in Section 4.1.2), you will need the following ones to install the Hydran M2-X (see Figure 4-2): • 3-mm (1/8-in) flat-blade screwdriver.
  • Page 78 Hydran* M2-X Instruction Manual 3/16-in Hex Key with 9-in 1/16-in and 5-32-in Spanner wrench Blade & Cushion Grip T- standard Hex (Allen) L-Keys Handle Roll of PTFE tape TO BE SUPPLIED BY THE INSTALLER 3-mm (1/8-in) Slotted Screwdriver #2 Phillips Screwdriver Adjustable Pliers or Wrench Wire Stripper...

  • Page 79: Preparing The Valve

    4.3.4 Separating the Sensor from the Hydran M2-X Separate the sensor from the Hydran M2-X. Proceed as follows (see Figure below): 1. Remove the set screw (arrow 1 on Figure 4-3 that secures the Hydran M2-X and its sensor together. 1. Remove set screw.
  • Page 80 Hydran* M2-X Instruction Manual Never touch the gas detector or humidity sensor inside the CAUTION Hydran M2-X sensor. Touching them may damage the Hydran M2-X. 1. Rotate sensor connector anti-clockwise (approximately 1/8 turn). 2. Pull connector from sensor. Figure 4-4: Disconnecting the Sensor Cable 6.

  • Page 81: Installing The Sensor Onto The Valve

    Hydran* M2-X Instruction Manual 4.3.5 Installing the Sensor onto the Valve The sensor has 1.5 in (approximately 38 mm) NPT male threads to screw onto the valve. If an adaptor is not required to mount the sensor onto the valve, skip steps 1 to 3.
  • Page 82 Hydran* M2-X Instruction Manual 1. Install clamp around sensor. 2. Install sensor on valve. 3. Tighten using adjustable wrench. Figure 4-6: Mount the Sensor Manually onto the Valve and Tighten it, Using an Adjustable Wrench 7. Screw the sensor manually onto the valve. 8.

  • Page 83: Opening The Valve And Purging Air From The Sensor

    Hydran* M2-X Instruction Manual Bleed screw must be on top, at the “12 o’clock” position when sensor is installed horizontally. O-ring Figure 4-7: The Bleed Screw Must Be on Top, at the 12 O’clock Position 4.3.6 Opening the Valve and Purging Air from the Sensor Perform this step according to company regulations.

  • Page 84: Installing The Hydran M2-X On The Sensor

    Figure 4-8: Opening the Valve and Purging the Air from the Sensor Note: Prior to installing the Hydran M2-X onto the transformer valve, it is recommended to drain approximately 2-4 liters of oil from the valve. This clears any contaminants and moisture that may have accumulated inside the transformer valve.
  • Page 85 Hydran* M2-X Instruction Manual Ensure the sensor cable is not squeezed between the sensor CAUTION and the enclosure. Squeezing the cable may damage it. Page 85 MA-029 Rev. 1.0, 30-Jul-18...

  • Page 86: Grounding The Hydran M2-X Enclosure

    5. Tighten the set screw using the 1/16-in Allen key. 4.3.8 Grounding the Hydran M2-X Enclosure 1. Connect a ground wire to the Hydran M2-X’s external ground lug (see Figure 4-10 on the next page), using a 10-6 AWG copper wire.

  • Page 87: Installing The Cable Conduits

    4.3.9 Installing the Cable Conduits Note the following considerations prior to installation: • All cables connected to the Hydran M2-X must be run through steel conduits or must be armored. • Conduits, or cable armors, should be made of steel to provide shielding against magnetic fields.
  • Page 88 4. Mount a conduit to each conduit fitting. Cables connected to terminal blocks located on one side of the Hydran M2-X must pass through a conduit fitting mounted on the same side. When possible, more than one cable can be run in a single conduit.

  • Page 89: Installing The Cables

    Figure 4-12: Installing Cable Conduits 4.3.10 Installing the Cables The Hydran M2-X’s operation may be affected if wires are not CAUTION connected correctly. Be careful when installing and inserting each wire. Be sure to insert all strands in the terminal;...
  • Page 90 For installation of the RS-485 network link cable, see Section 5.2.1. 4.3.10.2 Alarm Cable (if Used) Proceed as follows: 1. Run the alarm cable through a conduit, from the Hydran M2-X to the SCADA or annunciator system. 2. Verify all wires are identified at both ends.
  • Page 91 4.3.10.5 Analog Output Cable (If Used) Proceed as follows: 1. Run the cable through a conduit, from the Hydran M2-X to the SCADA system. 2. Verify all wires are identified at both ends. 3. Connect the wires to the corresponding I/O terminal block of the Hydran M2- X.

  • Page 92: Verifying The Hydran M2-X Operation

    The parameter configuration detailed in the following pages is written for those who are using the Hydran M2-X’s display and keypad. To set up the communication channel prior to the use of the Perception software, see Section 5.2.2 to Section 5.2.3.2.

  • Page 93: Setting The Parameters Of The History Files

    4. Erase the content of the history files by selecting each option and pressing 4.4.3 Setting the Alarm Parameters 1. Wait at least 30 minutes after powering up the Hydran M2-X or until the gas and moisture levels read by the Hydran M2-X are stable.

