METREL GammaGT MI 3311 Instruction Manual
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METREL GammaGT MI 3311 Instruction Manual

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GammaGT
MI 3311
Instruction manual
Ver. 1.8, Code no. 20 751 625

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Summary of Contents for METREL GammaGT MI 3311

  • Page 1 GammaGT MI 3311 Instruction manual Ver. 1.8, Code no. 20 751 625...
  • Page 2 Mark on your equipment certifies that this equipment meets the requirements of the EU (European Union) concerning safety and electromagnetic compatibility regulations No part of this publication may be reproduced or utilized in any form or by any means without permission in writing from METREL.

  • Page 3: Table Of Contents

    MI 3311 GammaGT Table of contents Table of contents General description....................5 Warnings .......................6 Battery and charging .....................7 New battery cells or cells unused for a longer period ..........8 Standards applied....................9 Instrument description ..................10 Front panel ......................10 Connector panel ....................11 Back side ......................12 Meaning of symbols and messages on the instrument display......13 2.4.1 Battery indication..................14...
  • Page 4 MI 3311 GammaGT Table of contents 5.2.6 Substitute leakage - P ..................34 5.2.7 Polarity test....................36 5.2.8 Functional test ....................37 5.2.9 Voltage TRMS ....................38 Autotest sequences ....................39 VDE organizer setup menu .................39 6.1.1 Carrying out a test sequence set with VDE Organizer .........40 Custom autotest ....................44 Simple test......................44 Code Autotest......................45...

  • Page 5: General Description

    (USB and RS232C) for communication with PC, barcode reader, printer and RFID reader/writer;  built in real time clock;  fully compatible with new METREL PAT Link PRO PC software package;  In built calibration unit. Powerful functions for fast and efficient periodic testing are included: ...

  • Page 6: Warnings

    MI 3311 GammaGT General description 1.1 Warnings In order to reach a high level of operator safety while carrying out various measurements using the instrument, as well as to keep the test equipment undamaged, it is necessary to consider the following general warnings: ...

  • Page 7: Battery And Charging

    If the instrument is not to be used for a long period of time, remove all batteries from the battery compartment.  Alkaline or rechargeable Ni-Cd or Ni-MH batteries (size AA) can be used. Metrel recommends only using rechargeable batteries with a capacity of 2100mAh or higher.

  • Page 8: New Battery Cells Or Cells Unused For A Longer Period

    Cd cells can be subjected to these chemical effects (sometimes called the memory effect). As a result the instrument operation time can be significantly reduced during the initial charging/discharging cycles of the batteries. In this situation, Metrel recommend the following procedure to improve the battery lifetime: Procedure Notes ...

  • Page 9: Standards Applied

    MI 3311 GammaGT General description 1.4 Standards applied The GammaGT is manufactured and tested in accordance with the following regulations: Electromagnetic compatibility (EMC) EN 61326 Electrical equipment for measurement, control and laboratory use – EMC requirements Class (Hand-held equipment used controlled environments) Safety (LVD)

  • Page 10: Instrument Description

    MI 3311 GammaGT Instrument description 2 Instrument description 2.1 Front panel Figure 2.1: Front panel Legend: 128 x 64 dots matrix display with backlight. FAIL Red indicator Indicates PASS/ FAIL of result. PASS Green indicator TEST Starts testing / confirms selected option Selects parameter / changes value of selected parameter.

  • Page 11: Connector Panel

    MI 3311 GammaGT Instrument description 2.2 Connector panel Figure 2.2: Connector panel Legend: 1 S/EB1 Probe and Earth continuity terminal 2 IEC IEC / Voltage input 3 Protection cover 4 Charger socket For connection of external charger 5 USB connector Communication with PC USB (1.1) port Communication with barcode reader Communication with printer...

  • Page 12: Back Side

    MI 3311 GammaGT Instrument description 2.3 Back side Figure 2.3: Back side Legend: Inserts for side belt Battery compartment cover Fixing screw for battery compartment cover Back side information label Holder for inclined position of the instrument Figure 2.4: Battery compartment Legend: Battery cells Size AA, alkaline or rechargeable NiMH / NiCd...

  • Page 13: Meaning Of Symbols And Messages On The Instrument Display

    MI 3311 GammaGT Instrument description 2.4 Meaning of symbols and messages on the instrument display Before performing a measurement, the instrument performs a series of pre-tests to ensure safety and to prevent any damage. These safety pre-tests are checking for any external voltage and load condition on test terminals.

