Atec MFT1700 User Manual

MFT1700 Series

Multifunction Tester

MFT1700 Series

Multifunction Tester

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Simple colour-coded test selection with
large clear backlit display for ease of use

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Two wire non trip loop testing for fast
repeatable results

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3-phase RCD testing for industrial
applications with no earth

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3-terminal earth test for electrode
resistance measurement

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On-board data storage and Bluetooth®
download

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EN61010 CATIV safety rating and tough IP54
case

DESCRIPTION

The MFT1700 series is a range of 3 instruments for testing
low voltage electrical installations to BS7671. They provide
all the tests required to complete the necessary electrical
certification for industrial, commercial and domestic fixed
wiring installations, including:

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System voltage and frequency measurement (TRMS)*

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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

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Continuity resistance at 200 mA or 15 mA*

Automatic start – no need to press TEST so leaving both
hands free to hold probes

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Resistance range up to 100 kΩ

With fast continuity buzzer at selectable thresholds

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2-wire loop test

Non-trip (RCD) and high-current testing
Including Phase-to-Phase

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Prospective fault current measurement

Up to 20 kA

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RCD testing including:

Type AC, A, S, B* and programmable RCDs
3-phase RCDs*
Auto-test routine
Fault (Touch) voltage display

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3-pole earth testing

All instruments are IEC 61010 CAT IV 300 V rated for
connection to low voltage systems with no protective device,
so safe for connection anywhere on the system right up to
the source transformer without risk of damage from large
transient spikes.

The unique modern styling allows it to be operated while
stood on the floor, a ladder-shelf or platform, hung around
the neck or handheld. Dual TEST and LOCK buttons – one
pair at each end – makes the testers easy to operate left or
right handed.

Quick to pick up and use, the controls are colour coded to
make range selection easy and fast. They also reduce the
chance of using the wrong function or range. The large
crystal clear backlit display uses the patented Megger digital/
analogue arc, providing indication of fluctuating readings
while the dual digital readout shows precise values of key
measurements simultaneously with the test parameters, 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 high-energy systems and the MFT1700 series 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 MFT1730 features internally rechargeable batteries and
charger with a charge time of less than 4 hrs, so reducing the
cost of ownership.

Fully compliant with all requirements of IEC 60364 derived
standards including VDE 0100 and BS 7671, the new MFT
includes all the latest measurement technology in a light­weight compact design, fully protected and usable on single
phase and 3 phase installations.

New measurement functions include two and three wire
non-trip loop test technology for fast repeatable results,
comprehensive testing of RCDs including type B, and
integrated 3-terminal techniques for earth electrode testing.

MFT1700

Multifunction Tester

The MFT1730 includes built in memory and Bluetooth
communications for downloading test results using Megger
Download Manager (supplied). As an option, the MFT1730
is available complete with PowerSuite® Lite combined with
Ultra Mobile software as the MFT1730 On-Site. PowerSuite
provides a professional solution to certification with electronic
form completion from stored data within the MFT, either
downloaded to a mobile device such as a Smartphone,
or direct to a PC. See the separate datasheet on Megger
PowerSuite software for further details.

The new MFT1700 series has been designed for tough
environments and ultimate reliability. Features include
a rubber over mould for extra protection and grip, IP54
protection against dust and water and an EN61010 Cat IV
safety rating. Its class leading input protection ensures
the new MFT 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 colour coded rotary switches with results
clearly displayed on the high contrast, dual measurement,
backlit display.

Included with the instrument:
standard 3-wire leadset and a mains test lead, a switched
probe for fast and easy testing*, a full 12-month calibration
certificate and warranty upgradeable to 3 years. The MFT is
supplied in a robust moulded case with plenty of additional
space for optional extras like a few tools and the earth
electrode test kit, comprising 2 spikes and 3 long test leads.

* model dependant

** requires optional accessory

Product selection chart

Insulation ranges

100 V

250 V, 500 V

1000 V

Test voltage display

Adjustable buzzer threshold

Continuity and
resistance ranges

200 mA test

15 mA test

Adjustable buzzer threshold

RCD tests

1/2, 1, 5 x I & ramp RCD test

Auto RCD test

Type AC, A & S RCDs

Type B (pure DC) RCDs

Programmable RCD

3-phase RCD (no earth)

30, 100, 300 & 500 mA RCD

10 mA & 1000 mA RCD

Loop testing

2 and 3 wire non-tripping
L-PE 50 V ~ 280 V

2 wire Hi current L-N 50 V
~ 280 V

2 wire phase to phase L-L
50 V ~ 500 V

PSCC & PFC (20 kA max.)

Max. Zs display

R1 + R2 value

Touch voltage display on
faulty earth

Earth electrode test

2 & 3 pole **

Other features

Supply measurement

True RMS

Leakage current
measurement**

Phase rotation

Calibration certificate

Rechargeable batteries
(charger included)

SP5 Switched probe included

Warranty upgradeable to 3
years FREE

On board memory with
Bluetooth download

CAT IV 300 V / CATIII 600 V

MFT1710 MFT1720 MFT1730

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MFT1700

Multifunction Tester

SPECIFICATION

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

Continuity / resistance

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)

Loop test

Live to earth/neutral supply 48 V ~ 280 V (45 Hz ~ 65 Hz)
Live to live supply (not MFT1710) 48 V ~ 500 V** (45 Hz ~ 65 Hz)
L-N/L-L tests ±5% ±5 digits