  • Page 94: Setting The Readings Parameters

    4.4.7 Configuring the Analog Input(s) (If Used) 1. Access Service > System Config > Current Config. Verify that the displayed list corresponds to the Hydran M2-X configuration. If not, access Service > System Config > Detected Config; the Hydran M2-X detects the installed configuration.

  • Page 95: Verifying The Sensor

    4.4.9 Verifying the Sensor 1. Access Service > Sensor Test (see Section 3.5.1). 2. Press Ok to start the test. After a few seconds, the Hydran M2-X’s display should show message Testing Success. If another message is displayed, see Section 8.1.

  • Page 96: Resetting The Hourly Trend, Daily Trend And Period B

    1. Access Setup > Comm Setup (see Section 3.2.7.2). 2. Disconnect the RS-232 link from the Hydran M2-X’s DB-9 connector. 3. Put the Hydran M2-X’s cover back in place (see Figure 4-13 on the page below). Ensure the gasket is properly positioned between the heater plate and the cover.

  • Page 97: Commissioning

    4.5 Commissioning 1. Wait at least two hours for the Hydran M2-X to stabilize. 2. To verify the reading accuracy of the Hydran M2-X, compare the reading(s) with a recent dissolved gas analysis (DGA). 3. Log the following information and keep it in a safe place: •...

  • Page 98: Communications And Networking

    Hydran* M2-X Instruction Manual 5 Communications and Networking The Hydran M2-X can be used as a stand-alone unit or within a network of up to 32 Hydran M2-X’s. Both configurations can be connected locally to a laptop computer, or remotely to the host computer through a modem or Ethernet (via copper wires or fiber optic).

  • Page 99: Local Communications With A Laptop Computer

    X’s can be linked, through a modem, to the host computer running the Perception software. To do this, the first or last Hydran M2-X in the daisy chain must be linked to a Hydran 201Ci Controller (equipped with a modem) using a supervisory link (see Section 5.2.5).
  • Page 100 Figure 5-3: Remote Communications with a Host Computer via a Modem 5.1.2.1 Communications Modes When using a modem, each Hydran M2-X in the network can be set to one of the following modes: Call on Alarm and Answer Only. For more information, see parameter Comm Mode in Setup >...

  • Page 101: Remote Ethernet Communications With A Host Computer (Via Copper Wires Or Fibre Optic)

    Ethernet cable to the Ethernet port, or a fiber optic cable to the fiber optic port. In the case of fiber optic, the Rx and Tx connections on the Hydran M2-X must be connected respectively to the Tx and Rx connections of the fiber optic converter used with the PC.

  • Page 102: Installing A Network

    Note: For information on the recommended type of cable and for wiring details, see Section D-1. Proceed as follows: 1. Run the RS-485 cables through a conduit, from one Hydran M2-X to the next, to form a daisy chain. Note: For notes and procedures regarding conduits, see Section 4.3.9. The total maximum length for all RS-485 cables in a network is 1,200 m (4,000 ft).

  • Page 103: Configuring The Hydran M2-X's Communication Parameters

    Installing and Configuring a Laptop Computer 5.2.3.1 Connecting a Laptop Computer Proceed as follows: 1. Remove the Hydran M2-X cover. Any Hydran M2-X in the network can be connected to a laptop computer. 2. Connect the supplied RS-232 cable to the Hydran M2-X’s DB-9 connector (located on the right side of the electronic card cage).

  • Page 104: Installing A Hydran 201I Controller

    Relay Mode of each relay from Force Off to Force On and back; this should toggle the state of the Hydran M2-X’s alarm relays. 2. After the test, in the Hydran M2-X Host software, set the Relay Mode of all relays back to Normal.

  • Page 105: Connecting A Hydran M2-X To The Hydran 201I Controller

    5.2.5 Connecting a Hydran M2-X to the Hydran 201i Controller The cable that links the Hydran M2-X to the Hydran 201Ci Controller is called a supervisory link. Note the following considerations prior to installing: • A supervisory link cable connected to a Hydran 201Ci-1 or Hydran 201Ci-4 Controller requires a cable with three twisted pairs and overall shield.

  • Page 106: Alarms

    Hydran* M2-X Instruction Manual 6 Alarms This Chapter explains in detail the alarm features of the Hydran M2-X from an operator’s point of view. The Hydran M2-X is a microprocessor-based instrument with sophisticated alarm features. Note: Appendix I presents the list of all alarm messages that can appear in the Perception software.

  • Page 107: Alarm Conditions

    Table 6-1: Alarm Conditions Monitored by the Hydran M2-X a. The sensor temperature, the base plate temperature and each analog input could generate four alarm conditions. b. Either one of the following cables (or connectors in the connection link): sensor, sensor thermistor or heater plate thermistor.

  • Page 108: Alarm Interface

    The alarm interface between the Hydran M2-X and the user can take different forms. When an alarm is triggered, the following actions are generated: 1. An alarm message flashes on the Hydran M2-X’s display. For the list of all alarm messages that can be displayed by the Hydran M2-X, see Appendix I.

  • Page 109: Sources

    Alarms can be triggered by one or several of the following sources: • Gas sources:  Hydran level: This value is measured by the Hydran M2-X gas detector.  Hydran hourly trend: This value is calculated based on the variation of gas level during a period of time ranging from 1 to 100 hours.