  • Page 14: Battery Indication

    MI 3311 GammaGT Instrument description WARNING! A high insulation test voltage will be present on the output of the instrument! WARNING! A high insulation test voltage is present on the output of the instrument. Measurement in progress. Test result can be saved. Connect the test lead to the S/EB1 test socket.

  • Page 15: Technical Specifications

    MI 3311 GammaGT Technical specifications 3 Technical specifications 3.1 Earth continuity Range Resolution Accuracy 0.00   19.99  0.01  (5 % of reading + 3 digits) 20.0   199.9  0.1  Indication only 200   1999  1 ...

  • Page 16: Substitute Leakage Current

    MI 3311 GammaGT Technical specifications 3.3 Substitute leakage current Range Resolution Accuracy 0.00 mA  9.99 mA 0.01 mA (5 % of reading + 3 digits) 10.0 mA  20.0 mA 0.1 mA Open circuit voltage ....<50 V AC at rated mains voltage Short circuit current....

  • Page 17: Checkbox Specification

    MI 3311 GammaGT Technical specifications 3.6 Checkbox specification Instrument Function Reference value Accuracy Earth continuity 0.50  +/- 1 % of value 2.00  Earth continuity +/- 1 % of value Substitute leakage current 5.90 mA +/- 1 % of value Substitute leakage current 0.50 mA +/- 1 % of value...
  • Page 18 MI 3311 GammaGT Technical specifications Memory..........1500 memory locations The error in operating conditions could be at most the error for reference conditions (specified in the manual for each function) +1 % of measured value + 1 digit, unless otherwise specified in the manual for particular function. Communication transfer speed RS232 interface ........

  • Page 19: Main Menu And Test Modes

    MI 3311 GammaGT Main menu and test modes 4 Main menu and test modes 4.1 Instrument Main menu From the Main menu of the instrument there are five instrument operation modes, Help and Setup that can be selected: Figure 4.1: Instrument Main menu Keys: Select one of the following menu items: ...

  • Page 20: Single Test Menu

    MI 3311 GammaGT Main menu and test modes 4.3 Single test menu In single test menu individual tests can be performed. Figure 4.3: Single test Main menu See chapter 5 Single test for more information. 4.4 Custom Autotest menu This menu contains a list of custom prepared autosequences. The commonly used autotest sequences are added to the list by default.

  • Page 21: Help Menu

    MI 3311 GammaGT Main menu and test modes 4.7 Help menu Help menu contain schematic diagrams to illustrate how to correctly connect a device under test to the PAT testing instrument. Figure 4.7: Example of help screens Keys: Selects next / previous help screen. /...

  • Page 22: Language Selection

    MI 3311 GammaGT Main menu and test modes 4.8.2 Language selection The instrument language can be set in this menu. Figure 4.10: Language menu Keys:  /  Selects the language. Confirms selection and returns to Setup menu. TEST Returns to Setup menu without changes. 4.8.3 LCD contrast and backlight In this menu the contrast and backlight mode of the LCD can be set.
  • Page 23 MI 3311 GammaGT Main menu and test modes Note:  The Checkbox feature should be used to ensure that the meter is reading correctly between calibrations but should not be regarded as a substitute for a full manufacturers calibration on the unit. The Checkbox starting screen is displayed first.
  • Page 24 MI 3311 GammaGT Main menu and test modes Keys: Starts test lead checking procedure. TEST Skips further tests. Checking the IEC test cord The connection for checking the IEC test cord is displayed. Before conducting the check, connect the IEC test cord. Figure 4.15: IEC test cord check starting screen Keys: Starts IEC test cord checking procedure.

  • Page 25: Test Speed Setup

    MI 3311 GammaGT Main menu and test modes 4.8.5 Test speed setup In this menu the instrument test speed can be set: Figure 4.17: Test speed menu Options: STANDARD Tests with pauses. No pauses during tests (default). FAST Keys:  /  Selects the list.

  • Page 26: User Data

    MI 3311 GammaGT Main menu and test modes 4.8.7 User data User data can be set in this menu. Figure 4.19: User data menu Keys:  /  Selects the user name. Confirms selection and returns to Setup menu. TEST Returns to Setup menu without changes.

  • Page 27: Instrument Data

    MI 3311 GammaGT Main menu and test modes 4.8.8 Instrument data In this menu the following instrument data is shown:  producer name;  instrument type;  model number;  calibration date;  serial number;  firmware and hardware version. Figure 4.21: Instrument data menu Keys: ...

  • Page 28: Single Test

    MI 3311 GammaGT Single test 5 Single test In a Single test mode individual tests can be performed. This is especially helpful for troubleshooting. 5.1 Performing measurements in single test mode Select appropriate Single test in Single test Main menu. Figure 5.1: Single test Main menu Keys: ...

