Megger MFT70 Specifications
MFT70
Multifunction Tester
MFT70
Multifunction Tester
Simple color-coded test selection and large
clear backlit display for ease of use
®
Internal memory and Bluetooth
communications
3-terminal ground test and stakeless testing
for spike resistance measurement
GFCI testing as defined in the ANSI/UL 943,
CSA C22.2 No. 144.1 and ANCE NMX-J-520
IEC61010 CATIV safety ratings and tough
IP54 case
DESCRIPTION
The MFT70 Multifunction Tester is designed for testing low voltage
electrical installations to fulfill the requirements of NFPA70 and the
National Electrical Code. It provides all the tests required to complete
the necessary electrical certification for industrial, commercial and
domestic fixed wiring installations, including:
System voltage and frequency measurement (TRMS)
Insulation test at 100 V, 250 V, 500 V and 1000 V
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 – no need to press TEST which leaves
both hands free to hold probes
Resistance range up to 100 kΩ
• Fast continuity buzzer and selectable thresholds
GFCI test
• Ramp test displays trip current
Ground testing
• 2-pole
• 3-pole
• Attached Rod Technique (ART)
• Stakeless techniques
This instrument is IEC 61010 CAT IV 300 V rated for connection to low
voltage systems with no protective device, so it is safe for connection
anywhere on the system up to the source transformer without risk of
damage from large transient spikes.
The unique modern styling allows it to be operated while standing on
the floor, a ladder-shelf or platform, hung around the neck or handheld. Dual TEST and LOCK buttons – one pair at each end – make the
tester easy to operate with either the left or right hand.
Easy to pick up and use, the rotary controls are color coded to
make range selection fast. They also reduce the chance of using the
wrong function or range. The large crystal clear backlit display uses
the patented Megger digital/analog arc, providing an indication of
fluctuating readings. The dual digital readout shows precise values of
key measurements and the test parameters simultaneously, such as
the output voltage on insulation testing as well as the resistance value
in MΩ.
Visible and audible safety warnings are paramount when testing highenergy systems, and the MFT70 includes full input protection and safety
warnings when a hazardous voltage is present. If live voltages exist on a
circuit during insulation or continuity testing, the voltage is displayed on
the screen. If this voltage exceeds a safe level, further testing is inhibited
and a warning beep sounds.
The MFT70 features internally rechargeable batteries with a charge time
of less than 4 hours, which reduces the cost of ownership.
MFT70
Multifunction Tester
Fully compliant with all requirements of IEC60364 derived standards, the
MFT70 includes all the latest measurement technology in a lightweight
compact design and is fully protected and usable on single phase and
three phase installations.
The MFT70 combines quick continuity resistance with a number of
insulation resistance tests as well as testing of GFCIs, alleviating the
need for multiple separate function test instruments.
®
The unit includes built in memory and Bluetooth
downloading of memory using Megger Download Manager (supplied)
for simple form filling of test results.
The MFT70 is designed for tough environments and ultimate reliability.
Features include a rubber over mold for extra protection and grip, IP54
protection against dust and water and an IEC61010 CAT IV safety rating.
Its class leading input protection ensures the MFT70 can withstand
accidental misuse and voltage transients when other testers can’t.
All this in an intuitive and easy to use instrument with no hidden menus
or complicated screens. Tests are easily selected using the color coded
rotary switches with results clearly displayed on the high contrast dual
measurement backlit display.
Included with the instrument are a standard 3-wire lead set and a mains
test lead, a switched probe for fast and easy testing, a full 12-month
calibration certificate, and 12-month warranty upgradeable to 3 years.
The MFT70 is supplied in a robust molded case with plenty of additional
space for optional extras like a few tools and the ground electrode test
kit, comprising 2 spikes and 3 long test leads. FREE download software
is also included with the MFT70.
*Requires optional accessory
communications for
APPLICATIONS
Electrical Installations, domestic, commercial and industrial
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 current
Test current on load 1 mA at min pass values of insulation
Measurement accuracy
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
Resistance and continuity
0.01 Ω - 99.9 Ω ±2% ±2 digits
100 Ω - 99.9 kΩ ±5% ±2 digits
Open circuit voltage 5 V ±1 V
Test current (0 Ω - 2 Ω)
205 mA ±5 mA
15 mA ±5 mA
(user selectable)
GFCI Test
Intrinsic current accuracy:
Ramp test current: ±5% ±1 digit
Supply: 48 V - 280 V 45 Hz to 65 Hz
Max service error: ±10% ±2 digits
Ground rod testing
Solar
Maintenance
FEATURES AND BENEFITS
Safety - IEC 61010 CAT IV 300 V means this is safe for connection up to
the source transformer.
Low cost - one instrument means less cost upfront as well as lower cost
of ownership with regards to service and calibration.
Compliance - fulfills the requirements of NFPA70 and the National
Electrical Code.
Ease of use - simple rotary dials showing all tests available and no
hidden menus.
Efficiency - built in memory allows results to be stored on the go and
transferred to a Bluetooth
®
enabled device for full traceability.
Supply measurement
Voltage 10 V - 600 V
(15 - 400 Hz) True RMS
±3% ± 1 V ±2 digits
Phase rotation indication
L1–L2–L3 and L1–L3–L2
Frequency 15 Hz - 99 Hz ±0.5% ±1 digit
100 Hz - 400 Hz ±2.0% ±2 digits
Frequency resolution 0.1 Hz
Power supply
Charger for on-board recharging (4 hours typical)
12 V car charger (cigarette lighter lead - optional)
Loading...