Megger MTR105 User Manual
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Megger MTR105 User Manual

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  • Page 1 B a k e r I n s t r u m e n t s MTR105 Rotating Machine Tester User Guide...
  • Page 2 Megger Ltd reserves the right to alter the specification of its products from time to time without notice. Although every effort is made to ensure the accuracy of the information contained within this document it is not warranted or represented by Megger Ltd. to be a complete and up - to - date description.
  • Page 3 Directive 2014/53/EU. Other equipment manufactured by Megger Instruments Limited described in this user guide is in compliance with Directives 2014/30/EU and 2014/35/EU where they apply. The full text of Megger Instruments EU declarations of conformity are available at the following internet address: uk.megger.com/company/about-us/eu-dofc www.megger.com...

  • Page 4: Table Of Contents

    Instrument Controls ......................7 Instrument Display ......................8 Instrument Controls......................9 Instrument Connections and Leads ................. 10 2.8.1 View on top of MTR105 ....................10 3. Instrument Set up ......................11 Warnings and exception conditions ................11 Power ..........................11 3.2.1 First use ......................... 11 3.2.2 Turn the instrument on and off ..................
  • Page 5 Exporting entries to USB ....................65 12. Firmware update .....................68 13. Error and Warning Conditions................70 13.1 Failed export ........................70 13.2 Fuse Failure ........................70 13.3 Battery Low ........................70 14. Settings ........................71 14.1 IR Test Settings ........................ 71 www.megger.com...
  • Page 6 16. Specifications ......................80 17. Accessories and Equipment ..................83 17.1 Included Accessories ....................... 83 17.2 Optional Accessories....................... 83 18. Calibration, Repair and Warranty ................84 18.1 Return procedure ......................84 19. Decommissioning ....................85 19.1 WEEE Directive ....................... 85 19.2 Battery disposal ......................85 www.megger.com...
  • Page 7 www.megger.com...

  • Page 8: Safety Warnings

    After an insulation test, the instrument must be left connected until the circuit has been discharged to a safe voltage. „ The instrument must not be used if any part of it is damaged or if the terminal shutter is missing. www.megger.com...

  • Page 9: Test Lead Safety Warnings

    All test leads, probes and crocodile clips must be in good order, clean and with no broken or cracked insulation. „ Verify the integrity of the test leads before use. Only “Megger” approved test leads must be used with this product.

  • Page 10: Safety, Hazard And Warning Symbols On The Instrument

    NOTE: The warning will not operate if the instrument is set to Off. Internal Error Warning Internal Error Warning switch off and back on. Contact Megger if not cleared. Read the User Guide Refer to the user guide if this message shows.

  • Page 11: Introduction

    In addition the MTR105 also incorporates temperature measurement and compensation (for IR tests), direction of rotation plus supply phase rotation tests. All these new test abilities go together to make the MTR105 a real world, versatile, hand held test instrument for rotating machinery.

  • Page 12: Applications

    Introduction Applications The MTR105 is an OFF LINE motor tester that can be used on small to medium sized rotating machines, typically up to 500 hp. Typical applications include but are not limited to: „ New manufactured motor – test in production process.

  • Page 13: Instrument Controls

    Introduction Instrument Controls Item Description Item Description External electrical connections Save Display Test Soft keys (multifunction) Information / Lock / OK Buzzer control Rotary selection switch Back-light control www.megger.com...

  • Page 14: Instrument Display

    Introduction Instrument Display Item Description Item Description Status / Mode Soft key functions Battery indicator Secondary field Primary field Time Status symbols www.megger.com...

  • Page 15: Instrument Controls

    Insulation Resistance Test, 250 V (Red) (Green) Motor direction of rotation (Light grey) Insulation Resistance Test, 500 V (Red) Digital Low Resistance Ohmmeter (Yellow) Insulation Resistance Test, 1 kV (Red) Continuity and diode test (Orange) Insulation Resistance Test, user selectable voltage (Red) www.megger.com...

  • Page 16: Instrument Connections And Leads

    Front The external connections are all situated on top of the MTR105. A sliding cover is installed to prevent any other connection being made at the same time as the USB port. Connection to the USB port can only be made when the sliding cover is pushed completely to the back of the instrument.

  • Page 17: Instrument Set Up

    Alert for internal fault. Power 3.2.1 First use NOTE: Before the MTR105 can be turned on the battery isolation tab must be removed. 1. Remove the battery cover. 2. Pull the battery isolation tab clear of the battery cells. 3. Replace cover.

