MIT300 Series Insulation and Continuity Testers MIT300 Series Insulation and Continuity Testers 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 Continuity and buzzer testing starts automatically on DESCRIPTION connection to the circuit. The Megger MIT300, MIT310 and MIT320 all feature the popular Megger digital/analog display. Large 20mm high Insulation tests being activated from the instrument or characters provide very clear readout, combined with an the switch probe, supplied with MIT320 and MIT330 analog arc for the feel of an analog instrument, with a true (not suitable for the use with the MIT300 or MIT310). analog response. Backlighting: The Megger MIT310A has a moving coil display for those Both the display and the range selected can be read in who prefer a real moving needle. Black decals on a white the dark because the MIT 320/330 has a backlit display background give high contrast, even in poor light and range selection. conditions. Safety features: To protect the user and the tester from Tough: incorrect use the MIT series all have an extensive range of Designed to take the bashing that testers receive on site, features known as the Megger Intelligent Safety System the Megger MIT insulation testers are rubber armoured. including: The rigid display cover folds right out of the way during Safety Interlock prevents unsafe connection of test testing and locks down to protect the display when it is leads finished. Safe contact detectors Even if the MIT is connected to Simple to use: a live circuit whilst on continuity setting the tester will remain safe and not be damaged. No buried functions mean it is obvious how to use the Megger MIT. Live voltage warning alerts the operator when a circuit voltage over 25 V exists. Colour coded ranges help test selection, reducing testing time and help with fault location. Safety lockout Prevents the test from operating when the circuit voltage is >50 V. A user guide in the lid provides all the basic information. Continuity check prevents a continuity test or buzzer test on a live circuit. Hands free use: All the MIT instruments meet or exceed the UK and It hangs comfortably around the neck for hands-free use International Wiring Regulations, including requirements of because the instrument is carefully balanced. BS7671 and VDE 0413 parts 1 and 4, HD 384, IEC 364, NFC15-100, NEN3140, ES59009 and EN 61557.MIT300 Series Insulation and Continuity Testers Terminal Characteristics 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. Accuracy (at 20 C) MIT300, 310, 320,330 3% 2 digits A memory bar graph acts as a Fuel Gauge showing how MIT310A 2.5% of scale length (or 30% of much memory has been used. reading 0.2 to 2 k) Zero Offset Adjust: Test results are downloaded to CSV (Coma Separated MIT300, 310,320, 330 0 - 9 Variable) spreadsheets, and can be imported into MIT310A 0 - 0.5 Microsoft Excel. If certificates or reports are required, the Continuity Buzzer results can be downloaded directly into Megger MIT300, 310 Operates at < 5 Powersuite Professional with a range of features for MIT320, 330 Adjustable 1 to 20 creating professionally finished documentation. MIT310A Operates at < 5 MIT300, 310, 320, 330 Response time <20 ms MIT310A Response time <100 mS APPLICATIONS The MIT300 series has applications in all aspects of Resistance range MIT320/330 domestic, commercial and industrial electrical contracting, (can be used for diode testing) Measuring Range: 10 - 1 M building maintenance, testing, inspection and servicing. Open Circuit Voltage: 5 V Combining both Insulation testing and continuity testing, Short Circuit Current: 1.5 mA each instrument caters for all aspects of fixed wiring Accuracy (at 20 C): 5% 2 digits up to 100 k installations. Measuring Range (MIT310A) 0 - 2k (refer to continuity) Voltage range Further applications can be found in panel building, Measuring Range: 0 - 600 V a.c. (50/60 Hz) or d.c. testing of motors, generators, switchgear and power tools, Accuracy (at 20 C) street lighting and low volume manufacturing MIT300, 310, 320, 330 d.c. or a.c. (50/60 Hz): environments etc. 1%, 2 digits The MIT300 range is supplied with a full 3 year warranty. MIT310A 2.5% of scale length for 50/60Hz Temperature coefficient: <0.1% per C on all ranges. Default voltmeter SPECIFICATIONS All modes except off Insulation ranges MIT310, 320, 330 >25 V a.c. or d.c. is applied display will operate as a voltmeter. Nominal Test Voltage MIT300 Beeps and flash V on the display MIT310, 310A, 320, 330 1000 V, 500 V, 250 V (d.c.) MIT310A All modes including OFF MIT300 500 V, 250 V (d.c.) Test inhibit: Measuring Range If more than 50 volts is detected, testing will be inhibited. All instruments 10 k - 999 M on all ranges Short Circuit Current 1.5 mA nominal AutoPower Down (MIT310, 320, 330) Test Current on Load 1 mA at min. pass values of Auto power down operates after 10 minutes if left in standby insulation (as specified in BS7671, mode. HD 384 and IEC 364) Temperature and humidity Accuracy (at 20 C) Operating Range: 14F to 140F (-10C to +60C) MIT300, 310, 320, 330 3%, 2 digits up to 10 M, Operating Humidity: 93% R.H. at +40C max. 5% up to 100 M, 30% up to Storage Range: -13F to +158F (-25C to +70C) full scale MIT310A <2.5% of scale length (or 30% of Test Result Storage (1000 results) reading 200 k to 10 M) Job Number 255 locations Distribution Board no. 99 locations Continuity ranges Circuits 99 locations Measuring Range: 0.01 - 99.9 (0 -50 on Phases P1, P2, P3 analog scale) Last recorded result may be recalled to the display. Open Circuit Voltage: 5 V 1 V All data can be downloaded to a PC using Download Manager Short Circuit Current: (supplied) or Megger Powersuite Professional of Windows MIT300, 310, 320, 330 205 mA +10 mA 5 mA software MIT310A 200 - 250 mA