  • Page 110: Detection Of Alarm Conditions

    Before setting the gas or moisture level High alarm condition, the gas and moisture level readings should be monitored over a minimum period of two weeks. A simple method to monitor this value is to consult the Hydran M2-X’s history files using its keypad (see Section 3.4.2).

  • Page 111: Gas Hourly And Daily Trend Alarm Conditions

    Detection of hourly and daily trend alarm conditions is a unique feature of the Hydran M2-X that provides early warning of slowly increasing gas levels. For example, let us consider a transformer with a 50-ppm gas level and a gas level High alarm set point of 150 ppm.
  • Page 112 Table 6-4: Evolution of the Gas Daily Trend Note the following points: • If the Hydran M2-X undergoes a power failure that lasts less than 1/6 of the trend period, the corresponding trend reading remains unchanged when the Hydran M2-X is powered up again.

  • Page 113: System Fault Conditions

    This Section provides a few guidelines to optimize both the hourly and daily trend alarm conditions. 1. The readings of the Hydran M2-X should be monitored over a minimum period of two to three times the trend period before setting these parameters.

  • Page 114: Sources

    6.3.2 System Fault Triggers System fault triggers are alarm conditions that can produce two actions: • Display a message on the Hydran M2-X screen. The alarm message is displayed only if the corresponding alarm set point is adjusted to a value;...
  • Page 115 Hydran* M2-X Instruction Manual Priority Alarm Set Point Fault Trigger Description Low-Low sensor temperature Alarm Lo-Lo SP S. Temp L-Low Alr Low sensor temperature Alarm Low SP S. Temp Low Alarm High High sensor temperature Alarm Hi SP S. Temp Hi Alarm High-High sensor temperature Alarm Hi-Hi SP...

  • Page 116: Alarm Cancellation

    Table 6-8: Sensor Operation and Connections Alarm Conditions 6.4 Alarm Cancellation Proceed as follows: 1. Find and solve the problem. For gas alarm conditions, the Hydran M2-X’s reading generally must be verified by sampling the transformer’s oil and performing a dissolved gas analysis (DGA).

  • Page 117: Alarm Relays

    Section 3.1.2.3). If present, the problem was not corrected; start over from step 1. 6.5 Alarm Relays The Hydran M2-X has five alarm relays. Typically the relays are assigned to alarm conditions as follows: • Relay 1 to gas High alarm conditions •...

  • Page 118: States Of Alarm Relays

    • Normal • Latch • Force On • Force Off The Hydran M2-X’s five alarm relays are independent. A relay can therefore be set to any operation mode regardless of the mode of the other relays. Page 118 MA-029 Rev. 1.0, 30-Jul-18...
  • Page 119 (using the Hydran M2-X’s keypad or using Perception software). 6.5.3.3 Normal and Latch Modes In the Normal and Latch modes: •...

  • Page 120: Operation

    • Periodic, visual reading (once or twice a day) of the gas and moisture level on the display of the Hydran M2-Xs. • On-site verification of alarms messages on the display of the Hydran M2-X’s. For details on the alarms, see Section 3.1.2.1 and Section 3.2.1.

  • Page 121: Alarm Monitoring

    • Connecting the Hydran M2-X’s optional analog outputs to a SCADA system. The Hydran M2-X has analog outputs that allow you to monitor the gas and moisture level evolution.

  • Page 122: Combined Alarm And Analog Outputs Monitoring

    Local Monitoring With a Laptop Computer The local monitoring with a laptop computer method consists of connecting a laptop computer running the Perception software to a Hydran M2-X using the local RS-232 serial communication link. The Perception software performs numerous tasks, among which: •...

  • Page 123: Remote Monitoring With A Host Computer

    7.2.1 Direct Data Reading Data can be read directly as follows: • With the Hydran M2-X: Its user interface includes a keypad and a display. For details, see Chapter 3. • With the Perception software: A host computer running the Perception software remains the easiest way to read data.

  • Page 124: History Files Data Reading

    7.2.2 History Files Data Reading The history files consist of information (self-explanatory message, date and time of occurrence, etc.) loaded by the Hydran M2-X when an event happens (alarm triggering, parameter modification by the user, etc.) and at fixed, configurable logging rates.

  • Page 125: Troubleshooting

    8.1 Alarm Messages that can be Displayed due to System Fault Conditions Appendix I presents the list of all alarm messages that can be displayed by the Hydran M2-X. This Section contains, in alphabetical order, all alarm messages that can be displayed due to system fault conditions. 8.1.1 Battery L-Low Alarm •...

  • Page 126: Temp Hi Alarm

    Hydran* M2-X Instruction Manual Batt. L; SysOK Relay;FaultTrig. submenu; see Section 3.2.3. Batt.Alr L (alarm set point); Service;VoltPile submenu; see Section 3.3.2.4. BattAlr Delay; Service;VoltPile submenu; see Section 3.3.2.4. • Alarm cause(s): Battery voltage below the Alarm Low SP alarm set point. Replace the battery within the next nine months.