  • Page 18: Power Options

    2. Turn the instrument OFF by turning the rotary switch to the OFF position to deactivate the instrument. NOTE: The MTR105 switches off after a period of inactivity, which is user adjustable, Refer to 14. Settings on page 71. To start the instrument again rotate the mode switch to Off and then select a mode or press the TEST button to wake the instrument up.

  • Page 19: Insulation Resistance Tests

    Two Terminal and Guard The MTR105 is fitted with a guard terminal. The guard terminal is used to conduct leakage currents away from the measured circuit to reduce errors. The guard terminal is only used for insulation testing and as and additional connection in 3-phase testing. The lead is coloured blue.

  • Page 20: Automatic Discharge

    After the automatic discharge loop has finished, the secondary result is displayed in the secondary field again and the buzzer sounds for a second. Insulation Resistance (IR) Test 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 21 LOCK button is pressed to stop the test. To enable this Refer to 14.1.3 Lock on page 72 NOTE: As the test starts the Soft Key Function field disappears, secondary and function fields drop to the bottom of the screen. Sub-mode initials separate the secondary fields. www.megger.com...

  • Page 22: Buzzer Settings

    The buzzer threshold is shown just above the status indicator. The buzzer has 3 options and is set by pressing the fixed key. The options are off (default), on and optical. Press and release the buzzer key until the desired function is reached. www.megger.com...

  • Page 23: Temperature Compensation

    For this procedure Refer to 14.1.4 Temperature compensation on page 72 If a temperature measurement hasn’t been made, the left of the secondary field will show -- °C. If a test is attempted the unit will display Temperature missing. www.megger.com...

  • Page 24: Phase (3P)

    If the temperature reading is more than 30 minutes old, a red time stamp will be displayed in the secondary field above the temperature reading. 3 Phase (3P) 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 25 ƒ The secondary field displays actual voltage output and the current measured. 8. When the test has completed: The primary field displays the test results and also the ƒ actual voltage output and the current measured. www.megger.com...

  • Page 26: Polarization Index (Pi)

    NOTE If the test was stopped before completion, it cannot be saved. 10. To restart the test press the TEST button again. Polarization Index (PI) 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 27 7. During the tests, The primary field displays the test results. ƒ The secondary field displays actual voltage output and the ƒ current measured. 8. When the test has completed, ƒ The primary field displays the test results. www.megger.com...

  • Page 28: Timed (T(S))Test

    NOTE If the test was stopped before completion, it cannot be saved. 10. To restart the test pressing the TEST button again. Timed (T(s))Test 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 29 ƒ The secondary field displays actual voltage output and the ƒ current measured. 8. When the test has completed, The primary field displays the test results. ƒ The secondary field displays actual voltage output and the ƒ current measured. www.megger.com...

  • Page 30: Dielectric Absorption Ratio (Dar)

    ID it was saved to. 10. To restart the test pressing the TEST button again. Dielectric Absorption Ratio (DAR) 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 31 ƒ The secondary field displays actual voltage output and the ƒ current measured. 8. When the test has completed, The primary field displays the test results. ƒ The secondary field displays actual voltage output and the ƒ current measured. www.megger.com...

  • Page 32: Variable Voltage

    Variable voltage 1. Set the voltage required under the variable voltage test setting. Refer to 14.1.7 Variable Voltage on page 73 2. Connect the test leads to the MTR105. 2.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 33 5. The display will show the selected voltage, in this case 10 V. 6. Press soft keys 2 and 3 to move the carousel left or right through sub-modes. IR is default, scroll through to 3P, PI, T(s) DAR. 7. Run the chosen test as described in the previous sections. www.megger.com...

  • Page 34: Voltmeter

    Voltmeter 5. Voltmeter TRMS (True RMS) Default is TRMS mode shows true RMS voltage. In TRMS mode the MTR105 will measure both ac and dc components of the supply voltage (ac+dc). 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.

  • Page 35: Ac Or Dc

    Voltmeter AC or DC 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram. NOTE: When the diagram is displayed a test cannot be performed. Press Information ( ) button to return to the test screen.

  • Page 36: Supply Phase Rotation

    ID it was saved to. Supply Phase Rotation 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 37 The secondary field displays frequency. ƒ 6. The result can be saved by pressing the SAVE button. A message will inform you the data was saved and which asset ID it was saved to. www.megger.com...

  • Page 38: Continuity

    NOTE: Results of measurements can be adversely affected by impedances of additional operating circuits connected in parallel or by transient current. Uni-direction 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 39 Press the TEST button until the NULL (symbol) appears on the screen. The ohmic value on the primary screen will read 0 Ω. 10. Connect the test leads to the unit under test. NOTE: The connection is for illustrative purposes only showing winding resistance across phase 1. www.megger.com...

