- Features & Specification
Megger MFT1741 Multifunction Tester
The MFT1741 multifunction tester has been designed for testing low voltage electrical installations, particularly in locations that suffer from high electrical noise. It provides all the tests required to complete the necessary electrical certification for industrial, commercial and domestic fixed wiring installations.
Overlaying the new non-trip loop impedance measurement is the new “confidence meter”. As loop impedance values can be dramatically affected by circuit noise, the Confidence Meter displays the degree of confidence in the accuracy of the measured loop impedance. Using the digital ARC to indicate the analytical process, the measurement is continually monitored and adjusted when circuit noise is present, resulting in a dramatically improved and repeatable test result.
The MFT1741 offers a wide range of test functions, designed for all electrical installation testing and verification of low voltage building wiring and distribution testing scenarios. The MFT1741 is IEC 61010 CAT IV 300 V rated for safe connection anywhere within the LV network on single and three-phase systems.
Megger MFT1741 Comes Supplied With:
- Megger MFT1741 Multifunction Tester 1009-986
- 3 wire test lead set with probes and crocodile clips
- Mains plug test lead
- Rechargeable batteries and charger
- Switched test probe for remote testing
- Megger embroidered Neck strap
- Carry case
- Full user guide CD for MFT1741
- Megger calibration certificate
- TRMS System voltage and frequency measurement
- 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
- Continuity resistance at 200 mA or 15 mA
- Automatic start - no need to press TEST so leaving both hands free to hold probes
- Resistance range up to 100 kΩ with fast continuity buzzer at selectable thresholds
- Earth loop impedance testing, with:
• New 3 wire non-trip technology
• New confidence meter measurement
• 2 and 3 wire non-trip range
• 2 wire Hi current including phase to phase
• Prospective fault current measurement up to 20 kA
- RCD testing including:
• Type AC, A, S, B and programmable RCDs
• 3-phase RCDs • Auto-test routine
• Fault (Touch) voltage display
- Earth spike testing
• 2-pole/3-pole*, ART* and Stake-less* techniques
- Enhanced non-trip loop impedance measurement technology
- “Confidence meter” measurement analysis (patent pending)
- Full single and 3 phase compliant installation testing
- 10 mA to 1 A single and 3 phase RCD testing
- Earth testing and stake-less testing for electrode resistance measurement*
- Simple colour-coded test selection
- Ambidextrous operation
- Internal memory and Bluetooth® communications
- EN61010 CAT IV safety rating and tough IP54 case
New Loop Impedance testing technology
- Prevents any influence the RCD may present to the total loop impedance value.
- Faster non-trip loop testing down to 8 seconds. This technique also allows testing of loop impedance through 10mA type AC and Type A RCDs.
New “Confidence meter*” measurement analysis (Patent pending)
If this voltage exceeds a safe level, further testing is inhibited and a warning beep sounds. The MFT1741 features internally rechargeable batteries and charger with a charge time of less than 4 hrs, so reducing the cost of ownership.
Spares & Accessories (Not Supplied):
- PowerSuite Lite 1000-631
- Fused 10 A test lead set (red/blue/green) with prods and clips 1001-975
- ETL30 Extension Test Lead 30 m 1000-215
- ETL50 Extension Test Lead 50 m 1000-217
- Cigar lighter adapter for battery charging 6280-332
- Switched Probe SP5 (silicone) 1001-687 ICLAMP
- Current measuring clamp 1001-012
- VCLAMP Voltage inducing clamp, calibration check pcb (for stakeless test) and lead 1001-013
- Electrode kit 1001-810
- Test and carry pouch 1006-408
- 3 Pole Earth Test Kit 6210-160
ISSWWW and Megger
The extensive Megger product portfolio provides electrical test equipment for an exceptionally wide range of applications at any point of the electricity network. From small handheld low voltage equipment such as multifunction installation testers through to high voltage asset test equipment like insulation resistance testers, circuit breaker analysers, protection relay test systems to transformer condition measurement devices.
Megger designs and manufactures portable electrical test equipment in factories located in Germany, Sweden, the UK, and USA. Megger products help you install, improve efficiency, reduce cost and extend the life of you or your customers’ electrical assets.
Established in the late 1800s, the company has been designing and making test and measurement instruments that perform electrical measurements for preventative maintenance, troubleshooting and commissioning for decades. Megger products have supported customers all over the world to improve their facilities’ efficiency, reduce costs, extend the life of apparatus and through trending and analysis, anticipate equipment failure and future performance.
Being a brand synonymous with the industry and a cornerstone pioneer of many of today’s everyday items of test equipment, ISSWWW are proud to bring you Megger’s full range of equipment and services, now and into the future.
|Megger MFT1741 Multifunction Tester|
|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|
|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 & 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
|Live to earth/neutral 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% ±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
For test environments see service data
|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 and 5xI)+0% ~ +10%|
|(0 ~ 253 V)||+5% +15% ±0.5 V|
|Trip time||±1% ±1 ms|
|VAR (variable RCD selection)|
|10 mA ~ 50 mA||1mA Steps|
|50 mA ~ 500 mA||5mA Steps|
|500 mA ~ 1000 mA||10mA Steps|
|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
|Batteries||IEC LR6 type AA alkaline
(6 cells - supplied)
or 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|
|Noise rejection||20 V pk/pk (7 V rms)|
|Max probe resistances||Rp and Rc
100 kΩ @ 50 V
5 kΩ @ 25 V
|2 and 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*
|(via optional clamp meter) ±5.0% ±3 digits|
|Range||0.1 mA to 200 A ac|
|mV Sensor Input|
|Including temperature (third party module)||±1.0% ±2 digits|
|Range||0.0 mV to ±199.9 mV dc|
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|
|Weight (instrument and case)||1 kg (with batteries, excluding case)|
|Dimensions (instrument and case)||220 mm H x 390 mm W x 285 mm D|
|Calibration Temperature||+20 °C|
|Temperature co-efficient||<0,1% per °CFor test environments
see service data.
Standard FREE 3-5 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £40.00 (exc vat). Sent using express courier, delivered within 3-5 working days from the date of your order, subject to availability.
Standard 1-2 Day Express Courier Delivery – UK Mainland only - Zones A & B
£4.50 for all all orders under £40.00 (exc vat). Sent by express courier, delivered within 1-2 working days from the date of your order, subject to availability.
Express Courier 1-2 Day Delivery – UK Mainland only - Zones A & B
£4.50 select at the checkout. Sent using express courier.
Next Day Delivery – UK Mainland only - Zones A & B
£8.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for next day delivery, subject to availability.
Saturday Pre 12am - UK Mainland only - Zones A & B
£15.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for Saturday delivery.
Orders must be placed before 3pm for next day delivery and a telephone number supplied, subject to availability.
Please note that predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope of our dispatch and therefore may incure additional days lead time to your order.
Orders requiring calibration. Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received late afternoon and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch, this in most cases should not add more than 24 hours to you delivery.
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:
- Zones A & B - Mainland delivery rates apply.
- Zone C - Scottish Highlands.
- Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands.
- Zone E - Northern Ireland
- Zone F - Republic of Ireland
International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at firstname.lastname@example.org
If no shipping option is available to your selected country please call us on +44 (0) 1603 406 148 to purchase your items.