Analog/Digital Megger Insulation Tester; 250, 500 & 1000V.
Analog/Digital Megger Insulation Tester; 250, 500 & 1000V.
The Megger MIT310A has a moving coil display for those who prefer a real moving needle. Black decals on a white background give high contrast, even in poor light conditions.
In addition the range meets the requirements of IEC 61010-1 for safe connection to a 440 V Installation Category III supply (600 V Phase to Earth).
The MIT330 additionally offers the facility to save test results to internal memory. Over 1000 result can be saved on site, and downloaded to a computer when convenient.
Data is stored in non-volatile memory, being retained when the instrument is switched off or batteries are exhausted.
A Job reference number can be selected for a range of results, allowing separate locations to be tested with the same tester and easily separated when downloaded.
A memory bar graph acts as a 'Fuel Gauge' showing how much memory has been used.
Test results are downloaded to CSV (Coma Separated Variable) spreadsheets, and can be imported into Microsoft Excel. If certificates or reports are required, the results can be downloaded directly into Megger Powersuite Professional with a range of features for
creating professionally finished documentation.
Features
Applications
The MIT300 series has applications in all aspects of domestic, commercial and industrial electrical contracting, building maintenance, testing, inspection and servicing.
Combining both Insulation testing and continuity testing, each instrument caters for all aspects of fixed wiring installations.
Further applications can be found in panel building, testing of motors, generators, switchgear and power tools, street lighting and low volume manufacturing environments etc.
| Nominal Insulation Test Voltage | 500 V, 250 V DC |
| Measuring Range | All Instruments, 10 k½ to 999 M½ on all ranges |
| Short Circuit Current | 1.5 mA nominal |
| Test Current on Load | 1 mA at min. pass values of insulation (as specified in BS7671, HD 384 and IEC 364) |
| Accuracy (at 20°C) | ±3%, ±2 digits |
| Continuity Range | 0,01 ½ - 99,9 ½ (0 -50 ½ on analogue scale) |
| Open Circuit Voltage | 5 V ±1 V |
| Short Circuit Current | 200 - 215 mA |
| Terminal Accuracy | ±3% ±2 digits |
| Zero Offset Adjust | 0 - 9 ½ |
| Continuity Buzzer | Operates at <5 ½ Response time <20 ms |
| Voltage Range | 0 to 600 V AC. (50/60 Hz) or DC. |
| Voltage Accuracy | DC or AC (50/60 Hz) ±1%, ±2 digits |
| Temperature Coefficient | <0.1% per °C on all ranges. |
| Default Voltmeter | Beeps and flash ‘V’ on the display (all modes except off) |
| Test Inhibit | If more than 50 volts is detected, testing will be inhibited. |
| Operating Temperature | -10 to 60°C |
| Operating Humidity | 93% R.H. at 40°C max. |
| Storage Temperature | -25 to 70°C |
| Test Result Storage | 1000 results |
| Job Number | 255 locations |
| Distribution Board no. | 99 locations |
| Circuits | 99 locations |
| Phases | P1, P2, P3 |
| Last recorded result may be recalled to the display. All data can be downloaded to a PC using Download Manager (supplied) or Megger Powersuite Professional of Windows software | |
| Communications | USB interface |
| Environmental Protection | IP54 |
| Fuses | Terminals 500 mA (F) 600 V, 32 x 6 mm Ceramic HBC 10 kA minimum. Display shows if fuse is ruptured. |
| Safety | Meets the requirements of IEC61010-1 Cat III 600 V phase to earth. |
| Automatic discharge | After an insulation test the item under test will be discharged automatically. Any voltage present will be indicated on the display so that the discharge can be monitored. |
| Battery | 8 x 1.5 V cells IEC LR6 type (AA alkaline).
Rechargeable NiCd or NiMH cells may be used. Battery condition is constantly shown on the display as a four-section bargraph. |
| Battery Life | 5000 consecutive tests (5 seconds per test) on any test using 2Ah batteries. Weight |
| All Units | 980 gms |
| Dimensions | All units: 203 x 148 x 78 mm (8 x 5.7 x 3.2 inches) |
| E.M.C. | In accordance with IEC61326 including amendment No.1 |
| Nominal Insulation Test Voltage | 500 V, 250 V DC |
| Measuring Range | All Instruments, 10 k½ to 999 M½ on all ranges |
| Short Circuit Current | 1.5 mA nominal |
| Test Current on Load | 1 mA at min. pass values of insulation (as specified in BS7671, HD 384 and IEC 364) |
| Accuracy (at 20°C) | ±3%, ±2 digits |
| Continuity Range | 0,01 ½ - 99,9 ½ (0 -50 ½ on analogue scale) |
| Open Circuit Voltage | 5 V ±1 V |
| Short Circuit Current | 200 - 215 mA |
| Terminal Accuracy | ±3% ±2 digits |
| Zero Offset Adjust | 0 - 9 ½ |
| Continuity Buzzer | Operates at <5 ½ Response time <20 ms |
| Voltage Range | 0 to 600 V AC. (50/60 Hz) or DC. |
| Voltage Accuracy | DC or AC (50/60 Hz) ±1%, ±2 digits |
| Temperature Coefficient | <0.1% per °C on all ranges. |
| Default Voltmeter | Beeps and flash ‘V’ on the display (all modes except off) |
| Test Inhibit | If more than 50 volts is detected, testing will be inhibited. |
| Operating Temperature | -10 to 60°C |
| Operating Humidity | 93% R.H. at 40°C max. |
| Storage Temperature | -25 to 70°C |
| Test Result Storage | 1000 results |
| Job Number | 255 locations |
| Distribution Board no. | 99 locations |
| Circuits | 99 locations |
| Phases | P1, P2, P3 |
| Last recorded result may be recalled to the display. All data can be downloaded to a PC using Download Manager (supplied) or Megger Powersuite Professional of Windows software | |
| Communications | USB interface |
| Environmental Protection | IP54 |
| Fuses | Terminals 500 mA (F) 600 V, 32 x 6 mm Ceramic HBC 10 kA minimum. Display shows if fuse is ruptured. |
| Safety | Meets the requirements of IEC61010-1 Cat III 600 V phase to earth. |
| Automatic discharge | After an insulation test the item under test will be discharged automatically. Any voltage present will be indicated on the display so that the discharge can be monitored. |
| Battery | 8 x 1.5 V cells IEC LR6 type (AA alkaline).
Rechargeable NiCd or NiMH cells may be used. Battery condition is constantly shown on the display as a four-section bargraph. |
| Battery Life | 5000 consecutive tests (5 seconds per test) on any test using 2Ah batteries. Weight |
| All Units | 980 gms |
| Dimensions | All units: 203 x 148 x 78 mm (8 x 5.7 x 3.2 inches) |
| E.M.C. | In accordance with IEC61326 including amendment No.1 |
