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MI 3309 DeltaGT 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 ......................11 Meaning of symbols and messages on the instrument display......13 2.4.1 Battery indication..................15...
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MI 3309 DeltaGT Table of contents 5.2.8 Differential leakage..................39 5.2.9 Touch leakage....................41 5.2.10 (P)RCD test ....................43 5.2.11 Power test ....................46 5.2.12 Voltage TRMS ....................48 5.2.13 Functional test ....................49 Autotest sequences ....................50 VDE organizer setup menu .................50 6.1.1 Carrying out a test sequence set with VDE Organizer .........51 Custom autotest ....................57 Simple test......................57 Code Autotest......................58...
additional connectors for fixed appliances testing; built-in real time clock; fully compatible with new METREL PATLink PRO PC software package; Powerful functions for fast and efficient periodic testing are included: pre-programmed test sequences; fast testing with the help of barcodes and RFID tags;...
MI 3309 DeltaGT 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: ...
If the instrument is not to be used for a long period of time, remove all batteries from the battery compartment. Rechargeable NiCd or NiMH batteries type HR 6 (size AA) can be used. Metrel recommends only using rechargeable batteries with a capacity of 2100mAh or higher.
(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 ...
MI 3309 DeltaGT General description 1.4 Standards applied The DeltaGT 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)
MI 3309 DeltaGT 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.
MI 3309 DeltaGT Instrument description 2.2 Connector panel Figure 2.2: Connector panel Legend: 1 S/EB Probe and Earth continuity terminal 2 IEC IEC test terminal 3 LN LN terminal (for connection of fixed installed appliances) 4 PE PE terminal (for connection of fixed installed appliances) Fuses: 2 x T16 A / 250 V;...
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MI 3309 DeltaGT Instrument description 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 Type HR 6 (size AA), rechargeable NiMH / NiCd Serial number label...
MI 3309 DeltaGT 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.
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MI 3309 DeltaGT Instrument description WARNING! A high resistance between L and N was measured in the fuse pre-test. This indication means that the device under test has very low power consumption or it is: not connected; switched off; ...
MI 3309 DeltaGT Instrument description The instrument detects a serious failure. Switch OFF the instrument. Disconnect all cables and leads. Switch ON the instrument again. Return the instrument to the repair centre if the message is displayed again. WARNING! A high voltage will be present on the output of the instrument! WARNING! A high insulation test voltage is present on the output of...
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MI 3309 DeltaGT Instrument description Battery capacity indication. Low battery. Battery is too weak to guarantee correct result. Replace or recharge the battery cells. Instrument is connected to the mains (and is charging)
MI 3309 DeltaGT Technical specifications 3.3 Substitute leakage current, Substitute leakage – P 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 Powered by....... battery or mains Open circuit voltage ....
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MI 3309 DeltaGT Technical specifications 3.5 Differential leakage current Range Resolution Accuracy 0.00 mA 19.99 mA (5 % of reading + 5 digits) 0.01 mA Apparent power Indication only Powered by....... mains Pass levels:....... 0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA, 2.00 mA, 2.25 mA, 2.50 mA, 3.50 mA, 4.00 mA, 4.50 mA, 5.00 mA, 5.50 mA, 6.00 mA, 7.00 mA, 8.00 mA, 9.00 mA, 10.00 mA, 15.00 mA, ---- Test duration:....
MI 3309 DeltaGT Technical specifications 3.10 General data Power supply voltage......9 V (61.2 V NiMH or NiCd battery, type HR 6) (size AA) Operation .......... typical 8 h Battery charging current....250 mA (internally regulated) Overvoltage category......CAT II / 300 V Protection classification ....
MI 3309 DeltaGT 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 menu and Setup menu can be selected: Figure 4.1: Instrument Main menu Keys: ...
MI 3309 DeltaGT Main menu and test modes 4.3 Single test menu In single test menu individual tests can be performed. Figure 4.3: Single test 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.
MI 3309 DeltaGT Main menu and test modes 4.7 Help menu Help menu contains 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. Returns to Main menu.
