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Analog/DigitalInsulation Tester - Premium/Telecom: 50/100/250/500/1000V + 600V Cat IV+ Result Storage/Recall.
Analog/DigitalInsulation Tester - Premium/Telecom: 50/100/250/500/1000V + 600V Cat IV+ Result Storage/Recall.
Discontinued!
This product has been discontinued and is no longer available.
This is the direct replacement:
The Megger MIT400 Series insulation and continuity testers has been designed for electrical testing by power utilities,
industrials, telecommunication companies, commercial/domestic electricians and anyone with unique test voltage requirements. The wide range of features also makes the MIT400 Series ideal for maintenance technicians and engineers.
They replace the well-established BM400 insulation tester range, giving greater functionality with simplified operation, greater application range and increased safety.
MIT481 - 50 V, 100 V, 250 V, 500 V, 1000 V plus PI, DAR and result storage.
Telecommunication Testing
Designed to cope with the additional requirements of the
telecommunications industry, MIT Models 480, 481 and
485
include 50 V and 100 V range insulation testing as standard,
plus higher voltages as required.
In addition, the voltage detection test inhibit feature has been
raised to 75 V (from 50 V), to allow testing of cables with
coactivity coupled induced voltages, which would normally
inhibit such testing with a 50 V protected instrument.
Finally the MIT481 and MIT485 models include measurement
of cable distance by capacitance, providing a convenient
cable length without the need to use TDR technology, with
adjustable cable capacitance from 40 nF/Km to 60 nF/Km
(default is 50 nF/Km).
The MIT400 Series instruments are designed to meet all of the requirements of IEC1010-2 and EN61557 and meets the safety requirements for use on CAT IV 600 V.
Also, fast detection circuitry prevents damage to the instruments if accidentally connected to live circuits or across phases.
| Insulation Nominal Test Voltages | 50 V, 100 V |
| Insulation Resistance Range | 100 GΩ |
| Range Full Scale Accuracy | 100 volts ±3%,
±2 digits |
| Analog Range | 1 GΩ full scale |
| Short Circuit Current | 2 mA +0% -50% |
| Terminal Voltage | -0% +20% ±1 V |
| Test Current on Load | 1 mA at min. pass value of insulation specified in BS7671, HD384and IEC364, 2 mA max. |
| EN61557 Operating Range | 0.10 M½ to 1.00 GΩ |
| Leakage Current | 10% ±3 digits |
| Voltage Display | 3% ±3 digits ±0.5% of rated voltage |
| Polarization Index (PI) | 10 min/1 minute ratio |
| Dielectric Absorption Ratio (DAR) | 60 sec/30 sec ratio |
| Notes | (1) All ranges measure from 0.00 M½ upwards.
(2) Above specifications only apply when high quality silicone leads are being used. |
| Continuity | |
| Measurement | 0.01 ½ to 99.9 ½ (0 to 100 ½ on analog scale) |
| Accuracy | ±3% ±2 digits (0 to 100 Ω) |
| Open Circuit Voltage | 5 V ±1 V |
| Test Current | 200 mA (–0 mA +20 mA)
(0.01 ½ to 9.99 Ω)
20mA (±1 mA ) (10.0 ½ to 99.9 Ω) |
| Zero Offset at Probe Tips | 0.10Ω typical |
| Lead Resistance Zeroing | Up to 9.00 Ω |
| Buzzer | Variable limit 1Ω, 2Ω, 5Ω,10Ω, 20Ω |
| Resistance | |
| Measurement | 0.01 kΩ to 1000 kΩ (0 to 1 MΩ on analog scale) |
| Accuracy | ±3%, ±2 digits
Open circuit voltage 5 V ±1 V Short circuit current 20 µA ± 5 µA |
| Voltage Range | 0 to 600V DC, ±2% ±2 digits,
10mV to 600V TRMS sinusoidal (40 to 400 Hz) ±2% ±2 digits, 0 to 1000 V on Analog scale Unspecified input level 0 to 10 mV (40 to 400 Hz) For non-sinusoidal waveforms additional specification apply: ±3% ±2 digits 101 mV to 600 V TRMS and ±8% ±2 digits 10 mV to 100 mV TRMS |
| Default Voltmeter | Operates at >25 V a.c. or d.c. on any range except OFF |
| Frequency | 40 - 450 Hz (40 Hz - 99.9 Hz) ±0.5% ±1 digit (100 Hz to450 Hz) |