  • Page 40: Bi-Direction

    The secondary field displays test current and the previous ƒ resistance value in Uni direction. Bi-direction 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram. NOTE: When the diagram is displayed a test cannot be performed.
  • Page 41 The primary field displays the result of the true resistance of the unit under test ƒ The secondary field displays the test current and the resistance values in both directions - highest value shown in Primary. ƒ The test in bi-direction mode runs continually www.megger.com...

  • Page 42: Diode Test

    Continuity Diode test 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram. NOTE: When the diagram is displayed a test cannot be performed. Press Information ( ) button to return to the test screen.
  • Page 43 NOTE: The user is responsible for connecting test probes across the diode under test. There is no information displayed in the secondary field at this point. The only information to display is the diode drop voltage if the instrument senses a voltage across the device. If no current flows the main display will show “O/C”. www.megger.com...

  • Page 44: Dlro Digital Low Resistance Ohmmeter

    DLRO Digital Low Resistance Ohmmeter 7. DLRO Digital Low Resistance Ohmmeter Manual single direction test 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram. NOTE: When the diagram is displayed a test cannot be performed.
  • Page 45 (C1-C2) and potential (P1-P2) circuits. 9. The result can be saved by pressing the SAVE button. A message will inform you the data was saved and which asset ID it was saved to. 10. To restart the test, press the TEST button again. www.megger.com...

  • Page 46: Auto Single Direction Test

    DLRO Digital Low Resistance Ohmmeter Auto Single direction test 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram. NOTE: When the diagram is displayed a test cannot be performed.

  • Page 47: Manual Bi-Direction Test

    10. To restart the test, re-connect to a new test piece and the test will start automatically. Manual bi-direction test 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.
  • Page 48 NOTE: The full title text of the sub-mode will appear in the secondary field for a few seconds. 5. If there is a continuity reading detected for C and P connections the secondary fields will display with a tick and background will be green. www.megger.com...
  • Page 49 (C1-C2) and potential (P1-P2) circuits. 10. The result can be saved by pressing the SAVE button. A message will inform you the data was saved and which asset ID it was saved to. 11. To restart the test, press the TEST button again. www.megger.com...

  • Page 50: Auto Bi Direction Test

    DLRO Digital Low Resistance Ohmmeter Auto Bi direction test 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram. NOTE: When the diagram is displayed a test cannot be performed.
  • Page 51 10. The result can be saved by pressing the SAVE button. A message will inform you the data was saved and which asset ID it was saved to. 11. To restart the test, re-connect to a new test piece and the test will start automatically. www.megger.com...

  • Page 52: Test Failure

    DLRO Digital Low Resistance Ohmmeter Test failure 7.5.1 Lost connection Should the connection be lost during the test the MTR105 will notify the user. The user can re-make the connection then restart the test after a few seconds by pressing the test button or by reconnecting to a test piece.

  • Page 53: Direction Of Motor Rotation

    Direction of Motor Rotation 8. Direction of Motor Rotation 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram. „ Connect L1 to phase 1 „ Connect L2 to phase 2 „...

  • Page 54: Inductance (L); Capacitance (C); Resistance (R) (Lcr)

    NOTE: Results of measurements can be adversely affected by impedances of additional operating circuits connected in parallel or by transient current. Auto 1. Connect the test leads to the MTR105. 1.1. Press the Information ( ) button to view the lead set up diagram.

  • Page 55: Capacitance Or Inductance

    Inductance (L); Capacitance (C); Resistance (R) (LCR) 5. Press soft keys 1 to toggle between 120 Hz and 1000 Hz. 6. To start the test press the TEST button. The MTR105 determines if the load is inductive, capacitive or resistive automatically. 7. During the tests, The primary field displays the result for the reactive ƒ...
  • Page 56 NOTE: The full title text of the sub-mode will appear in the secondary field for a few seconds. ) capacitance ) inductance 5. Press soft keys 1 to toggle between 120 Hz and 1000 Hz. www.megger.com...