MI 3309 DeltaGT Main menu and test modes Figure 4.9: Memory menu See chapter 7 Working with autotest results for more information. 4.8.2 Language selection The instrument language can be set in this menu. Figure 4.10: Language menu Keys: / Selects the language.
MI 3309 DeltaGT Main menu and test modes While the instrument is connected to mains voltage the backlight is automatically switched to the HIGH level. 4.8.4 Test speed setup In this menu the instrument test speed can be set: Figure 4.12: Test speed menu Options: STANDARD Default option.
MI 3309 DeltaGT Main menu and test modes 4.8.6 User data User data can be set in this menu. Figure 4.14: User data menu Keys: / Selects the user name. Confirms selection and returns to Setup menu. TEST Returns to Setup menu without changes.
MI 3309 DeltaGT Main menu and test modes Keys: Switches between Instrument data screens. / TEST, Returns to Setup menu. 4.8.8 Initial settings In this menu the following instrument parameters can be set to their initial values: all measurement parameters in single test mode; ...
MI 3309 DeltaGT 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 test in Single test menu. Figure 5.1: Single test menu Keys: ...
MI 3309 DeltaGT Single test Any signs of pollution, moisture, dirt that can jeopardize safety. Especially openings, air filters, protection covers and barriers must be checked! Are there signs of corrosion? Are there signs of overheating? Inscriptions and markings related to safety must be clearly readable.
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MI 3309 DeltaGT Single test Typical test circuits for Earth continuity resistance measurement Figure 5.5: Measurement of Earth continuity Figure 5.6: Measurement of Earth continuity of fixed installed DUTs of Class I Earth continuity resistance measurement procedure Select the EARTH CONT. function. ...
MI 3309 DeltaGT Single test Main result ..... Earth continuity resistance Note: Consider displayed warnings before starting measurement! 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.
MI 3309 DeltaGT Single test Figure 5.10: Measurement of insulation resistance of fixed installed DUTs of Class I Insulation resistance measurement procedure Select the INSULATION function. Set the test parameters. Connect device under test to the instrument (see Figure 5.9 and Figure 5.10). ...
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MI 3309 DeltaGT Single test This function is primarily intended for testing Class II appliances and Class II parts of Class I appliances. Figure 5.12: Insulation resistance - P menu Test parameters for Insulation resistance - P measurement OUTPUT Test voltage [250 V, 500 V] LIMIT Minimum resistance [0.01 M, 0.10 M, 0,25M, 0.30 M, 0.50 M, 1 M, 2 M, 4 M, 7 M, 10 M, --- M]...
MI 3309 DeltaGT Single test Insulation resistance - P measurement procedure Select the INSULATION-P function. Set the test parameters. Connect device under test to the instrument (see Figures 5.13 and Figures 5.14). Press the TEST key for measurement. To stop continuous measurement press TEST key once again.
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MI 3309 DeltaGT Single test Test circuits for Substitute leakage current measurement Figure 5.17: Measurement of Substitute leakage current Figure 5.18: Measurement of substitute leakage current of fixed installed DUTs Substitute leakage measurement procedure Select the SUB. LEAKAGE function. ...
MI 3309 DeltaGT Single test Consider any displayed warning before starting measurement! When S/EB probe is connected during the test then the current through it is also considered. Substitute leakage result may differ from the leakage current test result. For example, if EM filter capacitors are connected to the phase and neutral conductors, the substitute leakage result can be 2 times higher than the differential leakage result.
MI 3309 DeltaGT Single test Figure 5.21: Measurement of Substitute leakage - P current Figure 5.22: Measurement of substitute leakage of accessible isolated conductive parts of fixed installed DUTs Substitute leakage - P measurement procedure Select the SUB. LEAKAGE-P function. ...
MI 3309 DeltaGT Single test Figure 5.24: Polarity test menu Test circuit for polarity test Figure 5.25: Polarity test of IEC cord Polarity test procedure Select the POLARITY function. Connect the IEC cord to the instrument as shown on Figure 5.25. ...