  • Page 29: Measurements And Inspections

    MI 3311 GammaGT Single test 5.2 Measurements and inspections 5.2.1 Visual inspection A thorough visual check must be carried out before each electrical safety test. The following items should be checked:  Inspection of device under test for sign of damage. ...

  • Page 30: Earth Continuity Resistance

    MI 3311 GammaGT Single test 5.2.2 Earth continuity resistance This test ensures that the connections between the protective conductor terminal in the mains plug of the device under test and earthed accessible conductive parts of the device under test are satisfactory and of sufficiently low resistance. This test has to be performed on Class I (earthed) appliances.

  • Page 31: Insulation Resistance

    MI 3311 GammaGT Single test 5.2.3 Insulation resistance The insulation resistance test checks the resistance between live conductors and earthed (or isolated) accessible metal parts of a device under test. This test can disclose faults caused by pollution, moisture, deterioration of the insulation material etc. The instrument measures the insulation resistance between: ...

  • Page 32: Insulation Resistance - P

    MI 3311 GammaGT Single test Notes:  When S/EB1 probe is connected during the test then the current through it is also considered.  Consider any warning on the display before starting the measurement!  Do not touch or disconnect the device under test during the measurement or before it is fully discharged! The message »Udisch …«...

  • Page 33: Substitute Leakage

    MI 3311 GammaGT Single test Figure 5.12: Example of insulation resistance - P measurement results Displayed results: Main result ..... Insulation resistance (LN – P) Notes:  The currents flowing through the PE terminal of the mains test socket will NOT be considered.

  • Page 34: Substitute Leakage - P

    MI 3311 GammaGT Single test Substitute leakage measurement procedure  Select the SUB. LEAKAGE function.  Set the test parameters.  Connect device under test to the instrument (see figure 5.14).  Press the TEST key for measurement.  Store the result by pressing MEM key (optional). Figure 5.15: Example of substitute leakage current measurement results Displayed results: Main result .....
  • Page 35 MI 3311 GammaGT Single test Test circuits for substitute leakage - P measurement Figure 5.17: Measurement of Substitute leakage - P current Substitute leakage - P measurement procedure  Select the SUB. LEAKAGE-P function.  Set the test parameters.  Connect device under test to the instrument (see figure 5.17).

  • Page 36: Polarity Test

    MI 3311 GammaGT Single test 5.2.7 Polarity test This test checks the polarity of supply cords. The following faults can be detected: L OPEN, N OPEN, PE OPEN, L-N CROSS and MULTIPLE FAULT. Figure 5.19: Polarity test menu Test circuit for polarity test Figure 5.20: Polarity test of IEC cord Polarity test procedure ...

  • Page 37: Functional Test

    MI 3311 GammaGT Single test 5.2.8 Functional test In its simplest form a functional test is a check to ensure that the appliance is working properly. Note:  This test should only be performed once the appliance has passed all other tests applicable to the device under test.

  • Page 38: Voltage Trms

    MI 3311 GammaGT Single test 5.2.9 Voltage TRMS It is a simple function that continuously measures the voltage across the IEC cord connector. Test circuit for voltage measurement Figure 5.23: IEC cord voltage measurement Voltage TRMS procedure  Select the VOLTAGE TRMS function. ...

  • Page 39: Autotest Sequences

    MI 3311 GammaGT Autotest sequences 6 Autotest sequences Autotest is the fastest and easiest way to test appliances. During the autotest pre- programmed measurements run automatically in a sequential order. The complete autotest results can be stored together with the associated appliance ID and appliance NAME.

  • Page 40: Carrying Out A Test Sequence Set With Vde Organizer

    MI 3311 GammaGT Autotest sequences 6.1.1 Carrying out a test sequence set with VDE Organizer General meaning of keys during a VDE Organizer autotest sequence: /  Sets Organizer option or set value in selected (highlighted) item. Cancels VDE sequence and returns to Main menu. Starts / repeats selected measurement or proceeds to next step.
  • Page 41 MI 3311 GammaGT Autotest sequences Insulation resistance measurement This test is offered if it is applicable according to the VDE Organizer setting. The measurement is described in chapter 5.2.3 Insulation resistance. Figure 6.5: VDE Organizer – Insulation resistance starting screen Options in insulation resistance starting screen: Standard test voltage 500 V...
  • Page 42 MI 3311 GammaGT Autotest sequences Insulation resistance - P measurement This test is offered if it is applicable according to the VDE Organizer setting. The measurement is described in chapter 5.2.4 Insulation resistance - P. Figure 6.9: VDE Organizer autotest – Insulation resistance - P starting screen Options in Insulation resistance - P starting screen: Standard test voltage 500 V...
  • Page 43 MI 3311 GammaGT Autotest sequences Functional test Figure 6.13: VDE Organizer – Functional result screens Options in Functional test result screen: To be applied manually. PASS / FAIL Option if IEC leads, multiple outlets without electronic parts is set: Starts Polarity test. POLARITY...

