MIT400 CAT IV Industrial Insulation Testers MIT400 CAT IV Industrial Insulation Testers n CAT IV 600 V applications n TRMS & DC Voltage measurement n Insulation testing up to 1000 V and 200 G n Continuity testing at 200 mA or 20 mA down to 0.01 n Pass/Fail limit alarms n Combined Analogue and dual digital display n PI/DAR and Timer function n Test result storage (MIT420) n Bluetooth wireless data transfer (MIT430) n Analogue arc - The display also features an analogue arc DESCRIPTION to replicate the response of a moving coil display. The new Megger MIT400 series insulation and continuity n testers has been designed for electrical testing by the PI and DAR - Polarisation Index (PI) and Dielectric utilities, industrial, commercial and domestic electricians. Absorption Ratio (DAR) functions The wide range of features also makes the MIT400 series n 200 G - Insulation testing from 20 G (MIT400) to ideal for the maintenance and service/repair engineer. 200 G (MIT420 and MIT430). Safety rated to CAT IV 600 V the MIT400 series of testers are n Silicone leads - High quality flexible silicone test leads suitable for use in high energy systems, up to the substation are comfortable to use and prevent measurement errors transformer, while lower test voltages can be used in data on higher G ranges. and telecommunication systems. n Test inhibit - prevents testing if voltages in excess of 50 V are detected when making insulation tests. The range The range consists of five instruments: n Insulation buzzer - The buzzer can be set to buzz if the insulation resistance is above a preset limit, set via the MIT400 250 V, 500 V and 1000 V Setup menu. MIT410 50 V, 100 V, 250 V, 500 V and 1000 V + PI, DAR Continuity testing MIT415 10 V, 25 V, 50 V,100 V, 250 V and 500 V + PI, DAR n Auto-test - Auto test on circuit contact enables real two MIT420 50 V, 100 V, 250 V, 500 V & 1000 V + PI, DAR and handed operation without the need to press the test result storage button. n 200 mA or 20 mA - Either 200 mA or 20 mA continuity MIT430 50 V, 100 V, 250 V, 500 V & 1000 V + Bluetooth test currents are available. 20 mA test current will download considerably increase battery life. MIT40X 10 V to 100 V in 1 V steps n Lead null - Lead resistance compensation (NULL) Insulation testing operates up to 9.99 of resistance. n Test voltages - 10 V to 1000 V n Buzzer - ON-OFF selected by simple push button. insulation test voltages available n Buzzer limit - Continuity buzzer limit alarm provides n Test Lock - Locks insulation test on continuously. adjustment of the maximum resistance the continuity n buzzer sounds. This is adjustable from 1 to 20 in 5 Test voltage display - The actual test voltage is displayed on the smaller digital readout, with the insulation result steps. on the larger digital display. n k range extends resistance measurement to 1 M .MIT400 Series Industrial Insulation Testers connected to live circuits or across phases. Specifically, all Display instruments: The display offers a combination of analogue arc and a dual digital readout: n Meet the international requirements of IEC1010-2 and EN61557. Analogue arc: n Live circuit detection inhibits insulation testing on circuits n Full display width analogue arc. above 50 V. n Patented arc display shows essential charge and discharge n Live circuit detection and test inhibit on continuity characteristics not visible on a digital display. measurements. n Single pointer needle response is similar to a moving n Default display of live circuit voltage on all ranges. coil meter. n Detection and inhibit functions even if the protection fuse n Logarithmic display for better low insulation value has failed. measurements. n Suitable for use on CAT IV applications and supply voltages to 600 V. Dual digital display: n Large main digital readout for good visibility of all main 600 V CAT IV measurement results All MIT400 instruments are designed to meet the safety n Second digital display for additional data such as: requirements for use on CAT IV 600 V installations. Insulation test voltage. Insulation leakage current. APPLICATIONS Supply frequency (when measuring volts). Electrical installations testing: Test mode eg. PI, DAR or TI (Timed mode). The MIT400 includes all the features required for electricians and engineers working in a range of industries. MIT40X - Variable insulation voltage tester Available features are selected to make testing easy and fast The MIT40X provides a unique solution for awkward in a range of situations. Typical industries include: insulation voltage measurement applications. The MIT40X Electrical supply companies has a variable insulation test voltage from 10 V to 100 V in Large and small scale electrical installation 1 V steps, selectable in the Set-Up menu. Once selected Periodic inspection and testing this can only be changed by re-configuring in the Setup Cable testing menu. Service, repair and maintenance: Typical applications include: n Commercial avionics The MIT410 and MIT420 add additional features required for engineers working on more demanding applications. n Military land, marine and air communications Functions such as PI and DAR, capacitance measurement n Manufacturing/production line goods and higher insulation range increase the suitability for n Electrostatic measurement applications such as: n Component testing Manufacturing/production testing n Battery powered traction and lifting equipment Panel building Railway and other transportation Storage & Downloading results Motor testing MIT420 Cable inspection/quality control The MIT420 is capable of saving test results for recall to the Street lighting maintenance screen. A simple storage structure allows for a test number Avionics ground testing and maintenance and screen results to be recalled individually. Military applications MIT430 The MIT415 also includes 25 and 50 V ranges for testing The MIT430 supports both test result storage and down- communication circuits for signalling controls : loading. Elevator service engineers Test results can be stored in the instrument and sub- Street lights (Pedestrian controls) sequently downloaded to a computer with the Megger Machines and saftey interlock/commisioning service download manager software. HVAC controls Data transfer is by Bluetooth, with the MIT430 Bluetooth Robotic Power and Control transmitter being enabled when the Download mode is Electrostatic discharge testing: selected on the instrument. The 10 V and 100 V insulation test voltage ranges are ideal NOTE: The receiving PC needs to have Bluetooth capability for ESD testing, including servicing of equipment and rou- or a USB port fitted a Bluetooth receiver. Class II (10m) is tine maintenance of ESD conductive flooring, bench mats acceptable. and grounding systems etc. Typical industries include: Electronic manufacturing Safety Electronic servicing and repair Designed to be exceptionally safe to use, fast detecting Calibration houses circuitry prevents damage to the instruments if accidentally