Megger MFT1845+ Multifunction Tester

Megger MFT1845+ Multifunction Tester

The Megger MFT1845+ Multifunction Installation Tester stands out as a cutting-edge upgrade from its predecessor, the MFT1845. This enhanced model excels with its ability to perform fully automatic tests on 6mA DC differentials, making it an indispensable tool for low-voltage testing across domestic, commercial, and industrial electrical installations. Notably, the MFT1845+ also adheres to the ITC-52 standard, facilitating compliance testing for electric vehicle charging stations (ECVE).

One of the significant advancements in the MFT1845+ is its sophisticated loop testing technology. This feature is crucial when traditional high-current loop testing is not feasible due to differentials. The testers utilize an innovative anti-trip technology to deliver highly accurate loop test measurements even in environments with electrical noise and harmonics that typically skew results. The patented ‘Confidence Meter’ displayed on the MFT1845+ enhances reliability in measurements. This unique ARC screen indicator minimizes the need for retests by showing the dependability of loop test results in real-time.

Addressing common challenges in electrical testing, the MFT1845+ includes technology specifically designed to negate the impact of differential switch impedance, which is often a source of high-loop impedance readings in circuits protected by differential switches. This feature ensures more accurate measurements, fostering trust in the results obtained.

Megger MFT1845+Multifunction Tester specifications:

• Insulation test:

• Output voltage: -0% +20% at rated load or less
• Voltage display: ±3% ±3 digits ±0.5% of rated voltage
• Short circuit current: 1.5 mA nominal
• test currentTest current on loadL: 1 mA at min pass values of insulation

• Earth/ground test:

• Resolution: 0.01 Ω
• Current: 0.45 mA or 4.5 mA
• Noise rejection: 20 V pk/pk (7 V rms)
• Stakeless method: (1.00 Ω ~ 199 Ω) ±7.0% ±5 digits

• Ramp test:

• Touch voltage (0 ~ 253 V) :+5% +15% ±0.5 V
• Trip time: ±1% ±1 ms
• Trip current: ±3%