  • Page 44: Custom Autotest

    MI 3311 GammaGT Autotest sequences 6.2 Custom autotest In the autotest custom menu user-defined autotest procedures can be performed via the PC SW PAT Link PRO. Up to 50 custom autotest sequences can be pre-programmed in this autotest mode. Commonly used pre-programmed autotest sequences are added to the list by default. The custom sequences can be also uploaded from the PC software PAT Link PRO.

  • Page 45: Code Autotest

    MI 3311 GammaGT Autotest sequences 6.4 Code Autotest Code Autotest menu supports operation with pre-defined test codes, barcodes and RFID tags. The instrument supports the following functions:  manual selection of pre-defined autotest shortcut codes;  reading pre-defined autotest shortcut codes from barcode labels; ...

  • Page 46: Carrying Out (Code, Simple And Custom) Autotest Sequences

    MI 3311 GammaGT Autotest sequences Reading appliance ID number with barcode reader or RFID reader/writer When the instrument is in the Save results menu, appliance ID can be scanned from a barcode label with the barcode reader or can be read from RFID tag with the RFID reader/writer.

  • Page 47: Insulation Resistance Measurement

    MI 3311 GammaGT Autotest sequences Figure 6.20: Earth continuity result screen Options in Earth continuity result screen: Proceeds to next step. NEXT Repeat the test (use in case of multiple earthed points). Highest result will REPEAT be stored. 6.5.3 Insulation resistance measurement The test is offered if it is applicable according to the autotest setting.

  • Page 48: Insulation Resistance - P Measurement

    MI 3311 GammaGT Autotest sequences 6.5.5 Insulation resistance - P measurement The test is offered if it is applicable according to the autotest setting. The Insulation resistance - P starting screen is displayed first. Measurement and options in Insulation resistance - P starting screen are described in chapter 5.2.4 Insulation resistance - P. Figure 6.25: Insulation resistance - P starting screen After the measurement is carried out the Insulation resistance - P result screen is displayed.

  • Page 49: Polarity Test

    MI 3311 GammaGT Autotest sequences 6.5.7 Polarity test The test is offered if it is applicable according to the autotest setting. The Polarity test starting screen is displayed first. Measurement and options in Polarity test starting screen are described in chapter 5.2.7 Polarity test. Figure 6.29: Polarity test starting screen After the measurement is carried out the Polarity test result screen is displayed.

  • Page 50: Handling Autotest Results

    MI 3311 GammaGT Autotest sequences 6.6 Handling autotest results After the Code, Simple or Custom autotest is finished, the Main autotest result screen will be displayed including an overall  /  indication. Figure 6.32: Main autotest result screen Options in Autotest results screen: Views individual results.

  • Page 51: Working With Autotest Results

    MI 3311 GammaGT Working with autotest results 7 Working with autotest results 7.1 Saving autotest results After selecting Save results in Autotest results menu, the autotest results will be stored in the internal memory of the instrument. The appliance ID number and NAME can be added to the test results before the results are saved: Figure 7.1: Save results menu (Appliance ID) Keys:...

  • Page 52: Recalling Results

    MI 3311 GammaGT Working with autotest results 7.2 Recalling results Saved autotest results can be recalled, printed or deleted from the Memory menu. Enter the Memory menu from the Setup menu. Figure 7.4: Memory menu To enter the Recall results menu select Recall results in Memory menu. A list of Appliance ID’s and NAMES are displayed in a chronological order (last performed measurement is displayed at the top of the list).

  • Page 53: Deleting Individual Autotest Results

    MI 3311 GammaGT Working with autotest results 7.3 Deleting individual autotest results To enter the Delete results menu select Delete results in Memory menu. A list of Appliance ID’s and NAMES are displayed in a chronological order (last performed measurement will be displayed at the top of the list). In the lower window of the display the following data is displayed: ...

  • Page 54: Printing And Rfid Tagging Of Individual Autotest Results

    MI 3311 GammaGT Communication 7.5 Printing and RFID tagging of individual autotest results To print labels or results and write RFID tags select Print data / RFID in Memory menu. A list of Appliance ID’s and NAMES are displayed in a chronological order (last performed measurement will be displayed at the top of the list).