  • Page 127: Gas C.open Alarm

    3. Verify thoroughly the chain of connections for this cable, including the connectors. 4. Once the problem is fixed, perform another sensor test to reset the Hydran M2-X and cancel the alarm. 5. Wait at least two minutes. Verify the alarm has disappeared and, if applicable, the corresponding temperature has returned to a normal value.

  • Page 128: Gas Sens. Bad Alarm

    Replace the sensor as soon as possible. Note: The Hydran M2-X’s sensor is verified twice a month (the first and fifteenth days of the month at midnight); the relevant parameters are recorded in the Service history file. This test can also be performed manually using the Force Sensor Test command (in the Service submenu), but no results are recorded.

  • Page 129: Temp Hi Alarm

    TempoAlr Delay; Temperature submenu; see Section 3.3.2.1. • Alarm cause(s): Temperature of the sensor below the Alarm Lo-Lo SP alarm set point The sensor sensitivity is very low; repair the Hydran M2-X’s dynamic oil sampling system. 8.1.12 S. Temp Hi Alarm •...

  • Page 130: And Rs-485 Communications

    Proceed as follows: 1. The oil is probably too hot at the location where the sensor is installed; install the Hydran M2-X at another location on the transformer tank, preferably at the bottom. For details on typical installations, see Section 4.3.1.

  • Page 131: No Communication Between The Host Computer And The Network Of Hydran 201Ci Systems

    Hydran* M2-X Instruction Manual 1. Ensure the CommChannel parameter (communication channel; Communica- tion submenu; see Section 3.2.7) of all Hydran M2-X’s connected to the H201Ci Controller is set to Supervisory Link. 2. Ensure the BaudRate parameter (data transmission speed; Communication submenu) of all Hydran M2-X’s connected to the H201Ci Controller is identical...

  • Page 132: Alarms

    8.4 Alarms 8.4.1 Intermittent Gas Alarms 1. Alarm set points are too low. Consult the Hydran M2-X’s Short Term and Long Term history files, and compare the set points with the variations of gas level, hourly trend and daily trend.

  • Page 133: Inaccurate Gas Readings

    1. Verify the transformer’s level of fault gases-in-oil immediately by performing a dissolved gas analysis (DGA; see Section 9.4.2. 2. Ensure the valve (on which the Hydran M2-X is installed) is fully open. 3. Confirm the valve type is acceptable (full bore, gate or ball, no restriction between valve and tank).

  • Page 134: Moisture Readings Remain At 0

    Hydran* M2-X Instruction Manual 8.4.6 Moisture Readings Remain at 0% Probable causes: 1. If there is no display (see Figure 3-1), the 24-Vdc power supply of the Hydran M2-X has failed. Verify the wiring at both ends of the dc power supply cable. 2.

  • Page 135: Maintenance

    Do not use cleaning agents or chemicals, as they may CAUTION damage the plastic parts or lettering. 9.2 Replacing the Fuse In case the fuse of the Hydran M2-X has blown off, remove the fuse holder and replace the fuse. Page 135 MA-029...

  • Page 136: Replacing The Battery

    Refer to Appendix G for the procedure. 9.3.1 Battery Specification For Hydran M2-X units built as from 2013 (S/N: 13xxxxxxxx), the battery specifications are the following: • GE part number: 18670. • Battery size and type: 1/2AA, Lithium 3.6 V, 1.2 Ah.

  • Page 137: Battery Life

    The shelf life of the battery in the Hydran M2-X is 2.5 years when the unit is stored at 25 °C (77 °F). If the Hydran M2-X has been stored for more than one year, it is strongly recommended to replace the battery before installation and powering-up.

  • Page 138: History Files Verification

    • Verification of sensor (see Section 9.5.6) Table 9-1: Maintenance Routines and their Frequency The Hydran M2-X sensor is tested automatically twice a month, and the results are stored in the Service history file. 9.4.1 History Files Verification Frequency: Annually or on alarm In addition to the annual or on-alarm verification, the user must also read and save regularly the Hydran M2-X’s history files, using the Perception software.
  • Page 139 • Nitrogen (N • Oxygen (O The Hydran M2-X gives a composite reading of the first four gases in the above list, in other words the gases generated by transformer incipient faults. This reading can be compared to the DGA results using the following formula:...

  • Page 140: Maintenance Verification

    Reading Monoxide (CO) (ppm) 1,000 Table 9-2: Gas Reading Comparisons Between DGA and Hydran M2-X 9.5 Maintenance Verification Frequency: Annually or on alarm due to system fault conditions. Please advise the station operator prior to maintenance. Working inside the Hydran M2-X may trigger unwanted...

  • Page 141: Heater, Display And Keypad Verification

    WARNING terminals. 9.5.2 Heater, Display and Keypad Verification 1. Touch the heater plate. If warm, this indicates that the Hydran M2-X is being heated to maintain the temperature of the sensor close to the corresponding set point. 2. Ensure the Hydran M2-X is in Main Display mode. For details, see Section 3.1.2.3.

  • Page 142: Analog Inputs Verification (If Connected)

    Note: Skip this step if a laptop is used for the present verification process. 9.5.9 RS-485 Communications Verification (for a Network) If the Hydran M2-X is not polled regularly or if the last monitoring indicates that one or more units do not answer, follow the procedure described in Section 5.2.3.3.

