Megger MIT2500 Series User Manual
  1. Manuals
  2. Brands
  3. Megger Manuals
  4. Measuring Instruments
  5. MIT2500
  6. User manual

Megger MIT2500 Series User Manual

Insulation and continuity testers
Hide thumbs Also See for MIT2500 Series:
Table of Contents

Advertisement

Quick Links

MIT400/2 and MIT2500 Series
Insulation and continuity testers
User Guide

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MIT2500 Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Megger MIT2500 Series

Summary of Contents for Megger MIT2500 Series

  • Page 1 MIT400/2 and MIT2500 Series Insulation and continuity testers 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: megger.com/company/about-us/eu-dofc www.megger.com...

  • Page 4: Table Of Contents

    (MIT420/2, MIT430/2, MIT485/2, MIT2500) Polarisation Index (PI) and Dielectric 16. Repair and Warranty Absorption Ratio (DAR) Calibration, Service and Spare Parts For 3 terminal instruments (MIT481/2, MIT485/2 only) ESD testing mode (MIT415/2 and MIT400ESD) REN mode MIT400/2 and MIT2500 Series www.megger.com...

  • Page 5: Introduction

    This user guide describes the operation and functions of the MIT400/2 series of insulation and continuity test instruments. These instruments are designed and manufactured by: Megger Ltd Archcliffe Road Dover Kent CT17 9EN England Megger Limited reserves the right to change the specification of these instruments at any time without prior notice. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 6: G 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 making measurements. Only “Megger” approved test leads must be used with this product.

  • Page 7: Weee Directive

    Measurement equipment may be safely connected to circuits at the marked rating or lower. 2.2 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.

  • Page 8: General Description

    SP5 remote switched probe SP5 remote switched probe Download Manager software CD Download Manager software CD IMPORTANT - To extend your warranty to 3 years, please register your instrument at www.megger.com within one month of purchase. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 9: Preparations For Use (All Instruments)

    4. Preparations for use (all instruments) 4.1 Batteries The Megger MIT400/2 series instruments are supplied with batteries fitted. When batteries become exhausted, refer to section 15 for battery replacement. Warning: Do not switch the instrument on or connect test leads with the battery cover removed.

  • Page 10: Instrument Overview

    Buzzer ON/OFF – not warning functions Insulation testing – Measures REN value during insulation test Backlight ON/OFF Capacitance testing – Measures REN value SETUP – Change setup value / After test – during capacitance test SAVE result MIT400/2 and MIT2500 Series www.megger.com...

  • Page 11: Display Contents

    Lock enabled / disabled Test result recall to screen Hazard voltage warning Delete test results Warning - Read user manual Bluetooth enabled ® Lead Null is enabled Battery condition DΩ Difference between two resistance Fuse fail warning measurements MIT400/2 and MIT2500 Series www.megger.com...

  • Page 12: Terminal Overview

    5.3 Terminal Overview 2 terminal connection 2 terminal connection 3 terminal connection + Guard MIT400/2 and MIT2500 Series www.megger.com...

  • Page 13: General Operating Instructions

    Fused test leads are available as an optional accessory for local situations where increased protection is required. Hazardous voltages can exist on the insulation test range all the time the [TEST] button is locked down. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 14: Input Terminals

    For instruments with connection (Figure 3) above, the Red / Black test lead set should be connected to the appropriate sockets on the top of the instrument marked + and –, respectively. (see Figure 3 ). MIT400/2 and MIT2500 Series www.megger.com...
  • Page 15 Comparing continuity of conductors to a ground terminal for difference measurements ■ Testing centre tapped electrical installations. ■ Telecommunications: Testing voltage, continuity and Insulation between A, B and E or Tip Ring and Ground, without having to disconnect ■ test leads. MIT400/2 and MIT2500 Series www.megger.com...
  • Page 16 For example, in VOLTS mode, the voltages on the A-B pair, the A-E pair and the B-E pair can all be measured without having to disconnect the test leads from the A, B and E conductors. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 17: Sp5 Switched Probe (Not Mit400/2)

    1. Connect the SP5 probe to the instrument using the special three-pole +ve socket (this replaces the RED test lead). 2. Select a suitable insulation resistance range. 3. Press and hold down the SP5 probe button. The instrument will start an insulation resistance test. 4. To end the test, release the probe test button. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 18: Ac/Dc Voltage And Frequency Measurements

    2. Press the Trms AC/DC test button (below) to switch to DC measurement. - Figure 10 The display will show a DC measurement as below: 4 00 6 00 8 00 2 00 100 0 - Figure 11 MIT400/2 and MIT2500 Series www.megger.com...

