Megger MFT1500 Quick Start Manual

M

MFT1500 Series

Multifunction Tester

Quick Start Guide

GSAFETY WARNINGS

■ Safety Warnings and Precautions must be read and understood

before the instrument is used. They must be observed during use.

■ The circuit under test must be switched off, de-energised and

isolated before test connections are made when carrying out insulation
and continuity tests.

■ Continuity of protective conductors and earthed equipotential bonding

of new or modified installations must be verified before carrying out
an earth fault loop impedance test, or RCD test.

■ Circuit connections and exposed metalwork of an installation or

equipment under test must not be touched.

■ The live circuit warning and Automatic discharge are additional safety

features and should not be regarded as a substitute for normal safe
working practices.

■ Do not move the rotary switch positions while a test is in progress.

■ The LCD ‘neon’ voltage indicators cannot reveal a Neutral - Earth

reversal. They cannot be relied upon to identify circuit correctness and
are for guidance only.

■ After insulation tests, capacitive circuits must be allowed to discharge

before disconnecting test leads.

■ The instrument should not be used if any part of it is damaged.

■ Test leads, probes and crocodile clips must be in good order, clean

and with no broken or cracked insulation.

■ Ensure that hands remain behind guards of probes/clips when testing.

■ U.K. Safety Authorities recommend the use of fused test leads when

measuring voltage on high energy systems.

■ Replacement fuses must be of the correct type and rating. Failure to fit

the correctly rated fuse will result in damage to the instrument in the
event of an overload.

NOTE

THE INSTRUMENT MUST ONLY BE USED BY SUITABLY TRAINED AND

COMPETENT PERSONS

Users of this equipment and/or their employers are reminded that Health
and Safety Legislation requires them to carry out valid risk assessments of
all electrical work so as to identify potential sources of electrical danger
and risk of electrical injury such as inadvertent short circuits.

Where the assessments show that the risk is significant then the use of
fused test leads constructed in accordance with the HSE guidance note
GS38 'Electrical Test Equipment for use by Electricians' should be used.

Symbols used on the instrument are:

F Caution: risk of electric shock
G Caution: refer to accompanying notes

t Equipment protected throughout by Double Insulation (Class II)
c Equipment complies with current EU directives.

>500V

G

Equipment must not be connected to installations >500 V.

BLUE (0º - 180º) ORANGE (BUZZER)

BLACK (BACKLIGHT) YELLOW (TEST)

RED
(LOCK)

Backlight (MFT1502 only)

Intelligent mode - operates automatically. To switch to manual
mode, press the RED lock and the BLACK backlight buttons
together.

Voltage, Continuity and Insulation testing

BLACK

RED

OPTION 1

2 wire lead
set

BLACK

PROBE

OPTION 2

Switched
probe

Voltage measurement (V)
Range switch set to (V) range

The MFT1500 will automatically display circuit voltage up to
500 V a.c./d.c.

Continuity Measurement [Ω]
Range switch set to [Ω] range

Test Lead options 1 or 2

The MFT1500 will automatically display continuity resistance
when connected.

Lead Null

Short test leads together and press the YELLOW test button on
the instrument or Switched Probe.

Continuity Buzzer (

The buzzer will sound automatically when a circuit is made
(default threshold <2 Ω)

Buzzer Threshold (

Select BUZZER range and press the ORANGE button until
required range is displayed.
Options, 2 Ω, 5 Ω, 10 Ω, 20 Ω, 50 Ω, and 100 Ω

Warning: Ensure the circuit to be tested is disconnected and
isolated before starting testing.

Z

Z

)

)