  • Page 143: Decommissioning The Hydran M2-X

    The decommissioning of the Hydran M2-X must be executed by trained service personnel only. 1. Switch OFF the circuit breaker to which the power cable of the Hydran M2-X unit is connected. 2. Verify, with a voltmeter, there is no AC or DC voltage on the power cable.

  • Page 144: Removing The Hydran M2-X

    Use a bucket to collect oil. 2. Close the valve to which the Hydran M2-X is mounted. 3. Remove the sensor clamp using the spanner wrench. Refer to Figure 4-3. 4. Carefully separate the sensor from the enclosure. Put aside the electronic enclosure.

  • Page 145: Appendix A. Technical Specifications For The Hydran M2-X

    Hydran* M2-X Instruction Manual Appendix A. Technical Specifications for the Hydran M2-X A-1. General GENERAL Description Continuous, on-line, intelligent gas-in-oil moisture transmitter with optional, external sensors monitoring Components Combined dual-function sensor and electronic enclosure Response Hydrogen (H ), carbon monoxide (CO), acetylene (C...
  • Page 146 Hydran* M2-X Instruction Manual Hydran M2-X H2 accuracy is specified up to 2000ppm; at concentrations above 2000ppm the device continues to provide trending to 5000ppm, but potentially outside the published accuracy specification. This is because the Hydran M2-X H2 calibration and performance is optimised and tested in the factory in the key range of concentrations for Transformer diagnostics.
  • Page 147 Hydran* M2-X Instruction Manual • Inductive load: 1.5 A (ac/dc) Communications • One RS-232 port for local laptop computer connection Ports • One RS-485 port for connection to local Hydran network or remote communication Optional 1 of the following to be specified when ordering: Communications •...
  • Page 148 Hydran* M2-X Instruction Manual Environment Meets standards IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-6, IEC 60068-2-30 Safety Meets standard IEC 61010-1/EN 61010-1 Weight • Installed: 7.5 kg (16.5 lb) • Shipping: 9 kg (20 lb) ENVIRONMENTAL CONDITIONS Operation • Ambient temperature: -40 to +55 °C (-40 to +131 °F) •...

  • Page 149: A-2. Dimensions

    Hydran* M2-X Instruction Manual A-2. Dimensions A.2.1. Enclosure Dimensions Figure A - 1: Dimensions of the Hydran M2-X Enclosure Front View Page 149 MA-029 Rev. 1.0, 30-Jul-18...
  • Page 150 Hydran* M2-X Instruction Manual Figure A - 2: Dimensions of the Hydran M2-X Enclosure - Top View Figure A - 3: Bottom Clearance Page 150 MA-029 Rev. 1.0, 30-Jul-18...

  • Page 151: Optional Adaptors Dimensions

    Hydran* M2-X Instruction Manual A.2.2. Optional Adaptors Dimensions Figure A - 4: Dimensions of the 2in NPT Reducing Bushing (Optional: Part Number 16296) Figure A - 5: Dimensions of the 1in to 1.5in Adaptor (Optional; Part Number 16480) Page 151 MA-029 Rev.
  • Page 152 Hydran* M2-X Instruction Manual Figure A - 6: Dimensions of the 1.5in NPT Finned, High Temperature Adapter (Optional; Part Number 16290) Page 152 MA-029 Rev. 1.0, 30-Jul-18...

  • Page 153: Maximum Dimensions

    Hydran* M2-X Instruction Manual A.2.3. Maximum Dimensions Figure A - 7: Maximum Distance for Valves 1.5in or More in Diameter Figure A - 8: Maximum Distance for 1in Diameter Valves Page 153 MA-029 Rev. 1.0, 30-Jul-18...

