Multifunction Tester
萬用測試儀
Model : MFT1710
The MFT1710 series is a range of 4 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.
* 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
Insulation 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)
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
† Reference conditions apply
†† MFT1710 280 V
For test environments see service data
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 digits
Frequency resolution 0.1 Hz
Power supply
MFT1710 and MFT1720: IEC LR6 type AA alkaline
(6 cells – supplied)
MFT1730 and MFT1735: 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 / ground 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
ART method (1.00 Ω ~ 1.999 kΩ)
±5.0% ±3 digits**
Stakeless method (1.00 Ω ~ 199 Ω)
±7.0% ±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
(MFT1730 and MFT1735)
Including temperature (third party module)
±1.0% ±2 digits
Range 0.0 mV to ±199.9 mV dc
Resolution 0.1 mV
Data storage
(MFT1730 and MFT1735)
Capacity: 1000 results
Bluetooth communication
Safety
EC 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
Operating temperature
range and humidity
-10 °C ~ +55 °C
90% R.H. at +40 °C max
Storage temperature range
and humidity
-25 °C ~ +70 °C
Maximum altitude 2000 m
Weight (instrument and
case)
1 kg (with batteries, excluding
case)
Dimensions (instrument
and case)
150 mm H x 85 mm W x 235
mm D
IP rating IP54
Calibration temperature +20 °C
Temperature co-efficient <0,1% per °C
For test environments see service data.
The word PowerSuite is a registered trademark of Megger Limited.
The Bluetooth word mark and logo are owned by the Bluetooth SIG,
Inc. and any use of such marks by Megger is under licence.
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