  • Page 19: For 3 Terminal Instruments (Mit481/2, Mit485/2 Only)

    6. If the display does not show the A-B option, press the A-E-B (T-G-R) button to change this mode, as below: - Figure 14 7. With each press, the display will change from: and back to - Figure 15 MIT400/2 and MIT2500 Series www.megger.com...

  • Page 20: Result Storage

    > 1sec. Refer to Section 12 for further information. WARNING - Where the A-E-B (T-G-R) symbol disappears, a voltage is present on a pair not currently selected. Press A-E-B (T-G-R) to locate the live pair or pairs. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 21: Insulation Resistance Testing

    ]. The instrument will display the range voltage selected in the display as below: 0.01 0.01 - Figure 17 MIT420/2 and MIT430/2 -Figure 17a MIT400/2 and MIT410/2 3. Connect the test leads to the circuit to be measured. MIT400/2 and MIT2500 Series www.megger.com...
  • Page 22 The display can show PASS or FAIL when the measurement is above or below the threshold in Setup when enabled. Refer to section 13 SETUP. This supersedes the test voltage display. 0.01 - Figure 20 Note: This function is independent of the Buzzer ON/OFF mode. MIT400/2 and MIT2500 Series www.megger.com...
  • Page 23 The display will replace the insulation test voltage with the leakage current during the insulation test, as below: 0.01 µ Note: Smaller readout displays leakage current. - Figure 22 4. Press the uA/s/v button again to return to test voltage display. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 24: Variable Voltage Insulation Testing (Mit420/2, Mit430/2, Mit485/2, Mit2500)

    (assigned t2), i.e. after 30 seconds and 60 seconds. DAR = 15 or 30 (default)* second value / 60 second value *See 'SETUP Configuration options'. During all insulation tests the symbol will flash indicating that a test voltage is present. MIT400/2 and MIT2500 Series www.megger.com...
  • Page 25 0.01 0.01 - Figure 24 4. Select the DAR function. 5. Press and release the TEST button to start the test. The display will show a count-down timer and the current insulation value, as above: MIT400/2 and MIT2500 Series www.megger.com...
  • Page 26 Note: Second measurement is logged at 0 seconds. Again, this is not stored in memory unless the "SAVE" button is pressed at the completion of the test, see section 9.3.4 8. The display can show results as detailed in the table below. Press the button repeatedly to scroll through the results: MIT400/2 and MIT2500 Series www.megger.com...
  • Page 27 9.4 For three terminal instruments (MIT481/2 and MIT485/2 only) Insulation tests can be made using the three terminal, for example terminal connection, or just two terminals. As default, the measurement is made across the RED/BLACK (B-A) pair, but can be changed, as below: MIT400/2 and MIT2500 Series www.megger.com...
  • Page 28 4 00 6 00 8 00 2 00 100 0 - Figure 30 7. With each press, the display will change from: - Figure 31 Or, if 'T-G-R' is enabled in setup: - Figure 31a MIT400/2 and MIT2500 Series www.megger.com...

  • Page 29: Esd Testing Mode

    9.5.2 Leakage current display Whilst the test is running it is possible to display the leakage current, rather than the test voltage in the smaller digital readout. To display the LEAKAGE CURRENT during the test, see Section 9.1.6. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 30: Ren Mode

    . The display will show a calculation or the REN number based on the result of the measurement. Note: Selection of the method depends on circuit design. A known circuit should be tested to establish which method is applicable to the type of installation being tested. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 31: Continuity Testing Ω

    The test current at which the measurement was made is displayed on the small digital readout, as highlighted below: 4 00 6 00 8 00 2 00 100 0 - Figure 33 MIT400/2 and MIT2500 Series www.megger.com...