  • Page 154: Appendix B. Installation Checklist

    4.3.4 Separating the Sensor from the Hydran M2-X 1. Remove the set screw that secures the Hydran M2-X and sensor 2. Remove the sensor clamp using the spanner wrench 3. Carefully pull the sensor a few centimeters from the enclosure 4.
  • Page 155 1. Push the sensor cable connector into the sensor connector 2. Rotate the connector clockwise (approximately 1/8 of a turn 3. Position the enclosure and push the Hydran M2-X onto the sensor 4. Install the sensor clamp and tighten it using the spanner wrench 5.
  • Page 156 Hydran* M2-X Instruction Manual 4.3.8 Grounding the Hydran M2-X Enclosure 1. Connect a ground wire to the Hydran M2-X’s external ground lug 2. Ground the other end of this cable to the transformer ground grid 4.3.9 Installing the Cable Conduits 1.
  • Page 157 3. Connect the wires to the ac power supply terminal block 4. Connect the other end of the cable to the power source 4.3.11 Verifying the Hydran M2-X Operation 1. Fasten the cover with the four screws 2. Verify all cable entry points to ensure they are watertight 3.
  • Page 158 Hydran* M2-X Instruction Manual 2. Set the Gas Level Alarm parameters (log values in Table B-1) 3. Set the Gas Hourly Trend Alarm parameters (log values in Table B-1) 4. Set the Gas Daily Trend Alarm parameters (log values in Table B-1) Page 158 MA-029 Rev.
  • Page 159 Hydran* M2-X Instruction Manual Gas Hourly Trend Gas Daily Trend Parameter Name Gas Level Alarm Alarm Alarm Alarm Hi SP Alarm Hi-Hi SP Alarm Delay Alarm Hi Relay 1[ ] 2[ ] 3[ ] 4[ ] 1[ ] 2[ ] 3[ ] 4[ ] 1[ ] 2[ ] 3[ ] 4[ ] Alarm Hi-Hi Relay 1[ ] 2[ ] 3[ ] 4[ ]...
  • Page 160 Hydran* M2-X Instruction Manual Parameter Name Sensor Temp. Heater Plate Temp. Alarm Alarm Alarm Low SP ˚C ˚C Alarm Hi SP ˚C ˚C Alarm Hi-Hi SP ˚C ˚C Alarm Delay Alr C. Open Relay 1[ ] 2[ ] 3[ ] 4[ ] 1[ ] 2[ ] 3[ ] 4[ ] Alarm Low Relay 1[ ] 2[ ] 3[ ] 4[ ]...
  • Page 161 Hydran* M2-X Instruction Manual • Set the Sens. Temp Avg Per. parameter to _________ hours Parameter Name Input #1 Input #2 Input #3 Input #4 Alarm Low-Low Alarm Low SP Alarm Hi SP Alarm Hi-Hi SP Alarm Delay Alarm L-L Relay 1[ ] 2[ ] 1[ ] 2[ ] 1[ ] 2[ ]...
  • Page 162 3. Set Hydran PPM Period B to 0 hour 4. Wait five minutes 5. Set the above parameters to their default value (24 hours, 30 days and 24 hours) 4.4.14 Conclusion Fasten the Hydran M2-X’s cover Commissioning Page 162 MA-029 Rev. 1.0, 30-Jul-18...
  • Page 163 3. Set communication parameters: • Set DB9 Baud Rate to _________ bps • Set 485 Baud Rate to _________ bps (identical for all Hydran M2-X’s) • Set Comm Mode to Answer Only or [ ] Call on Alarm [ ] •...
  • Page 164 1. Run the supervisory link cable through a conduit from the first or last Hydran M2-X in the daisy chain 2. Ensure all wires are identified 3. Connect the wires to the Hydran M2-X’s termination block 4. Connect the other end of the cable to the Hydran 201Ci Controller Page 164 MA-029 Rev.

  • Page 165: Appendix C. Functional Block Diagram

    Hydran* M2-X Instruction Manual Appendix C. Functional Block Diagram Figure C - 1: Functional Block Diagram of the Hydran M2-X Page 165 MA-029 Rev. 1.0, 30-Jul-18...

  • Page 166: Appendix D. External Connections

    To RS-485 In of From RS-485 other Hydran Out of other M2-X Hydran M2-X or Hydran 201Ci Figure D - 1: General Wiring of the RS-485 Terminal Block The RS-485 link requires instrumentation grade or armored cables (shielded triad). Table D-1 on the next page describes the connections for the TDM and RS-485 network link terminal block.
  • Page 167 The shield at this terminal is internally connected to ground through a spark gap and capacitor. The other end of the cable must be connected to the In terminal of the next Hydran M2-X or to the Hydran 201Ci Controller.
  • Page 168 Figure D - 2: Wiring Details of the RS-485 between 3 or more Hydran M2-Xs Figure D - 3: Wiring of the Supervisory Link between a Hydran M2-X and a Hydran 201Ci-1 Controller Note: The Hydran 201Ci-1 Controller can only display the gas level measured by the Hydran M2-X, not the moisture level.
  • Page 169 Hydran* M2-X Instruction Manual Figure D - 4: Wiring of the Supervisory Link between a Hydran M2-X and a Hydran 201Ci-C Controller Figure D - 5: Wiring of the Supervisory Link between a Hydran M2-X and a Hydran 201Ci-4 Controller Note: The Hydran 201Ci-1 Controller can only display the gas level measured by the Hydran M2-X, not the moisture level.

  • Page 170: D-2. Analog Input Terminal Block

    Hydran* M2-X Instruction Manual Figure D - 6: Wiring of the RS-485 Network Link between a Hydran M2-X and a D25 D-2. Analog Input Terminal Block Table D-2 describes the connections for the analog input terminal block. This terminal block is located on the right side of the electronic card cage (see Figure D-7 on the next page).
  • Page 171 Hydran* M2-X Instruction Manual Note: This optional Analog Input board can be installed at any of the four I/O locations. Figure D - 7: General Wiring of the Analog Input Terminal Block Active 2-wire 4-20mA Sensor Figure D - 8: Wiring of Self-Powered, Analog Inputs Page 171 MA-029 Rev.

  • Page 172: D-3. Analog Output Terminal Blocks

    Hydran* M2-X Instruction Manual 2-wire 4-20mA Loop-powered Sensor 3-wire, 4-20mA Loop-powered Sensor Figure D - 9: Wiring of Two-Wire, Loop-Powered, Analog Inputs Figure D - 10: Wiring of Three-Wire, Loop-Powered, Analog Inputs D-3. Analog Output Terminal Blocks These terminal blocks are located on the right side of the electronic card cage (see Figure D-11).
  • Page 173 Hydran* M2-X Instruction Manual Note: This optional Analog Output board can be installed at any of the four I/O locations. Figure D - 11: General Wiring of the Analog Output Terminal Block The recommended cable is: individually twisted and shielded pairs of copper multi-stranded wires, with a shield, a steel armor and a PVC overall jacket.

