Megger MFT1845 Bruksanvisning

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MFT1845+

Multifunction Tester

DESCRIPTION

The MFT1845+ multifunction tester is an instrument

designed for testing low voltage electrical installations and

especially 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, and includes:

TRMS System voltage and frequency

measurement

Insulation test at 100 V, 250 V, 500 V and 1000

V Including input protection against live circuits

up to 600 V even when insulation test is locked-

on

Continuity resistance at 200 mA or 15 mA

Automatic start - no need to press TEST so

leaving both hands free to hold probes

Resistance range up to 100 kΩ with fast

continuity buzzer at selectable thresholds

TrueLoop™ enhanced non-trip technology:

• New 3 wire non-trip technology

• New confidence meter measurement

• 2 and 3 wire non-trip range

• 2 wire Hi current including phase to phase

• Prospective fault current measurement up to

20 kA

RCD testing including:

• Type ac, A, S, B and programmable RCDs

• Testing of Electric Vehicle Charge Points

RCDs*

• 3-phase RCDs

• Auto-test routine

• EV Charge Point RCD Testing

Earth spike testing

• 2-pole/3-pole**, ART** and Stake-less**

techniques

TrueLoop™ Enhanced non-trip loop impedance

measurement technology:

The MFT1845+ includes a new non-trip loop testing

technology that:

Prevents any influence the RCD may present to

the total loop impedance value.

Faster non-trip loop testing down to 8 seconds.

This technique also allows testing of loop impedance

through 10 mA type ac and Type A RCDs.

Confidence meter measurement analysis ™

Overlaying the new non-trip loop impedance measurement

is the Megger 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.

Electric vehicle charge point testing

The MFT1845+ includes an automatic EV Charge Point RCD

test sequence, including the 6 mA dc test*. Test results can

be reviewed or saved to memory and reviewed later.

* EVCA Adapter Accessories required

** Earth Test and Current Measurement Accessories required

■Testing of Electric Vehicle Charge Points*

■TrueLoop™ Enhanced non-trip loop impedance

measurement technology

■Full single and 3 phase compliant installation

testing

■10 mA to 1 A single and 3 phase RCD testing

■Earth testing and stake-less testing for electrode

resistance measurement**

■Simple colour-coded test selection

■Ambidextrous operation

■Internal memory and Bluetooth® communications

■EN61010 CAT IV safety rating and tough IP54 case

Produktspecifikationer