  • Page 32: Single Or Bi-Directional Testing

    = 0.05 Ω ■ 10 A fused 1.2 m test leads = 0.07 Ω ■ 500 mA fused 1.2 m test leads = 1.80 Ω ■ These are only a guide and can change significantly between manufacturers. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 33: Buzzer Pass/Fail Threshold

    The continuity test current can be changed from 200 mA to 20 mA where extended battery life is the priority, refer to section 13 - SETUP (ISc). 10.8 Measurement for three terminal instruments See Section 7.3. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 34: Visual Fast Continuity (Silent Buzzer) Mode

    4. Make another continuity measurement. The display will show the difference between the two values. 5. To clear the REL value press the ∆Ω button again. Note: The REL function works across all three terminal configurations. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 35: Capacitance Measurements

    This is an automatic function and is calculated from the stored capacitance value based on the default value of 50 nF/km). This can be adjusted in SETUP between 40 nF/km and 70 nF/km. The result is displayed as below: µ - Figure 38 11.3 Capacitance measurement procedure (three terminals) See Section 7.3. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 36: Saving, Recalling And Downloading Test Results

    4. Press the STORE key to record the test result. - Figure 40 A unique identification number is allocated to each test result which is displayed for 2 seconds before returning to the test result. - Figure 41 5. Result is now stored. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 37: Test Results Recall

    2. Locate the particular test result identification number by using the UP and DOWN buttons, then press ‘OK’ to select; 3. The test result will be displayed. To scroll through the different measurements used in calculating the PI or DAR ratio, use the DOWN only button. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 38: Deleting Test Results

    ® 2. Megger Download Manager software must be installed on the destination PC. Megger “Download Manager” can be installed from the supplied CD or downloaded from the Megger web site. Follow the on-screen installation instructions during the installation process. 12.5 Procedure for pairing your MIT to the PC 1.

  • Page 39: Downloading Data To The Pc

    9. To delete a pair, press and hold down the LOCK [OK] button for two seconds. 12.6 Downloading data to the PC 1. Ensure download Manager is running on the PC. 2. Ensure the MIT is paired to the PC as above. MIT400/2 and MIT2500 Series www.megger.com...
  • Page 40 XLS (opens with no header conversion. Consequently the headers may not be easily interpreted) ® as would be the case using Megger CSV viewer. Further information on the options for Megger Download Manager can be found in the download manager help files in the application. MIT400/2 and MIT2500 Series...

  • Page 41: Setup Configuration Options

    MIT400ESD:- On/OFF display range Battery voltage 1.2 V / 1.5 V (All Models) 1.5 V Restore factory settings Restore LAng Display of either Tip-Ground-Ring US, EU or A-E-B LCD symbology Distance by uF m, ft MIT400/2 and MIT2500 Series www.megger.com...
  • Page 42 AC: 10 mV to 600 V TRMS sinusoidal (15 Hz to 400 Hz) DC: 0 to 600 V Voltage range accuracy AC: ±2% ±1 digit DC: ±2% ±2 digit Service Error: BS EN 61557-1 (2007) - ±2.0% ±2d, 0 V - 300 V ac/dc ± 5.1% MIT400/2 and MIT2500 Series www.megger.com...
  • Page 43 Environmental: Operating temperature range and humidity -10 to +55 °C 90% RH at 40 °C max. Storage temperature range -25 to +70 °C Calibration temperature +20 °C Maximum altitude 2000 m IP rating IP 54 MIT400/2 and MIT2500 Series www.megger.com...

  • Page 44: Battery And Fuse Replacement

    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 MIT. The Megger power supply is designed to preserve the functions and accuracy of the MIT.

  • Page 45: Blown Fuse Indicator

    Ensure batteries are removed if the instrument is left unused for an extended period. When necessary, the instrument can be cleaned with a damp cloth. Do not use alcohol based cleaners as these may leave a residue. MIT400/2 and MIT2500 Series www.megger.com...

  • Page 46: Repair And Warranty

    New instruments are covered by a three year warranty from the date of purchase by the user, the second and third year being conditional on the free registration of the product on www.megger.com. You will need to log in, or first register and then login to register your product.
  • Page 47 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 Weststraße 59 Valley Forge Corporate Center Dover 52074 Aachen, 2621 Van Buren Avenue Kent GERMANY...

This manual is also suitable for:

Mit400/2 seriesMit400/2-lg2Mit430/2Mit410/2

Table of Contents

Save PDF