  • Page 174: D-5. Limitations

    Hydran* M2-X Instruction Manual D-4. “4-20” mA Terminal Description From (External) Comments 4-20 mA = 0-2,000 Configuration ppm; 500-Ω maximum 4-20 mA analog input- load; 2,500V rms SCADA system isolation level; for either 4-20 mA analog input+ ppm gas level. %RH or Shield oil temperature monitoring...

  • Page 175: D-6. Converting Current To Voltage

    Hydran* M2-X Instruction Manual D-6. Converting Current to Voltage Recording devices with voltage inputs can be converted to current inputs by shunting their input terminals with an appropriate resistor. The resistor value is calculated as follows: Resistor ( ) = 50 x Input voltage range of recording device. For example, a chart recorder with an input range of 1 V uses a 50- (1 %, 1 W) resistor across the recorder input.
  • Page 176 Hydran* M2-X Instruction Manual Terminal Description From (External) Comments Line AC supply is 110Vac ±15% Live side of AC supply or 230Vac ±15% and from 47 to 63Hz. Maximum Neutral Other side of AC supply load is 4A. Enclosure Unless otherwise required ground by the application local Use external ground lug...

  • Page 177: D-8. Alarm Contacts Terminal Block

    Hydran* M2-X Instruction Manual D-8. Alarm Contacts Terminal Block The Hydran M2-X is equipped with five SPDT (single pole double throw) alarm relays. The alarm contacts of these relays are located on the left side of the electronic card cage (see Figure D-15 on the next page). The connections are described in Table D - 5.
  • Page 178 Hydran* M2-X Instruction Manual To (External) Comments Terminal Relay Description SCADA system, Hydran User-configurable; 201Ci-1 or Hydran normally assigned to Common 201Ci-4 gas High alarms User-configurable; normally assigned to Common gas High-High alarms User-configurable; normally assigned to Common moisture High alarms User-configurable;...

  • Page 179: Appendix E. Installing I/O Modules

    Note: Installing I/O modules requires only a Phillips screwdriver. Proceed as follows: 1. Remove the four screws holding in place the Hydran M2-X cover and remove this cover. See Figure 4-11. 2. Remove the four screws holding in place the cover plate of the electronic card cage and remove this plate.
  • Page 180 10. Put back and tighten the four screws holding in place the cover plate of the electronic card cage. See Figure E-1 E-3 above. 11. Put back the Hydran M2-X cover. 12. Put back and tighten the four screws holding the cover in place. See Figure 4-11.

  • Page 181: Appendix F. Upgrading The Embedded Programs (Firmware)

    3. Connect a null modem cable between the Hydran M2-X’s Local RS-232 connector and the laptop computer’s COM port. 4. Remove the Hydran M2-X’s cover and power off the Hydran M2-X by unscrewing the fuse holder. Then, power on the Hydran M2-X by screwing the fuse holder back in place while pressing the left and middle context keys.
  • Page 182 • Click Download to start the program upgrade. Figure F - 1: Upgrading the Embedded Program Using BootDownloader.exe 7. The Hydran M2-X now displays the screen below. The HM2-X Downloader for Boot Mode screen now displays status messages in the Status: area as well as the progress percentage at the bottom;...
  • Page 183 Hydran* M2-X Instruction Manual 8. Once the upgrade is completed, the Hydran M2-X reboots automatically and then resumes normal operation. Ensure the upgrade process has been successful by verifying the version number of the controller board program. To do so, access Main Menu > Service > Software Version using the Hydran M2-X’s keypad.

  • Page 184: Appendix G. Replacing The Battery

    • View Readings > View History Data To replace the battery, proceed as follows: Note: Step 1 below can be skipped if the Hydran M2-X was never put in service and if the Hydran M2-X’s default parameter values have not been changed.
  • Page 185 9. Put back in place the cover of the electronic card cage and fasten it using the two screws removed during step 4. 10. Reconnect the Hydran M2-X’s power supply, reinstall the cover and power on the Hydran M2-X. Note: Except for the sensor and calibration parameters, all Hydran M2-X’s parameters are now reset to their hardware default values.

  • Page 186: Appendix H. History File Messages

    Hydran* M2-X Instruction Manual Appendix H. History File Messages This Appendix complements Section 3.4.2. The messages are sorted in alphabetical order: Event Message Description AnalogMode chg Modification of the analog output’s operation mode Batt.Alr Ack Battery voltage alarm has been acknowledged BattAlr L chg Modification of the Low battery voltage alarm’s set point BattAlr L OFF...
  • Page 187 Gas level Low-Low alarm turned on GasDelay chg Modification of a gas level alarms’ delay H201 ID chg Modification of the Hydran M2-X identification number HistoEvent Clr Events history file has been cleared (erased) HistoLogRate c Modification of the logging rate of the Short Term history...
  • Page 188 PowStat ID chg Modification of the power station’s identification number ProgRam Bad RAM memory test of program data has failed ProgUpgraded Hydran M2-X’s embedded software has been upgraded RelayMode chg Modification of a relay’s operating mode Page 188 MA-029 Rev. 1.0, 30-Jul-18...
  • Page 189 Setup lost alarm turned off Set-up Lost ON Setup lost alarm turned on Soft WatchDog Reset of Hydran M2-X induced by the software watchdog Sp Span chg Modification of the sensor temperature set point’s range STempAlr Ack Sensor temperature fail alarm has been acknowledged STempAlr H chg Modification of the sensor temperature High alarm’s set...

