Megger MFT1741 - Multifunction Installation Tester

Megger
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  • For industrial, commercial or domestic installations with high electrical noise
  • FREE manufacturer's calibration certificate included*
  • FREE bundle included (many options to choose from)
  • Ready for 18th Edition
  • Special Price £1,040.40 £867.00 Regular Price £1,818.00

    Availability: In stock

    Ships today if ordered in the next 10 hours and 11 minutes!

    Product Code
    MEGMFT1741

    Choose one of the free bundles when you order:

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    • FREE Martindale CB12 Calibration Checkbox (worth £56)
    • FREE Martindale TL78 50m R2 Test Wander Lead (worth £79)
    • FREE Martindale CM51A 300A Clamp Meter (worth £69)


    The Megger MFT1741 multifunction tester has been designed for testing low voltage electrical installations, particularly in locations that suffer from high electrical noise. It provides all the tests required to complete the necessary electrical certification for industrial, commercial and domestic fixed wiring installations.


    Overlaying the new non-trip loop impedance measurement is the new “confidence meter”. As loop impedance values can be dramatically affected by circuit noise, the Confidence Meter displays the degree of confidence in the accuracy of the measured loop impedance. Using the digital ARC to indicate the analytical process, the measurement is continually monitored and adjusted when circuit noise is present, resulting in a dramatically improved and repeatable test result.

    The MFT1741 offers a wide range of test functions, designed for all electrical installation testing and verification of low voltage building wiring and distribution testing scenarios. The MFT1741 is IEC 61010 CAT IV 300 V rated for safe connection anywhere within the LV network on single and three-phase systems.


    The new Confidence Meter has been enabled on the three-wire loop impedance measurement mode (3Lo) of the Megger MFT1741. This replaces the existing 3-wire loop technology, offering the following benefits:

  • - New Confidence Meter adaptive measurement
  • - Graphical representation of measurement ‘quality’ using the analogue arc
  • - Stable, repeatable loop test result on noisy circuits
  • - Reduced need for multiple testing from variable results
  • - The ability to test through 10 mA RCDs and RCBOs
  • - Option for testing 30 mA Type B RCDs without the risk of tripping

  • In use:

    The 3Lo measurement should be chosen only where testing through an RCD or RCBO is required. Connection of the MFT1741 or MFT1845 is made to the phase, neutral and earth conductors using either the standard mains plug test lead or a three-wire test lead.

    Pressing the TEST button will perform a safety check to ensure no hazardous earth conditions exist. The test sequence will then measure the earth loop impedance of the circuit and display an initial value within a four second window.


    * requires in-service date to be filled in

    More Information
    ManufacturerMegger
    Manufacturer Part Number1009-986
    GTIN5036175238110
    ManualMFT1741
    DatasheetMFT1741
    DownloadingYes
    Earth testYes
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    General Specification

    Accuracy

    Insulation test:

