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Megger MFT1721 - Multifunction Installation Tester

Megger
Rating:
100% of 100

  • Suitable for single and 3 phase installation testing
  • FREE manufacturer's calibration certificate included*
  • FREE bundle included (many options to choose from)
  • Ready for 18th Edition
  • Regular Price £1,440.00 Special Price £838.80 £699.00

    Availability: In stock

    Ships tomorrow if ordered in the next 1 day, 11 hours and 51 minutes!

    Product Code
    MEGMFT1721

    Choose one of the free bundles when you order:

    • FREE TMK ST16 Socket Tester With Audible Indication (worth £18.95)
    • 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)


    Everything you need in one tester, the Megger MFT1721 is an upgrade to the widely popular Megger MFT1720, adding an additional 100V insulation test range, true RMS voltage measurement, mV sensor input and Type B RCD testing. Designed with the user in mind, test selection is made quickly by using the dials on the front, no need for multiple button pushing or tricky menu navigation.

    The Megger brand is associated with robust and rugged design and the MFT1721 is no exception. It's IP54 rated and can be connected across phases without any damage occurring. Drop it, bounce it or use it in the rain, the MFT1721 will still keep going. Your safety is of paramount importance in the design of this tester, therefore it won't go bang if the wrong test range is selected, or if it is connected to a live circuit by accident - even if the test button has been locked on!

    This multifunction unit has a comprehensive range of electrical installation tests, ideal for the domestic and commercial electrician alike.

    Non-Trip & High Current Earth Loop Testing
    Featuring Megger's unique two wire loop testing method, you can easily carry out a non-trip L-PE test (3 wire option also available), or high current L-L / L-N test. It features a resolution of 0.01Ω and performs the PSC / PFC test at the same time, simultaneously displaying the results.

    Continuity & Resistance Testing
    The MFT1721 has the option to perform a standard 200mA or low current 15mA continuity test with auto-start and a resistance range from 0.01Ω to 99.9kΩ. The buzzer is not only fast, but also has an adjustable threshold. In addition, once test leads have been nulled, the results will remain in the tester, even when it\'s been turned off.

    Insulation Test
    4 standard ranges are available, 100V, 250V, 500V & 1000V, with the test voltage being displayed alongside the resistance measurement. The buzzer threshold is adjustable and protection is built-in for live circuits up to 600V (even if the test button is locked on).

    RCD Test
    The auto-RCD test feature is a must for most electricians, so the MFT1721 includes this along with the standard trip time tests. A wide range of RCD types can be tested, including AC, A, B, Selective, Programmable and 3 Phase. Finally there is a ramp test option, ideal for pinpointing the exact current that the RCD will trip.

    Other Electrical Tests
    To complete the arsenal of tests, the MFT1721 includes voltage measurement from 10V to 600V AC / DC, frequency measurement from 15 - 400Hz and Phase Rotation.

    If you need Earth Electrode Tests or the Onboard Memory with Downloading Function, you might consider the next model, the Megger MFT1731.


    * requires in-service date to be filled in

    More Information
    ManufacturerMegger
    Manufacturer Part Number1008-123
    GTIN5036175234402
    ManualMFT1721
    DatasheetMFT1721
    DownloadingNo
    Earth testNo
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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
    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 MFT1721 Multifunction Tester
    • 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)
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