| Result storage | |
| Capacity | >1000 test results |
| Download | Bluetooth wireless |
| Bluetooth Class | Class II |
| Range | up to 10 m |
| Power | |
| Power Supply | 5 x 1.5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline NiMH rechargeable cells may be used. Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55 sec OFF @ 1000 V into 1 MΩ |
| Dimensions | |
| Instrument | 220 x 92 x 50 mm (8.66 in. x 3.63 in. x 1.97 in.) |
| Instrument and Case | 456 x 178 x 89 mm (18 in. x 7 in. x 3.5 in.) |
| Weight | |
| Instrument Only | 590 gms (20.73 oz.), 775 gms (27.22 oz.) with boot |
| Instrument and Case | 1.75kg (3.86 lb) |
| Fuse | Use only a 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of highbreaking capacity HBC 50 kA minimum. Glass fuses MUST NOT be fitted. |
| Safety Protection | The instruments meet EN 61010-1 (1995) to 600 V phase to earth, Category IV. Refer to safety warnings supplied. |
| E.M.C. | In accordance with IEC 61326 including amendment No.1 |
| Temperature Effects | |
| Temperature Coefficient | <0.1&Omega per °C up to 1 G&Omega |
| Environmental | |
| Operating Range | -10 to +55° C |
| Operating Humidity | 90% RH at 40° C max. |
| Storage Temperature Range | -25 to +70° C |
| Calibration Temperature | +20° C |
| Maximum Altitude | 2000 m |
| Dust and Water Protection | IP54 Protected against dust and splashing water |
| *All quoted accuracies are at +20° C. | |
| Industrial and Power Applications | Telecommunications Applications | Special | ||||||
|---|---|---|---|---|---|---|---|---|
| Insulation Voltage range | MIT400MIT410 | MIT420 | MIT430 | MIT480 | MIT481 | MIT485 | MIT40X | |
| 10-100 V variable (2 GΩ - 20 GΩ) | ||||||||
| 50 V | ||||||||
| 100 V | ||||||||
| 250 V | ||||||||
| 500 V | ||||||||
| 1000 V | ||||||||
| Insulation range | 20 GΩ | 100 GΩ | 200 GΩ | 200 GΩ | 100 GΩ | 200 GΩ | 200 GΩ | 2-20 GΩ |
| Leakage current display | ||||||||
| INS test voltage display | ||||||||
| Continuity Measurement | ||||||||
| 0.01 to 100 Ω | ||||||||
| Variable current limit. 200 mA/20 mA | ||||||||
| Fast buzzer- selectable threshold | ||||||||
| k Ω range to 999 k Ω | ||||||||
| Other functions and features | ||||||||
| Live circuit warning at 50 V | ||||||||
| Live circuit warning at 75 V | ||||||||
| Default voltmeter | ||||||||
| TRMS measurement to 600 V | ||||||||
| Frequency Hz - 40 to 400 Hz | ||||||||
| Capacitance (0.1 nf to 10 µF) | ||||||||
| mV/transducer (0.1 to 19.99 V) | ||||||||
| Backlight | ||||||||
| Battery condition display | ||||||||
| Insulation Timed - PI - DAR Tests | ||||||||
| Test button plus lock button | ||||||||
| Limit alarm pass band on INS | ||||||||
| Auto power down | ||||||||
| Result storage | ||||||||
| Bluetooth downloading | ||||||||
| Included Accessories | ||||||||
| Red/black silicone lead set with clips | ||||||||
| Protective rubber boot with built-in stand | ||||||||
| Remote switch probe | ||||||||
| Calibration certificate with product | ||||||||
| Batteries | ||||||||
| 3 Year Warranty | ||||||||
| Insulation Nominal Test Voltages | 50 V, 100 V |
| Insulation Resistance Range | 100 GΩ |
| Range Full Scale Accuracy | 100 volts ±3%,
±2 digits |
| Analog Range | 1 GΩ full scale |
| Short Circuit Current | 2 mA +0% -50% |
| Terminal Voltage | -0% +20% ±1 V |
| Test Current on Load | 1 mA at min. pass value of insulation specified in BS7671, HD384and IEC364, 2 mA max. |
| EN61557 Operating Range | 0.10 M½ to 1.00 GΩ |
| Leakage Current | 10% ±3 digits |
| Voltage Display | 3% ±3 digits ±0.5% of rated voltage |
| Polarization Index (PI) | 10 min/1 minute ratio |
| Dielectric Absorption Ratio (DAR) | 60 sec/30 sec ratio |
| Notes | (1) All ranges measure from 0.00 M½ upwards.