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MI 3309 DeltaGT Single test Figure 5.27: Differential leakage current menu Test parameters for differential leakage current measurement OUTPUT Test voltage [MAINS voltage] LIMIT Maximum current [0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA, 2.00 mA, 2.25 mA, 2.50 mA, 3.50 mA, 4.00 mA, 4.50 mA, 5.00 mA, 5.50 mA, 6.00 mA, 7.00 mA, 8.00 mA, 9.00 mA, 10.0 mA, 15.0 mA, --- mA] TIME Measuring time [2s, 3s, 5 s, 10 s, 30 s, 60 s, 120 s, --- s (continuous...
MI 3309 DeltaGT Single test Figure 5.29: Examples of differential current measurement result Displayed results: Main result I ... Differential leakage current Sub-result P....Apparent power Notes: For this test the instrument must be connected to the mains voltage. During the test, mains voltage is connected to the DUT.
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MI 3309 DeltaGT Single test Figure 5.31: Measurement of touch leakage current Figure 5.32: Measurement of touch leakage current on a fixed installed DUT Touch leakage current measurement procedure Select the TOUCH LEAKAGE function. Set the test parameters. ...
MI 3309 DeltaGT Single test Sub-result P....Apparent power Notes: For this test the instrument must be connected to the mains voltage. During the test, mains voltage is connected to the DUT. If DUT contains moving parts, make sure that it is safely mounted or protected to prevent possible danger to the operator or damage to the DUT or surrounding environment! ...
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MI 3309 DeltaGT Single test Test circuits for testing RCD and PRCD a) Testing of standard RCD c) Testing of PRCD via test socket b) Testing of PRCD via mains socket Figure 5.36: Testing of RCD and PRCD 5.2.10.1 (P)RCD single test In single test a fast (P)RCD test with selected test current and with one or both starting polarities is performed.
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MI 3309 DeltaGT Single test Trip-out time measurement procedure Measuring PRCD Select the RCD test function. Select test mode. Set test parameters. Connect tested PRCD / device to an external voltage socket. Connect the IEC cord to the instrument’s MAINS terminal and PRCD (see Figure 5.36b).
MI 3309 DeltaGT Single test (P)RCD autotest function is intended to perform a complete (P)RCD analysis (trip-out times at different residual currents and starting polarity phases) . (P)RCD autotest procedure (P)RCD Autotest steps Notes Select the RCD (PRCD) test function. ...
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MI 3309 DeltaGT Single test Figure 5.38: Power test menu Test parameters for the Power test OUTPUT Test voltage [MAINS voltage] TIME Measuring time [2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, --- s (continuous measurement)] Test circuit for the power test Figure 5.39: Power test...
MI 3309 DeltaGT Single test Notes: For this test the instrument must be connected to the mains voltage. During the test, mains voltage is connected to the DUT. If DUT contains moving parts, make sure that it is safely mounted or protected to prevent possible danger to the operator or damage to the DUT or surrounding environment! ...
MI 3309 DeltaGT Single test Warning: Only for voltage range from 80 V to 300 V! 5.2.13 Functional test Functional test is the simplest way to ensure that the appliance is working properly. Note: This test should only be performed once the DUT has passed all other tests applicable to this type of appliances.
MI 3309 DeltaGT 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.
MI 3309 DeltaGT Autotest sequences 6.1.1 Carrying out a test sequence set with VDE Organizer General meaning of keys during 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.
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MI 3309 DeltaGT Autotest sequences 6.1.1.3 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: To be set if insulation test is not applicable To be set if insulation test is applicable...
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MI 3309 DeltaGT Autotest sequences Note: The leakage current limit is automatically set on base of set appliance power. There are no special options to be set if other Appliance type is set. Figure 6.9: VDE Organizer – Substitute leakage result screen There are no special options to be set in the Substitute leakage result screen.
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MI 3309 DeltaGT Autotest sequences 6.1.1.7 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 6.12: VDE Organizer autotest – Insulation resistance - P starting screen Options in Insulation resistance-P starting screen: To be set if insulation test is not applicable To be set if insulation test is applicable...
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MI 3309 DeltaGT Autotest sequences Figure 6.15: VDE Organizer – Substitute leakage - P starting screen There are no special options in the Substitute leakage - P starting screen. Figure 6.16: VDE Organizer – Substitute leakage - P result screen Options in Substitute leakage - P result screen: Proceeds with the next measurement.