L-E* tests

0.1 Ω ~ 39.9 Ω ±5% ±5 digits ± noise margin

40.0 Ω ~ 1000 Ω ±10% ±5 digits

Display range 0.01 Ω ~ 1000 Ω
Live to earth PFC range 20 kA
Live to live PSCC range 20 kA

RCD tests

Supply up to 100 mA 48 V ~ 480 V** (45 Hz ~ 65 Hz)
Supply up to 1 A 48 V ~ 280 V
RCD type Type AC, A, S
Type B (pure dc)
No trip test (1/2xI) –10% ~ –0%
Trip test (1xI, 2xI & 5xI) +0% ~ +10%
Ramp test
Touch voltage (0 ~ 253 V) +5% +15% ±0.5 V
Trip time ±1% ±1 ms
Trip current ±5%
Step increments
VAR (variable RCD selection) 10 mA ~ 50 mA 1 mA steps.
50 mA ~ 500 mA 5 mA steps
500 mA ~ 1000 mA 10 mA steps

Supply measurement

Voltage 10 V ~ 600 V (15 ~ 400 Hz) True
RMS
±3% ± 1 V ±2 digits
Phase rotation indication L1–L2–L3 & L1–L3–L2
Frequency 15 Hz ~ 99 Hz ±0.5% ±1 digit
100 Hz ~ 400 Hz ±2.0% ±2 digit
Frequency resolution 0.1 Hz

Power

MFT1710 & MFT1720: IEC LR6 type AA alkaline
(6 cells - supplied)

MFT1730: 1.2 V NiMH (rechargeable pack
of 6 – supplied)
Mains charger for on-board
re-charging (4 hours typical)
12 V car charger (cigar lighter lead

- optional)

Earth test

Resolution 0.01 Ω
Current 0.45 mA or 4.5 mA
Noise rejection 20 V pk/pk (7 V rms).
Max probe resistances Rp & Rc
100 kΩ @ 50 V
5 kΩ @ 25 V
2 & 3 pole method (0.01 Ω ~ 1.999 kΩ)
±2.0% ±3 digits

Current (via optional clamp meter)

±5.0% ±3 digits.
Range 0.1 mA to 200 A ac
Resolution 0.1 mA

mV Sensor input

including temperature (third party module)
±1.0% ±2 digits
Range 0.0 mV to ±199.9 mV dc
Resolution 0.1 mV

Internal memory (MFT1730)

Capacity 1000 results
Bluetooth communication

Design standards
Safety

IEC 61010-1:2010
IEC 61010-30:2010
IEC 61010-031:2008
600 V Cat III / 300 V Cat IV (Max Phase to Phase 600 V)
IEC 61557:2007 parts 1 to 10

EMC
IEC61326 edition 2 location class B

Environmental

Temperature (operational) -10 °C ~ +55 °C
Temperature (storage) -25 °C ~ +70 °C
Operating humidity 90% R.H. at +40 °C max
Max altitude 2000 m

Weight 1 kg (with batteries, excluding case)

Dimensions 150 mm H x 85 mm W x 235 mm D

Moisture/dust ingress protection IP54

Calibration Temperature: +20 °C

Temperature effects

Temperature coefficient: <0,1% per °C

**MFT1710 280 V

* Reference conditions apply.

For test environments see service data.

MFT1700

Multifunction Tester

The word ‘Megger’ is a registered trademark

The word ‘PowerSuite’ is a registered trademark of Megger Limited

The Bluetooth word mark/logo are owned by Bluetooth SIG. Inc.

ORDERING INFORMATION

Item (Qty) Cat. No.

MFT1710-AU 1002-394

MFT1710-BS 1002-395

MFT1720-BS 1002-396

MFT1730-BS 1002-400

Included accessories

Printed quick start guide

Full user guide on CD

Calibration certificate

Switched probe SP5 (not with MFT1710) 1002-774

Neck strap - Megger embroidered 2001-509

3 Wire lead set with prods and clips 1001-991

SIA10 Socket interface adaptor UK to 3 x 4 mm (BS) 6220-810

SIA20 Socket interface adaptor UK to 3 x 4 mm (AU) 6220-828

Plug-in battery charger 2001-697

UK

Archcliffe Road Dover
CT17 9EN England
T [phone]
F [phone]
[e-mail]

UNITED STATES

4271 Bronze Way
Dallas TX 75237-1019 USA
T 800 723 2861 (USA only)
T [phone]
F [phone]
[e-mail]

Item (Qty) Cat. No.

Optional accessories

PowerSuite Lite 1000-631

PowerSuite Lite On-Site (mobile) 1000-632

Euro mains test lead SIA45 2000-674

Fused 10 A test lead set (red/blue/green) with
prods and clips 1001-975

ETL30, 30 m extension test lead 1000-215

ETL50, 50 m extension test lead 1000-217

12 V charger lead 6280-332

Earth electrode kit 1001-810

Switched Probe SP5 (silicone) 1001-687

Current clamp ICLAMP

OTHER TECHNICAL SALES OFFICES

Valley Forge USA, College Station USA,
Sydney AUSTRALIA, Täby SWEDEN, Ontario
CANADA, Trappes FRANCE, Oberursel
GERMANY, Aargau SWITZERLAND, Kingdom
of BAHRAIN, Mumbai INDIA, Johannesburg
SOUTH AFRICA, Chonburi THAILAND, Malaga
SPAIN

CERTIFICATION ISO

Registered to ISO 9001:2008 Cert. no. Q 09250

Registered to ISO 14001-2004 Cert. no. EMS 61597

MFT1700_DS_en_V08

www.megger.com

Megger is a registered trademark