MIT480/2 Series Insulation Testers MIT480/2 Series Insulation Testers Insulation testing up to 500 V and 100 G range in a handheld instrument 3-wire connection for A, B and E (Tip, Ring and Ground) connection (NEW) Gated access to 500 V to prevent accidental damage (NEW) Rechargeable options for ac and car charging (NEW) Single range, faster continuity testing from 0.01 W to 1 MW (NEW) Differential measurement capability (NEW) Stabilized insulation test voltage (NEW) 600 V Trms AC and DC voltage measurement Test result storage & Bluetooth downloading CATIV 600V and IP54 DESCRIPTION INSULATION RESISTANCE TESTING: The MIT480/2 series insulation and continuity testers replace The feedback controlled insulation test voltage is now accurate the original MIT480 range and are designed specifically for the to +2% -0% compared to the original +20%, providing a more Telecommunications and Cable testing markets. accurate test voltage without the risk of over-voltage damage to circuits. The new units feature a redesigned case, back-stand, and 6 cell battery compartment with separate fuse access. A variable range allows the exact test voltage to be selected from 10 V up to 500 V. All instruments are over-moulded for increased protection and achieve an IP54 weatherproof rating. FEATURES INCLUDE: THREE TERMINAL CONNECTION (NEW) Test voltages (New) Three terminal measurement permits the connection of all three test - 50 V, 100 V, 250 V, and 500 V. leads for A, B and E (or Tip, Ring and Ground). The measurement Variable test voltage (New) pair is selected from the A-B-E (T-R-G) button on the front panel. - Adjustable test voltage from 10 V to 500 V. (New). Selection is confirmed in the display. No disconnection of 2% test voltage accuracy test leads to measure individual pairs are required. - The output test voltage is maintained within the tolerance Alternatively the units can be used as a conventional Two Terminal or -0% +2% +2 V. instrument.section of this user guide. PASS/FAIL (/) indication (New) THE MIT480/2 RANGE - PASS or FAIL (/) displayed depending on threshold voltage. (FOR TELECOMMUNICATIONS, REFER TO THE Stabilized test voltage MIT480 DATASHEET) - The voltage is feedback controlled to ensure it remains within The range consists of two instruments: specification throughout the full test range. MIT481/2 50 V, 100 V, 250 V, 500 V* + Storage Test voltage display (New) MIT485/2 50 V, 100 V, 250 V, 500 V* + Storage + Download + The actual test voltage is displayed on the smaller digital recharge ready readout, with the measurement on the larger digital display. * Gated access prevents accidental selectionMIT480/2 Series Insulation Testers Test range VOLTAGE MEASUREMENT - Insulation testing up to 100 G * 500 V. True RMS voltage measurement to 600 V ac or dc with resolution from 0.1 mV. Measurement range displayed (New) Digital voltage measurement up to 600 V ac/dc - The test range is displayed during selection. Analog arc measurement to 600 V ac/dc Measurement voltage display Automatic display of frequency during voltage measurement. - The measurement voltage is displayed during the test. Input impedance is 10 M to prevent loading the circuit and Analog arc reporting low voltages. (New) - The display also features an analogue arc to replicate the response of a moving coil display. CURRENT MEASUREMENT Timed testing - 400 mA AC/DC - Automatically test to a time limit. DISPLAY Silicone leads The display offers a combination of analog arc and a dual digital - High quality flexible silicone test leads are comfortable to use readout: and prevent measurement errors on G ranges above 5 G. Analog arc: Test inhibit Full display width analog arc. - Prevents testing if voltages in excess of 25, 30, 50, 75 or 100 Analog arc display shows essential charge and discharge V (set by the user) are detected when making insulation tests. characteristics not visible on a digital display. Default is 50 V. Single pointer needle response is similar to a moving coil meter. Insulation buzzer Setup functions allow control of Buzzer limit alarms, Continuity test - The buzzer can be set to buzz if the insulation resistance is currents, k/M/G. above a user adjustable limit, set in the Setup menu. Dual digital display Test Lock Large main digital readout for good visibility of all main - Holds insulation test on continuously. measurement results * Gated access prevents accidental selection. Second digital display for additional data such as: Insulation test voltage. Test ranges extend from 10 G to 100 G depending on test Insulation leakage current. voltage as below: Supply frequency (when measuring volts). 50 Volts up to 10 G Differential measurement result display 100 Volts up to 20 G 250 Volts up to 50 G OTHER FUNCTIONS AND FEATURES Weatherproof - Every tester is sealed to IP54, providing a 500 Volts up to 100 G weatherproof case to reduce the chances of water ingress, including CONTINUITY (RESISTANCE) TESTING the battery and fuse compartment. Single resistance range (New) Tough housing - Rubber over moulding combines the tough - One range fully automatic from 0.01 to 1.0 M. shock absorbing outer protection with excellent grip, on a strong 200 mA or 20 mA modified ABS housing, providing an almost indestructible case. - Either 200 mA or 20 mA continuity test currents are available. Batteries - Battery requirements are 6 AA batteries of either 20 mA test current will considerably increase battery life. standard Alkaline or Nickel Metal Hydride (NiMH) rechargeable type, Lead null providing a minimum of 3000 insulation tests at 500 V. - Lead resistance compensation (NULL) operates up to 10 s of resistance. VARIABLE INSULATION VOLTAGE TESTER * Buzzer The variable mode provides a unique solution for awkward - ON/OFF selected by simple push button. insulation voltage measurement applications. The range option allows an insulation test voltage from 10 V to 500 V in 1 V steps. Buzzer limit - Continuity buzzer limit alarm provides adjustment of the * Dependent on model maximum resistance the continuity buzzer sounds. This is STORAGE AND DOWNLOADING RESULTS adjustable from 1 to 200 in 12 steps. Revised Bluetooth and pairing procedures have made the Differential measurement (New) MIT480/2s far easier to pair and download data.* The test results - Allows the difference between two consecutive continuity tests are downloaded to a CSV file which can then be opened as an to be measured Excel spreadsheet.* REN (New) * Dependent on model - Displays the appropriate REN value for the circuit under test. Avaliable on 100 V ins or continuity range