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Megger MFT1741 User Manual

Megger MFT1741
64 pages
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MFT1741 and MFT1845
Multifunction Testers
MFT Addendum
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Megger MFT1741 Specifications

General IconGeneral
Continuity Test Current200 mA
Voltage MeasurementYes
Loop Impedance Range0.01 Ω to 2000 Ω
RCD Test Currents10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA
Frequency Measurement Range15 Hz to 400 Hz
IP RatingIP54
Insulation Resistance Test Voltage50 V, 100 V, 250 V, 500 V, 1000 V
RCD TestingType AC, A
DisplayBacklit LCD
Power Supply8 x 1.5 V AA cells
Continuity Measurement Range0.01 Ω to 1000 Ω
Insulation Resistance Measurement Range0.01 MΩ to 999 MΩ
PSC/PFC Range20 kA
Loop TestingYes (2-wire, 3-wire, High current and No Trip)

Summary

Addendum to Section 7.0

Confidence Meter Function

Explains how the Confidence Meter analyzes electrical noise for accurate loop impedance tests.

Instrument Display

Details the display elements of the instrument during loop impedance tests.

3Lo Loop Impedance Measurement

Discusses notes and important considerations for 3Lo loop impedance tests and RCD tripping.

3Lo Connection Options

Shows various connection configurations for 3Lo loop impedance tests.

Live Circuit Warning Screen

Describes warning screens indicating circuit suitability for RCD types.

Loop Impedance Test Start Screen

Illustrates the initial display during a loop impedance confidence test.

Analogue Arc Fluctuation

Explains how analogue arc fluctuations indicate noise levels during tests.

Final Result Display

Details the display of final results and the meaning of the analogue arc.

Test Completion and Confidence

Explains test completion criteria and how analogue arc size reflects confidence.

Manufacturing Sites

Megger Limited

Contact and address details for Megger's UK manufacturing site.

Megger USA - Valley Forge

Contact and address details for Megger's US Valley Forge site.

Megger GmbH

Contact and address details for Megger's German manufacturing site.

Megger USA - Dallas

Contact and address details for Megger's US Dallas site.

Megger AB

Contact and address details for Megger's Swedish manufacturing site.

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