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Megger MFT1731-BS Installation Tester
Includes: MFT 1731, SP5 Switched probe, full user guide on CD, soft carry case, Calibration certificate, Neck strap - Megger embroidered, 3 Wire lead set with prods and clips, Mains plug test lead, batteries and calibration cert.
Shipped as standard in a large soft carrying case, the Megger MFT1731 builds on the capabilities of the MFT1721 by adding support for three-pole ART earth resistance measurements, with a clamp option, and stakeless twin-clamp earth resistance measurements. This model also has internal storage for test results with wireless downloading to smartphones, tablets and other Bluetooth-equipped devices.
All of the multifunction installation testers in Megger’s new range incorporate the qualities that have made the previous MFT1700-series instruments so popular and successful. These include a straightforward user interface for fast easy operation, robust construction to withstand the knocks and tumbles of everyday use, comprehensive electrical protection, and an extensive range of safety features, including a CAT IV 300 V/CAT III 600 V safety rating in line with IEC 61010.
FEATURES
Three–phase installation tester.
2 and 3-wire non-trip loop impedance testing.
Fast 2-wire high current loop test including phase to phase testing ability.
ZMAX facility.
Full range of RCD tests from 10 mA to 1000 mA.
Selective, variable type B and 3-phase RCD (no neutral) testing.
Auto RCD and ramp.
Insulation testing at 1 kV, 500 V, 250 V and 100 V.
Continuity and low Ωs at 200 and 15 mA.
Adjustable buzzer threshold.
True RMS voltage measurement and phase rotation.
Supplied in a large soft carry case.
Megger MFT1731 Specifications
| Insulation Tests | ||
| Output Voltage | -0 to +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 V | 10 kΩ to 999 MΩ (±3% ± 2 digits). | |
| 500 V | 10 kΩ to 500 MΩ (±3% ± 2 digits). | |
| >500 MΩ (±10% ± 4 digits). | ||
| 250 V | 10 kΩ to 250 Ω (±3% ± 2 digits). | |
| >250 MΩ (±10% ± 4 digits). | ||
| 100 V | 10 kΩ to 100 MΩ (±3% ± 2 digits). | |
| >100 MΩ (±10% ± 4 digits). | ||
| Resistance and Continuity | ||
| Range and Accuracy | 0.01 to 99.9 Ω (±2% ± 2 digits). | |
| 100 to 99.9 kΩ (±5% ± 2 digits). | ||
| Open Circuit Voltage | 5 V ± 1 V. | |
| Test Current (0 to 2 Ω) | 205 mA ±5 mA. | |
| 15 mA ±5 mA (user selectable). | ||
| Loop Test | ||
| Live to Earth/Neutral Supply | 48 to 280 V (45 to 65 Hz). | |
| L-N/L-L Tests | ±5% ±5 digits. | |
| L-E Tests | 0.1 to 39.9 Ω (±5% ±5 digits ± noise margin). | |
| 40 Ω to 1000 Ω (±10% ± 5 digits). | ||
| Display Range | 0.01 to 1000 Ω. | |
| Live to Earth PFC Range | 20 kA. | |
| Live to Live PSCC Range | 20 kA. | |
| RCD Tests | ||
| Supply up to 100 mA | 48 to 480 V (45 to 65 Hz). | |
| Supply up to 1 A | 48V to 280 V. | |
| RCD Type | Type AC, A and S. | |
| Type B (Pure DC). | ||
| No-Trip Test (1/2xI) | -10 to -0%. | |
| Trip Test (1xI, 2xI and 5xI) | +0 to +10%. | |
| Ramp Test Touch Voltage (0 to 253 V) | ±5% +15% ±0.5 V. | |
| Trip Time | ±1% ±1 ms. | |
| Trip Current | ±5%. | |
| Step Increments | ||
| VAR (Variable RCD Selection) | ||
| 10 mA to 50 mA | 1 mA steps. | |
| 50 mA to 500 mA | 5 mA steps. | |
| 500 mA to 1000 mA | 10 mA steps. | |
| Supply Measurement | ||
| Voltage | 10 V to 600 V (15 to 400 Hz) True RMS. | |
| Voltage Accuracy | ±3% ±1 V ±2 digits. | |
| Phase Rotation Indication | L1-L2-L3 and L1-L3-L2. | |
| Frequency | 15 Hz to 99 Hz (±0.5% ±1 digit). | |
| Frequency Resolution | 0.1 Hz. | |
| Power Supply | ||
| Batteries | 1.2V NiMH Rechargeable Batteries Mains charger for on-board recharging (4 hours typical) 12V optional car charger available. |
|
| Earth/Ground Test | ||
| Resolution | 0.01 Ω. | |
| Current | 0.45 mA or 4.5 mA. | |
| Noise Rejection | 20 V pk/pk (7V rms). | |
| Max Probe Resistance (Rp and RC) | 100 kΩ @ 50 V. | |
| 5 kΩ at 25 V. | ||
| 2 and 3 Pole Method | 0.01 to 1.999 kΩ (±2.0% ± 3 digits). | |
| ART method (1.00Ω to 1.999 kΩ) with accuracy of ±5.0% ± 3 digits. | ||
| Stakeless Method | 1.00 to 199 Ω (±7.0% ± 3 digits). | |
| Current (Via Optional Clamp Meter) | ||
| Range | 0.1 mA to 200 A AC (5.0% ± 3 digits). | |
| Resolution | 0.1 mA. | |
| Safety | ||
| Conformity | EC 61010-1: 2010 IEC 61010-30: 2010 IEC 61010-031: 2008 600V CAT III / CAT IV 300V (Max phase to phase 600V) IEC 61557: 2007 parts 1 to 10. |
|
| EMC | IEC61326 edition 2 location class B. | |
| Operating Temperature Range and Humidity | -10 to +55°C (90% RH at +40°C max). | |
| Storage Temperature Range and Humidity | -25 to +70°C. | |
| Maximum Altitude | 2000m. | |
| Weight (Instrument and Case) | 1 kg (with batteries). | |
| Dimensions (Instrument and Case) | 150 x 85 x 235 mm (H x W x D). | |
| IP Rating | IP54. | |
| Calibration Temperature | +20°C. | |
| Temperature Coefficient | <0.1% per °C. | |
| Megger MFT1731 warranty | 1 year extendable to 3 years. | |
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| COMPONENT PARTS | DESCRIPTION | PART No. | ||
| Software | PowerSuite Lite. | 1000-631 | ||
| Lead set |
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 | ||
| SP5 | Switched Probe (silicone). | 1001-687 | ||
| ICLAMP | Current measuring clamp. | 1001-012 | ||
| VCLAMP | Voltage inducing clamp, calibration check pcb
(for stakeless test) and lead.
|
1001-013 | ||
| Pouch | Test and carry pouch. | 1006-408 | ||
| Soft pouch | Large soft pouch with extra storage. | 1007-463 | ||
| Strap | Neck strap - Megger embroidered. | 2001-509 | ||
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Includes: MFT 1731, SP5 Switched probe, full user guide on CD, soft carry case, Calibration certificate, Neck strap - Megger embroidered, 3 Wire lead set with prods and clips, Mains plug test lead, batteries and calibration cert.
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