Datasheet

3
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
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 supply - 48 V ~ 280 V (45 Hz ~ 65 Hz)
Live to live supply- 48 V ~ 500 V (45 Hz ~ 65 Hz)
L-N/L-L tests - ±5% ±3 digits
L-E tests*
0.1 Ω ~ 39.9 Ω ±5% - ±5 digits ± noise margin
40.0 Ω ~ 999 Ω - ±10% ±5 digits
Display range - 0.01 Ω ~ 999 Ω
Live to earth PFC range - 20 kA
Live to live PSCC range - 20 kA
* Reference conditions apply.
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 -10% ~ -0%
(1/2xI)
Trip test +0% ~ +10%
(1xI, 2xI & 5xI)
Ramp test
Touch voltage +5% +15% ±0.5 V
(0 ~ 253 V)
Trip time ±1% ±1 ms
Trip current ±3%
Step increments
VAR 10 mA ~ 50 mA 1 mA steps
(variable RCD selection)
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 L1-L2-L3 & L1-L3-L2
indication
Frequency 15 Hz ~ 99 Hz ±0.5% ±1 digit
100 Hz ~ 400 Hz ±2.0% ±2 digits
Frequency resolution 0.1 Hz
Power supply
MFT1815 & MFT1825:
IEC LR6 type AA alkaline
(6 cells - supplied)
MFT1835:
1.2 V NiMH (rechargeable 6 cells 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
(MFT1835)
including temperature (third party module)
±1.0% ±2 digits
Range - 0.0 mV to ±199.9 mV dc
Resolution 0.1 mV
Data storage
(MFT1835)
Capacity - 1000 results
Bluetooth communication