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Megger MIT300-EN
Catalog #: MIT300-EN
Analog/Digital Megger Insulation Tester 250V and 500V
- Overview
- Specifications
- Summary
- Accessories
Product highlights
- 250 And 500 V
- Extremely easy to use
- Tough rubber armoured case
- Self contained protective cover
- Live circuit warning
- Weatherproof to IP54
- Intelligent Safety System for protection.
- Result storage and downloading
- Download software included
- USB interface
Each Unit Includes
- Test lead set and crocodile clips
- SP4F Switch probe
- Calibration Certificate
| Insulation ranges |
| Nominal Test Voltage |
500 V, 250 V (d.c.) |
| Measuring Range |
| All instruments |
10 k½ - 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 ranges |
| Measuring 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 Characteristics |
| |
| Accuracy (at 20° C) |
±3% ±2 digits |
| Zero Offset Adjust |
0 - 9 ½ |
| Continuity Buzzer |
Operates at < 5 ½
Response time <20 ms |
| Voltage range |
| Measuring Range |
0 - 600 V a.c. (50/60 Hz) or d.c. |
| Accuracy (at 20° C) |
d.c. or a.c. (50/60 Hz) ±1%, ±2 digits |
| Temperature coefficient |
<0,1% per °C on all ranges. |
| Default voltmeter |
| (all modes except off) |
Beeps and flash ‘V’ on the display |
| Test inhibit |
If more than 50 volts is detected, testing will be inhibited. |
| Temperature and humidity |
| Operating Range |
-10°C to +60°C |
| Operating Humidity |
93% R.H. at +40°C max.: |
| Storage Range |
-25°C 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. |
| Power supply |
| 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 |
| Micro / Milli / Meg Ohmmeters/Megohmmeter / Insulation Resistance Testers Template |
| Type |
Battery |
| IR Test Voltage |
250 V, 500 V |
| Maximum Insulation Resistance |
999 M Ohms (0.999 G Ohms) |
| Minimum Insulation Resistance |
0 Ohms (0 G Ohms) |
| Variable Incremental Voltage |
No |
| Display (Megohmmeter) |
Digital |
| Continuity Test |
Yes |
| Live Circuit Voltage Detection |
No |
| Power Supply |
Battery |
| Timer |
No |
| CAT Rating |
III |
| CAT Voltage |
600 V |
| Unique Features |
Auto Power Off.
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.
Test inhibit:
If more than 50 volts is detected,
testing will be inhibited. |
| Warranty |
3 YEARS |
| Calibration Included |
Factory Calibration |
| Power Supply Voltage |
Battery Powered |
| Data Logging |
No |
| IP Rating |
IP54 |
| Product Weight |
2.5 LBS |
| Battery Type |
AA |
| Product Height |
3.2 IN |
| Product Length |
8 IN |
| Product Width |
5.7 IN |
| Shipping Weight |
4 LBS |
| ECCN Number |
EAR99 |
| Country of Origin |
United Kingdom |
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