    • 1000 Volts 10 kΩ - 999 MΩ ±3% ±2 digits
    • 500 Volts. 10 kΩ - 500 MΩ ±3% ±2 digits >500 MΩ ±10% ±4 digits
    • 250 Volts. 10 kΩ - 250 MΩ ±3% ±2 digits >250 MΩ ±10% ±4 digits
    • 100 Volts. 10 kΩ - 100 MΩ ±3% ±2 digits >100 MΩ ±10% ±4 digits
    • EN61557 range: 10 kΩ - 999 MΩ (1000 V range)
    • Voltage display: ±3% ±3 digits ±0.5% of rated voltage
    • Max service error: ±15% ±2 digits.
    • Short circuit current: 1.5 mA nominal test current
    • Test current on load: ≥1 mA at min. pass values of insulation
    • Output voltage tolerance: -0% +20% at rated load or less
    Continuity / Resistance:
    • Intrinsic accuracy: ±2% ±2 digits (0.01 Ω to 99.9 Ω), ±5% ±2 digits (100 Ω to 99.9 kΩ)
    • EN61557 range: 0.1 Ω to 99.9 kΩ
    • Open circuit voltage 5 V ±1 V
    • Test current at 200 mA (0 Ω to 2 Ω): >200 mA @ ≤2 Ω
    • Test current at 15 mA (0 Ω to 2 Ω): >15mA @ ≤2 Ω
    • Max Service error: ±12% ±2 digits.
    Loop test 2Hi (L-PE, L-N, L-L):
    • Intrinsic accuracy: ±5% ±3 digits
    • Display range: 0.01 Ω to 1000 Ω
    • Supply: 48 V to 480 V* (45 Hz to 65 Hz)
    • Test current high: 4.0 A (at 230 V)
    • PSCC range: 20 kA
    • EN61557 range: 0.30 Ω to 1000 Ω
    • Max service error: ±10% ±2 digits
    Loop test 3Lo, 2Lo (L-E):
    • Intrinsic accuracy: 0.01 Ω to 39.9 Ω ±5% ±5 digits
    • 40.0 Ω to 999 Ω ±10% ±5 digits
    • Display range: 0.01 Ω to 1000 Ω
    • Supply: 48 V to 280 V (45 Hz to 65 Hz)
    • Test current: Pulsed
    • PFC range: 20 kA
    • EN61557 range: 1.0 Ω to 1000 Ω
    • Max service error: ±10% ±2 digits
    RCD test:
    • Intrinsic current accuracy:
    • No trip test: (1/2xI) –10% to 0%
    • Trip test: (1xI, 2xI and 5xI) +0% to +10%.
    • Ramp test current: ±5% ±1 digit
    • Trip time: ±1% ±1 ms
    • Programmable step increments: 10 mA to 50 mA - 1 mA steps, 50 mA to 500 mA - 5 mA steps, 500 mA to 1000 mA - 10 mA steps.
    • Supply: 48 V - 280 V 45 Hz to 65 Hz
    • Max service error: ±10% ±2 digits
    Voltage:
    • Intrinsic accuracy: ±2% ±1 V
    • EN61557-1 Range: 10 V to 600 V
    • Phase rotation indication.
    • Max service error: ±5% ±2 digits
    Frequency:
    • Intrinsic accuracy: ±0.5% ±2 digits
    • Resolution: 0.1 Hz
    • EN61557 Range: 15 Hz to 400 Hz
    • Max service error: ±5% ±3 digits
    Earth Test Ranges:
    • Intrinsic accuracy: ±2.0% ±3 digits
    • ART method ±5.0% ±3 digits
    • Stakeless method ±7.0% ±3 digits
    • Resolution: 0.01 Ω
    • EN61557 range: 1.0 Ω to 1.99 kΩ
    • Current: 0.45 mA or 4.5 mA.
    • Noise rejection: 20 V pk/pk (7 V rms)
    • Max probe resistances: Rp, Rc = 100 kΩ @ 50 V
    • Max service error: ±20% ±3 digits
    Current (via Clamp meter):
    • Intrinsic accuracy: ±5.0% ±3 digits
    • Resolution: 0.1 mA
    • EN61557 Range: 0.5 mA – 199 A
    • Max service error: ±10% ±2 digits
    mV Sensor input
    • Including temperature (third party module)
    • ±1.0% ±2 digits
    • Range 0.0 mV to ±199.9 mV dc
    • Resolution 0.1 mV
    Internal memory
    • Capacity 1000 results
    • Bluetooth® communication
    Power consumption:
    • Nominal minimum: 60 mA (Voltage range with no input voltage)
    • Nominal maximum: 350 mA (Active Insulation test set to 1000 V / 1 MΩ)
    • Range: -20 °C to +55 °C
  • Temperature (via 3rd Party Module):
    • Intrinsic accuracy: ±1.0% ±2 digits
    • Resolution: 1 °C
    • Range: -20 °C to +100 °C
    Environmental Specification

    Temperature

    • Operational range: -10 °C to +55 °C
    • Storage range: -25 °C to +70 °C
    Humidity
    • Operating humidity: 90% R.H. at +40 °C max.
    Altitude
    • 2000 m to full safety specification.

    Weight: 1000 g ±10% including batteries but excluding test leads, accessories and carry case.

    Dimensions: 150 mm high x 85 mm wide x 235 mm deep (6 in. x 3.5 in. x 9.5 in.)

    IP rating: IP54

    Power Supply

    • Battery: Primary 6 x 1,5 V cells IEC LR6 type (AA alkaline,).
    • Battery: Rechargeable: 6 x 1.2 VNiMH cells EC HR6.
    • Display shows rechargeable [NiMH] when the battery type is changed in setup option (Section 10).

    Safety / EMC
    EMC In accordance with IEC61326 edition 2.
    Locations: Class B locations.
    Safety in accordance with BS EN 61010 -1 2010 + 61010 -30:2010
    Installation Category: 600 V CAT III / 300 V CAT IV. (Max Phase to Phase 550 V)
    In addition switch probe and test leads are designed to meet IEC 1010-031:2008, Double insulated to Installation Category III, 300 V phase to earth, 500 V phase to phase.

    • Megger MFT1741 Multifunction Tester
    • Printed quick start guide
    • Full user guide on CD
    • Calibration certificate
    • Switched probe SP5
    • Neck strap - Megger embroidered
    • 3 Wire lead set with prods and clips
    • Mains plug test lead (BS1363)
    • AC battery charger
    • Large soft pouch with extra storage