  • Page 57: Lcr Calibration

    The secondary field displays the frequency. ƒ LCR Calibration NOTE For full MTR105 re-calibration procedure refer to Refer to 18. Calibration, Repair and Warranty on page 84. 1. Inductance calibration can be accessed from any sub-mode within the LCR family by pressing soft key 4.
  • Page 58 12. After calibration the confirmation screen will appear. 13. Press the tick button ( ) or soft key 4 to return to the last LCR test mode. The MTR105 has been successfully recalibrated and is ready for use. The new calibration will be stored. www.megger.com...
  • Page 59 Inductance (L); Capacitance (C); Resistance (R) (LCR) 14. If calibration fails, 2 options appear: Press soft key 1 to go back ƒ ƒ Press the tick button ( ) or soft key 4 to try again www.megger.com...

  • Page 60: Temperature Measurement

    Temperature measurement 10. Temperature measurement Thermocouple connected, type “T” is set as default, the MTR105 can also be configured for “J” and “K” type thermocouples. Before an insulation resistance test can be carried out with temperature compensation enabled a temperature measurement must be carried out to establish the temperature of the unit under test.
  • Page 61 6. The unit starts measuring the temperature as soon as it detects the probe is connected. 7. During the test the primary field displays the measured temperature. NOTE : If the thermocouple is not connected or is damaged the primary field will display “O/C” www.megger.com...

  • Page 62: Manual Temperature Measurement

    8. The result can be saved by pressing the SAVE button. A message will inform you the data was saved and which asset ID it was saved to. 10.2 Manual Temperature measurement 1. Turn rotary switch to select the Thermometer position. 2. Press soft key 4. www.megger.com...
  • Page 63 13. Press soft key 1 to cancel and return to the previous menu at any point. 14. The new temperature will be displayed. The result can be saved by pressing the SAVE button. A message will inform you the data was saved and which asset ID it was saved to. www.megger.com...

  • Page 64: Data Management

    2. Press soft keys 2 and 3 to scroll up and down through the asset list. 3. Press soft key 1 to type in a new asset. The relevant language keyboard screen will appear. www.megger.com...

  • Page 65: Using An Existing Asset Id

    2. Press soft keys 2 and 3 to scroll up and down through the asset list www.megger.com...

  • Page 66: Deleting An Asset

    2. Press soft keys 2 and 3 to scroll up and down through the asset list. www.megger.com...

  • Page 67: Deleting Items From Within An Asset

    The primary field shows list of Assets stored on the MTR The secondary field shows the amount of entries, the total storage available are shown in the left hand field and the number of entries under the selected asset are shown in the right hand field. www.megger.com...
  • Page 68 4. Press soft keys 2 and 3 to scroll up and down through the list. 5. Press soft key 4 to delete chosen date and all its entries. 6. Press soft key 4 to confirm Soft key 1 to cancel. www.megger.com...

  • Page 69: Deleting A Single Test

    2. Press soft keys 2 and 3 to scroll up and down through the asset list. 3. Press the tick button ( ) to open the chosen asset and all its entries. www.megger.com...
  • Page 70 The date opens out into colour - coded text (these are the same colours in use on the MTR105 rotary switch). A number, in parenthesis, to the right hand side of the text line shows the number of results of that type of test saved to that asset, on that date.

  • Page 71: Exporting Entries To Usb

    2. Connect a USB Memory stick to the MTR. A USB type A socket is provided on the top of the MTR105 for transferring test results. The position is clearly marked with a USB symbol, the slider must be in the backward position.
  • Page 72 5. Press soft key 2 to upload the single selected measurement Press soft key 3 to upload all saved measurements Press soft key 1 to cancel. 6. If matching names already exist in the storage device the user is asked if the MTR105 should overwrite them. www.megger.com...
  • Page 73 7. As the data is uploading, a message appears and blocks navigation in the secondary field. No other work can be carried out while uploading is in progress. 8. When the export is successful the MTR105 will notify the user. www.megger.com...

  • Page 74: Firmware Update

    Firmware update 12. Firmware update Connect a USB flash drive to the MTR105 with the firmware update file in the root directory. The MTR105 will automatically update when the instrument is turned on if a firmware update is available. 1. Plug the USB pen drive in to the USB slot at the top of the instrument.
  • Page 75 Firmware update 7. The firmware update screen will display while the update in progress. 8. The instrument will reboot after the update is complete. www.megger.com...

  • Page 76: Error And Warning Conditions

    If the error code number is 1000 or higher the instruction on screen will suggest rebooting the instrument and if the problem persists, contact Megger. For Megger contact details Refer to 18. Calibration, Repair and Warranty on page 84. www.megger.com...

  • Page 77: Settings

    2.1. This will enter a sub menu if more than two options are available. 14.1.1 DAR Settings There are two options available for DAR. Press the tick button ( ) to toggle between 15 seconds and 30 seconds. www.megger.com...