(2) Above specifications only apply when high quality silicone leads are being used. |
| Continuity | |
| Measurement | 0.01 ½ to 99.9 ½ (0 to 100 ½ on analog scale) |
| Accuracy | ±3% ±2 digits (0 to 100 Ω) |
| Open Circuit Voltage | 5 V ±1 V |
| Test Current | 200 mA (–0 mA +20 mA)
(0.01 ½ to 9.99 Ω)
20mA (±1 mA ) (10.0 ½ to 99.9 Ω) |
| Zero Offset at Probe Tips | 0.10Ω typical |
| Lead Resistance Zeroing | Up to 9.00 Ω |
| Buzzer | Variable limit 1Ω, 2Ω, 5Ω,10Ω, 20Ω |
| Resistance | |
| Measurement | 0.01 kΩ to 1000 kΩ (0 to 1 MΩ on analog scale) |
| Accuracy | ±3%, ±2 digits
Open circuit voltage 5 V ±1 V Short circuit current 20 µA ± 5 µA |
| Voltage Range | 0 to 600V DC, ±2% ±2 digits,
10mV to 600V TRMS sinusoidal (40 to 400 Hz) ±2% ±2 digits, 0 to 1000 V on Analog scale Unspecified input level 0 to 10 mV (40 to 400 Hz) For non-sinusoidal waveforms additional specification apply: ±3% ±2 digits 101 mV to 600 V TRMS and ±8% ±2 digits 10 mV to 100 mV TRMS |
| Default Voltmeter | Operates at >25 V a.c. or d.c. on any range except OFF |
| Frequency | 40 - 450 Hz (40 Hz - 99.9 Hz) ±0.5% ±1 digit (100 Hz to450 Hz) |
| Result storage | |
| Capacity | >1000 test results |
| Download | Bluetooth wireless |
| Bluetooth Class | Class II |
| Range | up to 10 m |
| Power | |
| Power Supply | 5 x 1.5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline NiMH rechargeable cells may be used. Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55 sec OFF @ 1000 V into 1 MΩ |
| Dimensions | |
| Instrument | 220 x 92 x 50 mm (8.66 in. x 3.63 in. x 1.97 in.) |
| Instrument and Case | 456 x 178 x 89 mm (18 in. x 7 in. x 3.5 in.) |
| Weight | |
| Instrument Only | 590 gms (20.73 oz.), 775 gms (27.22 oz.) with boot |
| Instrument and Case | 1.75kg (3.86 lb) |
| Fuse | Use only a 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of highbreaking capacity HBC 50 kA minimum. Glass fuses MUST NOT be fitted. |
| Safety Protection | The instruments meet EN 61010-1 (1995) to 600 V phase to earth, Category IV. Refer to safety warnings supplied. |
| E.M.C. | In accordance with IEC 61326 including amendment No.1 |
| Temperature Effects | |
| Temperature Coefficient | <0.1&Omega per °C up to 1 G&Omega |
| Environmental | |
| Operating Range | -10 to +55° C |
| Operating Humidity | 90% RH at 40° C max. |
| Storage Temperature Range | -25 to +70° C |
| Calibration Temperature | +20° C |
| Maximum Altitude | 2000 m |
| Dust and Water Protection | IP54 Protected against dust and splashing water |
| *All quoted accuracies are at +20° C. | |
| Industrial and Power Applications | Telecommunications Applications | Special | ||||||
|---|---|---|---|---|---|---|---|---|
| Insulation Voltage range | MIT400MIT410 | MIT420 | MIT430 | MIT480 | MIT481 | MIT485 | MIT40X | |
| 10-100 V variable (2 GΩ - 20 GΩ) | ||||||||
| 50 V | ||||||||
| 100 V | ||||||||
| 250 V | ||||||||
| 500 V | ||||||||
| 1000 V | ||||||||
| Insulation range | 20 GΩ | 100 GΩ | 200 GΩ | 200 GΩ | 100 GΩ | 200 GΩ | 200 GΩ | 2-20 GΩ |
| Leakage current display | ||||||||
| INS test voltage display | ||||||||
| Continuity Measurement | ||||||||
| 0.01 to 100 Ω | ||||||||
| Variable current limit. 200 mA/20 mA | ||||||||
| Fast buzzer- selectable threshold | ||||||||
| k Ω range to 999 k Ω | ||||||||
| Other functions and features | ||||||||
| Live circuit warning at 50 V | ||||||||
| Live circuit warning at 75 V | ||||||||
| Default voltmeter | ||||||||
| TRMS measurement to 600 V | ||||||||
| Frequency Hz - 40 to 400 Hz | ||||||||
| Capacitance (0.1 nf to 10 µF) | ||||||||
| mV/transducer (0.1 to 19.99 V) | ||||||||
| Backlight | ||||||||
| Battery condition display | ||||||||
| Insulation Timed - PI - DAR Tests | ||||||||
| Test button plus lock button | ||||||||
| Limit alarm pass band on INS | ||||||||
| Auto power down | ||||||||
| Result storage | ||||||||
| Bluetooth downloading | ||||||||
| Included Accessories | ||||||||
| Red/black silicone lead set with clips | ||||||||
| Protective rubber boot with built-in stand | ||||||||
| Remote switch probe | ||||||||
| Calibration certificate with product | ||||||||
| Batteries | ||||||||
| 3 Year Warranty | ||||||||