  • Page 190: Appendix I. Alarm Messages

    Hydran* M2-X Instruction Manual Appendix I. Alarm Messages Table I-1 below presents the list of all alarm messages that can be displayed by the Hydran M2-X and that can appear in the Perception software Alarm Name Alarm Message on the...
  • Page 191 Hydran* M2-X Instruction Manual Alarm Name Alarm Message on the Alarm Message in the Hydran M2-X Display Perception Software Low-Low Alarm Open Base Plate Temperature B.P. Temp Low Alarm Base Plate Temp Low Low Alarm Base Plate Temperature Hi B.P. Temp Hi Alarm...
  • Page 192 H2 Sensor Test Bad Now Alarm Sensor Card #1 Comm. S.Card Comm Err Alr Sensor Comm. Failure Error Alarm Table I - 1: Alarm Messages on the Hydran M2-X Display and on the Perception Software Page 192 MA-029 Rev. 1.0, 30-Jul-18...

  • Page 193: Appendix J. Extracting An Oil Sample

    9. Repeat steps 2 to 7 to extract the oil sample. 10. Purge all air bubbles from the syringe. 11. Fill an identification card for this sample. Indicate the relative humidity and temperature readings performed by the Hydran M2-X at the time of extraction. Page 193 MA-029...

  • Page 194: Appendix K. Unit Conversions

    × 100 (���������������� 1) �������� where PPM and PPMs are in weight/weight In Equation 1, RS is measured by the Hydran M2-X. We need to know the PPMs in order to calculate the PPM. Page 194 MA-029 Rev. 1.0, 30-Jul-18...
  • Page 195 (Equation 3) 273+�� This is the equation used by the Hydran M2-X to convert the RS into PPM, and the resulting PPM value can be read on the display. It is important to note that the value displayed by the Hydran M2-X is accurate only for the new Voltesso 35 oil .
  • Page 196 Table K - 1: Water Solubility as a Function of the Oil Composition and Temperature Figure K - 1: Water Solubility Curves According to Different Sources The Hydran M2-X measures the relative saturation of water in the oil, which gives the following information: Relative saturation of the oil at the operation temperature •...

  • Page 197: Appendix L. Other Products And Accessories

    L-1. Hydran 201C-i-C Communications Controller The Hydran 201Ci -C Communications Controller (H201Ci-C) is used as an interface between a network of Hydran M2-X’s and a remote host computer. The H201Ci -C does not have a numerical display, analog outputs or alarm contacts, see the illustration below.
  • Page 198 Hydran* M2-X Instruction Manual Vibration absorbing rubber pads Figure L - 2: Vibration-Absorbing Rubber Pads Page 198 MA-029 Rev. 1.0, 30-Jul-18...

  • Page 199: Appendix M. Glossary

    Hydran* M2-X Instruction Manual Appendix M. Glossary Ampere Alternating Current ACKnowledge A/D or ADC Analog-to-Digital Converter Alarm Condition when a data point value exceeds a set point Alarm Contact Contact of an alarm relay Analog Output Analog signal proportional to gas or moisture level ANSI American National Standards Institute ASTM...
  • Page 200 Hydran M2-X’s memory Human/Machine Interface Water H 2 O Host Computer Computer connected remotely to a Hydran M2-X or a network of Hydran M2-X’s Hourly Trend Variation during a time period (hours) Hydran 201Ci Refer to one of the Hydran 201 family of controllers: Hydran 201Ci-C, 201Ci-1 or 201Ci-4.
  • Page 201 Liquid Crystal Display Light-Emitting Diode LL or Lo-Lo Low-Low alarm Local Network Local network of Hydran M2-X units or Hydran 201i systems using RS-485 link Local Site User location where the data of the remote site is being analyzed milli-Ampere...
  • Page 202 Ability of an instrument to measure the same input to the same value over a short period of time Response Time Time a system (Hydran M2-X) unit takes to react to a given input (gas concentration change) Radio-Frequency Interference Relative Humidity in %...
  • Page 203 Time Division Multiplexing Teflon polyTEtraFLuOrethyleNe TradeMark Technischer Überwachungs-Verein (Technical Inspection Association) User Person operating the device (Hydran M2-X) User-Friendly An interface application easy to use User Interface Means provided to interface with a device (display, keypad, push button, etc.) µV...
  • Page 204 Hydran* M2-X Instruction Manual GE Grid Solutions (UK) Ltd Lissue Industrial Estate East Lissue Walk, Lisburn, BT28 2LU, United Kingdom Tel: +44 28 9262 2915 Fax: +44 28 9262 2202 Email: ge4service@ge.com Web: www.gegridsolutions.com/md.htm Customer Service Center (24 hours a day, 365 days a year)

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