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Analog/Digital Megger Insulation Tester; 250, 500 & 1000V.
Analog/Digital Megger Insulation Tester; 250, 500 & 1000V.
The Megger MIT320-EN 250/500/1000 V Insulation and Continuity Tester with Voltmeter Function has a backlit display and range selection.
The complete range of the MIT Series provides indication of insulation resistance up to 999Mohms, 200mA continuity testing, and a fast-reacting continuity buzzer.
MEGGER INSULATION TESTERS COMBINE SAFETY WITH DURABILITY
Developed, after extensive customer research, specifically to meet the needs of today's electrical contractors, the new MIT300 range of insulation and continuity testers from Megger is not only durable and easy to use, but also incorporates a comprehensive set of Features: designed to ensure operator safety, even under conditions of accidental misuse.
The range includes four models, ensuring an exact match for the needs of every user, all of which offer automatic discharge of the circuit after testing, audible and visual warning if the test probes are applied to a live circuit, and a test inhibit feature which operates automatically under live circuit conditions. The units also conform fully to IEC 61010-1 for use in Category III 600V applications, and provide all of the facilities needed to meet insulation testing requirements relating to the current edition of the IEE Wiring Regulations.
In line with other products in Megger's comprehensive new contractor range, MIT300 insulation testers feature rugged construction, with an impact-resistant rubber-overmoulded case, and innovative circuitry which guarantees high accuracy combined with stability of calibration.
All instruments in the new range provide indication of insulation resistance up to 999Mohms, 200mA continuity testing, a fast-reacting continuity buzzer, and facilities for nulling the resistance of the test leads. The entry-level MIT300 offers insulation test voltages of 250V and 500V, while the remaining models allow testing at 250V, 500V and 1,000V.
In addition to the basic Features:, the mid-range MIT310 adds a default voltmeter function, while the MIT320 supplements these facilities with an a backlit display, illuminated range panel, insulation limit alarm, resistance measurement, and an adjustable threshold for the continuity buzzer. The MEGIT320 is also supplied with a switched test probe to speed hands free testing.
An illuminated switched test probe is available as an optional extra for use with the MIT320. The MIT310, and MIT320 testers incorporate dual solid-state displays which simultaneously show the test results numerically, and in the form of a moving-arc bar graph that accurately simulates the operation of an analogue meter.
For users who prefer a true analogue device, however, Megger is offering the MIT310A which has Features: similar to those of the MIT310, but with a conventional moving-coil meter movement in place of the digital display.
Features:
| 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 |