  • Page 78: Insulation Threshold

    1. Select Terminal lockout press the tick button ( 2. Press soft key 2 and 3 to scroll through the options. 3. Press soft key 4 to accept the selected setting. 4. Press soft key 1 to cancel and return to the previous menu. www.megger.com...

  • Page 79: Timed Insulation

    1. Select Battery technology press the tick button ( 2. Press soft key 2 and 3 to scroll through the options. 3. Press soft key 4 to accept the selected setting. 4. Press soft key 1 to cancel and return to the previous menu. www.megger.com...

  • Page 80: Date

    1. Select Sleep timer press the tick button ( 2. Press soft key 2 and 3 to scroll through the options. 3. Press soft key 4 to accept the selected setting. 4. Press soft key 1 to cancel and return to the previous menu. www.megger.com...

  • Page 81: Time

    14.3 Language settings The languages set in the MTR105 are English, French, German and Spanish. From the settings menu screen select the Language sub-menu using soft keys 2 and 3. Select the required language using soft keys 2 and 3, the language changes immediately.

  • Page 82: Maintenance

    The battery condition icon is positioned at the top right hand corner of display. This icon is displayed at all times when the MTR105 is switched on. When running on battery, the icon will indicate state of charge, the icon will be filled in proportion to the state of charge.

  • Page 83: Supply

    When charging NiMH rechargeable battery cells, only use the power supply provided by Megger as an optional extra. Other power supplies will not function with the MTR105. The Megger power supply is designed to preserve the functions and accuracy of the MTR105.

  • Page 84: Battery And Fuse Replacement

    Warning: Remove all test leads before removing either the fuse or battery covers. Caution: Battery cells should not be left in the instrument if remaining unused for an extended period. Description Quantity Screw, Captive Cover, Battery Battery isolation tab Battery Screw, Captive Cover, Fuses Fuses www.megger.com...

  • Page 85: Replace Battery Cells And Remove Isolation Tab

    NOTE: When replacing the battery cells, there is an approximate 3 minute window in which the MTR105 will retain the settings for date and time. If left longer these settings will have to be re-made. If using the MTR105 for the first time remove and discard the battery isolation tab (3).

  • Page 86: Specifications

    Operational Uncertainty: IEC61557-1 Frequency range 15 - 400 Hz (0 - 1000 V) Frequency resolution 0.1 Hz Frequency accuracy ±0.5% (±1 digit) Diode test accuracy: ±2% ±2 digits 0.01 V to 3.00 V Display range: 0.00 V to 3.00 V www.megger.com...
  • Page 87 IEC61010 CAT III 600 V Industrial IEC61326 Temperature coefficient <0.1% per °C up to 1 GΩ Environment Operating temperature range -10 °C to 50 °C (14 °F to 122 °F) Storage temperature range -25 °C to 50 °C (-13 °F to 122 °F) www.megger.com...
  • Page 88 Fiducial Value A Operational Uncertainty 0.1 Ω to 2 Ω 0.1 Ω 23 % 23 % Key to table: A: Intrinsic uncertainty : Reference position ±90º : Supply Voltage : Temperature 0 ºC to 30 ºC IEC61557 -1, 61557-2 and 61557-4 www.megger.com...

  • Page 89: Accessories And Equipment

    Test probe set, long reach CAT IV 1012-066 Kelvin probe leadset 1011-929 Kelvin probe pins (pack of 4) 1012-064 Kelvin clip leadset 1011-928 Temperature probe, T type CAT III 600 1012-067 Test probe set, long reach, CAT II 1012-065 www.megger.com...

  • Page 90: Calibration, Repair And Warranty

    3. Pack the instrument carefully to prevent damage in transit. 4. Before the instrument is sent to Megger, freight paid, make sure that the returns label is attached or that the RA number is clearly marked on the outside of the package and on any correspondence. Copies of the original purchase invoice and packing note should be sent simultaneously by airmail to expedite clearance through customs.

  • Page 91: Decommissioning

    19.1 WEEE Directive The crossed out wheeled bin symbol placed on Megger products is a reminder not to dispose of the product at the end of its life with general waste. Megger is registered in the UK as a Producer of Electrical and Electronic Equipment. The Registration No is WEE/ HE0146QT.
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  • Page 100 Kent CT17 9EN ENGLAND +44 (0)1 304 502101 +44 (0)1 304 207342 Manufacturing sites Megger Limited Megger GmbH Megger USA - Valley Forge Archcliffe Road Obere Zeil 2 61440 Valley Forge Corporate Center Dover Oberursel, 2621 Van Buren Avenue Kent...

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