  • Page 55: Communication

    MI 3311 GammaGT Communication 8 Communication The instrument can communicate with the PAT Link PRO PC software. The following actions are supported:  Saved results can be downloaded and stored to a PC.  Checkbox results can be downloaded and stored to the PC. ...

  • Page 56: Maintenance

    MI 3311 GammaGT Maintenance 9 Maintenance 9.1 Periodic calibration It is essential that all measuring instruments are regularly calibrated in order for the technical specification listed in this manual to be guaranteed. We recommend an annual calibration. The calibration should be done by an authorized technical person only. 9.2 Service For repairs under or out of warranty please contact your distributor for further information.

  • Page 57: Instrument Set And Accessories

    MI 3311 GammaGT Instrument set and accessories 10 Instrument set and accessories Standard set of the instrument  Instrument GammaGT  Small soft carrying bag  Test probe (black)  Crocodile clip (black)  Test lead (1.5 m, black)  IEC cord 2 m ...

  • Page 58: Appendix A - Barcode Formats

    MI 3311 GammaGT Appendix A – Barcode formats Appendix A – Barcode formats The instrument GammaGT supports two barcode formats (single and double). Autotest code and appliance ID Autotest codes are represented as a three digit code. These autotest codes can also be represented by the barcode.

  • Page 59: Appendix B - Pre-Programmed Autotests (Ger)

    MI 3311 GammaGT Appendix B – Pre-programmed autotests (GER) Appendix B – Pre-programmed autotests (GER) Pre-programmed autotest sequences table Autotest shortcut code Kl_1_Iso Kl_1_Iso_BLT Kl_1_Ia Kl_1_Ia_BLT     Visual test Output 200 mA 200 mA 200 mA 200 mA Earth 0.30 ...
  • Page 60 MI 3311 GammaGT Appendix B – Pre-programmed autotests (GER) Pre-programmed autotest sequences table (cont’d) Autotest shortcut code Kl_2_Iso Kl_2_Ibs Kl_1_IsoIa Kl_1_IsoIaBLT     Visual test   Output 200 mA 200 mA Earth 0.30  0.30   ...
  • Page 61 MI 3311 GammaGT Appendix B – Pre-programmed autotests (GER) Pre-programmed autotest sequences table (cont’d) Autotest shortcut code Kl_2_IsoIbs Kl_2 Kl_3_Iso Kl_3     Visual test Output     Earth Limit     continuity Time ...
  • Page 62 MI 3311 GammaGT Appendix B – Pre-programmed autotests (GER) METREL GmbH VDE tester test type card Code Autotest sequence name and descriptions Limits Barcode Testing according to VDE. Earth bond: 0.30  Class 1 device. Insulation resistance substitute Insulation: 1.00 M...
  • Page 63 MI 3311 GammaGT Appendix B – Pre-programmed autotests (GER) METREL GmbH VDE tester test type card (cont'd) Testing according to VDE. Class 2 device without any isolated Kl_2 accessible conductive parts. A1 0 Testing according to VDE. Insulation - P: 0.25 M...

  • Page 64: Appendix C - Pre-Programmed Autotests (Nl)

    MI 3311 GammaGT Appendix C – Pre-programmed autotests (NL) Appendix C – Pre-programmed autotests (NL) Pre-programmed autotest sequences table Autotest shortcut code Kl_1_ALG Kl_2_ALG Kl_1_HEATERS KL_1_PC     Visual test Output 200 mA  200 mA 200 mA Earth 0.30 ...
  • Page 65 MI 3311 GammaGT Appendix C – Pre-programmed autotests (NL) Pre-programmed autotest sequences table (cont’d) Autotest shortcut code Kl_3_ALG Kl_1_AGMD KABEL_5M_2.5MM KABEL_15M_2.5MM     Visual test Output  200 mA 200 mA 200 mA Earth 0.30  0.30  0.50 ...
  • Page 66 MI 3311 GammaGT Appendix C – Pre-programmed autotests (NL) Pre-programmed autotest sequences table (cont’d) Autotest shortcut code KABEL_25M_2.5 KABEL_50M_2.5MM   Visual test Output 200 mA 200 mA Earth 0.70  1.00  Limit continuity Time Output 500 V 500 V Limit 1.00 M...

  • Page 67: Appendix D - Simple Test Codes

    MI 3311 GammaGT Appendix D – Simple test codes Appendix D – Simple test codes Simple test codes CLASS. I CLASS. II CLASS. III    Visual test   Output 200 mA 0.30    Limit Earth continuity ...
  • Page 68 MI 3311 GammaGT Appendix D – Simple test codes...

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