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MI 3309 DeltaGT Autotest sequences Figure 6.19: VDE Organizer –RCD starting screen Options in RCD starting screen: / Sets nominal RCD value Note: The test mode is automatically set to Single test, 1xI , both polarities. ΔN Figure 6.20: VDE Organizer –RCD result screen There are no special options in the RCD result screen.
MI 3309 DeltaGT Autotest sequences 6.2 Custom autotest In the autotest custom menu user-defined autotest procedures can be performed via the PC SW PATLink 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 via PC SW PATLink PRO.
MI 3309 DeltaGT 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; ...
MI 3309 DeltaGT Autotest sequences Reading appliance ID number with barcode scanner 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.
MI 3309 DeltaGT Autotest sequences Figure 6.28: 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.
MI 3309 DeltaGT Autotest sequences 6.5.5 Differential leakage measurement The test is offered if it is applicable according to the autotest setting. The Differential leakage current starting screen is displayed first. Measurement and options in Differential leakage starting screen are described in chapter 5.2.8 Differential leakage. Figure 6.33: Differential leakage starting screen After the measurement is carried out the Differential leakage result screen is displayed.
MI 3309 DeltaGT Autotest sequences 6.5.7 Substitute Leakage - P measurement The test is offered if it is applicable according to the autotest setting. The Substitute leakage - P starting screen is displayed first. Measurement and options in Substitute leakage - P starting screen are described in chapter 5.2.6 Substitute leakage - P. Figure 6.37: Substitute leakage - P starting screen After the measurement is carried out the Substitute leakage - P result screen is displayed.
MI 3309 DeltaGT Autotest sequences 6.5.9 (P)RCD test The test is offered if it is applicable according to the autotest setting. The (P)RCD test starting screen is displayed first. Measurement and options in (P)RCD test starting screen are described in chapter 5.2.10 RCD test.
MI 3309 DeltaGT Autotest sequences 6.5.11 Power test The test is offered if it is applicable according to the autotest setting. The Power starting screen is displayed first. Measurement and options in Power starting screen are described in chapter 5.2.11 Power test. Figure 6.45: Power starting screen After the measurement is carried out the Power result screen is displayed.
MI 3309 DeltaGT 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 / (PASS / FAIL) indication. Figure 6.48: Main autotest result screen Options in Autotest results screen: Views individual results.
MI 3309 DeltaGT 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:...
MI 3309 DeltaGT 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 bottom of the list).
MI 3309 DeltaGT 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 bottom of the list). In the lower window of the display the following data is displayed: ...
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MI 3309 DeltaGT Working with autotest results 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 bottom of the list).
MI 3309 DeltaGT Communication 8 Communication The instrument can communicate with the PATLink PRO PC software. The following actions are supported: Saved results can be downloaded and stored to a PC. Custom Auto sequences can be uploaded to the instrument. There are two communication interfaces available on the instrument: USB or RS232.
We recommend an annual calibration. The calibration has to be done by an authorized technical person only. 9.1 Replacing the fuses The DeltaGT MI 3309 instrument contains two accessible fuses: F1, F2 fuse type: ...
MI 3309 DeltaGT Instrument set and accessories 10 Instrument set and accessories Standard set of the instrument Instrument MI 3309 DeltaGT Test probe, black Crocodile clip, black Test lead, 1.5 m, black 2 x IEC cord, 1.5 m ...
MI 3309 DeltaGT Appendix A - Barcode formats Appendix A – Barcode formats The instrument DeltaGT supports two barcode formats (single and double). Autotest code and appliance ID Autotest codes are represented as a three digits code. These autotest codes can also be represented by the barcode.
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MI 3309 DeltaGT 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...
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MI 3309 DeltaGT 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...
MI 3309 DeltaGT Appendix C – Pre-programmed autotests (NL) Appendix C – Simple test codes (GER) Simple test codes CLASS I CLASS II CLASS III Visual test Output 200 mA 0.30 Limit Earth continuity Time ...
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