MIT415 Insulation Tester MIT415 Insulation Tester n 10 V and 100 V ESD testing n 25 V & 50 V signal cable insulation testing n n The new Megger MIT415 insulation and continuity tester has been designed for electrical testing by utilities, industrial, commercial and domestic electricians. The wide range of test voltages makes the MIT415 series ideal for the engineer or technician involved with combined applications of both communications circuits and power circuits such as would be found in elevator service/repair and routine maintenance. The low test voltage insulation ranges also makes the MIT415 ideal for ESD testing. The MIT415 replaces the well-established BMM2000ESD insulation tester, gives greater functionality with simplified operation, greater application range and an ergonomically designed case. INSULATION TESTING DC and TRMS AC voltage measurement n Large backlit display Weatherproof to IP54 n Supplied with AA alkaline cells on higher G ranges. n n n n n n n Test Lock - Locks insulation test on continuous. n n n n n Analogue arc - The display also features an analogue arc to replicate the response of a moving coil display. PI and DAR - Polarisation Index (PI) and Dielectric Absorption Ratio (DAR) functions 50 G - Insulation testing from 1 G to 50 G Silicone leads - High quality flexible silicone test leads are comfortable to use and prevent measurement errors Test inhibit - prevents testing if system voltages in excess of 50 V are detected when making insulation tests. Insulation buzzer - The buzzer can operate if the insulation resistance is above a preset limit, set via the Setup menu. CONTINUITY TESTING Test voltages - 10 V, 25 V, 50 V, 100 V, 250 V and 500 V Test voltage display - The actual test voltage is displayed on the smaller digital readout, with the insulation result on the larger digital display. Combined analogue and dual digital readout n n n Continuity testing at 200 mA or 20 mA from 0.01 to 999 k n n DESCRIPTION 250 V & 500 V Insulation testing up to 50 G (500 V) n Auto-test - Auto test on circuit contact enables real two handed operation without the need to press the test button. 200 mA or 20 mA - Either 200 mA or 20 mA continuity test currents are available. 20 mA test current will considerably increase battery life. Lead null - Lead resistance compensation (NULL) operates up to 10 of resistance. Buzzer - ON-OFF selected by simple push button. Buzzer limit - Continuity buzzer limit alarm provides adjustment of the maximum resistance at which the continuity buzzer sounds. This is adjustable from 1 to 20 in 5 steps. Resistance - k range extends continuity measurement to 1 M. MIT415 IInsulation Tester DISPLAY 600 V CAT IV The display offers a combination of analogue arc and a dual digital readout: All MIT415 instruments are designed to meet the safety requirements for use on CAT IV 600 V. Analogue arc: n n n n Full display width analogue arc. Patented arc display shows essential charge and discharge characteristics not visible on a digital numeric only display. Single pointer "needle" response is similar to a moving coil meter. Logarithmic display for better low insulation value measurements. Dual digital display: n n Large main digital readout for good visibility of all main measurement results Second digital display for additional data such as: Insulation test voltage. Insulation leakage current. Test mode eg. PI, DAR or TI (Timed mode). Street lighting (pedestrian controls) T o u g h h o u s i n g - Rubber over moulding combines the tough shock absorbing outer protection with excellent grip, on a strong modified ABS housing, providing an almost indestructible case. B a t t e r i e s - Battery requirements are 5 AA batteries of either standard Alkaline or Nickel Metal Hydride (NiMH) rechargeable type, providing a minimum of 2200 insulation tests at 500V. SAFETY Designed to be exceptionally safe to use, fast detecting circuitry prevents damage to the instruments if accidentally connected to live circuits or across phases. Specifically, all instruments: n n n n (B) Combined power and communications applications: Typically power circuits are tested at 250V or 500V, whereas communications circuits for signalling are tested at lower voltages such as 25V or 50V. Both systems can be tested with the MIT415. Typical applications would include: Elevator service engineers W e a t h p r o o f - Every tester is sealed to IP54, providing a weatherproof case to reduce the chances of water ingress, including the battery and fuse compartment. n (A) Electrical installations testing: The MIT415 includes all the features required for electricians and engineers working in a range of industries. Available features are selected to make testing easy and fast in a range of situations. Typical industries include: Electrical supply companies Large and small scale electrical installation Periodic inspection and testing Cable testing Supply frequency (when measuring volts). OTHER FEATURES n APPLICATIONS Meet the international requirements of IEC1010-2 and EN61557. Live circuit detection inhibits insulation testing on circuits above 50 V. Live circuit detection and test inhibit on continuity measurements. Default display of live circuit voltage on all ranges. Detection and inhibit functions even if the protection fuse has failed. Suitable for use on CAT IV applications and supply voltages (of up to) 600 V to ground. Machinery and safety interlock commissioning/ service Heating, ventilation and air conditioning systems Robotic power and controls (C) Electrostatic Discharge testing The 10V and 100V insulation test voltage ranges are ideal for ESD testing, including servicing of equipment and routine maintenance of ESD conductive flooring, bench mats and grounding systems etc. Typical industries include: Electronic manufacturing Electronic servicing and repair Calibration houses MIT415 Insulation Tester Insulation range SPECIFICATION 10 V Maximum reading = >1.00 G All quoted accuracies are at +20C. 25 V Maximum reading = >2.00 G 50 V Maximum reading = >5.00 G Insulation Nominal test voltages MIT415 10 V, 25 V, 50 V, 100 V, 250 V, 500 V 100 V Maximum reading = >10.0 G 250 V Maximum reading = >20 G 500 V Maximum reading = >50 G Leakage current display 3 INS test voltage display 3 Continuity 200 mA (0.01 to 99.9 ) 3 Variable Current Limit. 200 mA / 20 mA 3 Fast buzzer- Selectable threshold 3 K range to 999 K 3 Voltage TRMS & DC Measurement to 600 V 3 Default voltmeter on other ranges 3 Measurement ranges 3 Frequency Hz- 15 to 450 Hz 3 Safety Insulation resistance range (see note 1) 10 V 1 G 25 V 2 G 50 V 5 G 100 V 10 G 250 V 20 G 500 V 50 G Range Full Scale Accuracy All ranges 2% 2 digits up to 100 M. Then: 500 V 250 V 100 V 50 V 25 V 10 V 3% 3% 3% 3% 3% 3% Analogue range: 1 G full scale Resolution: 0.01 M 2 digits 0.4% per G 2 digits 0.8% per G 2 digits 2.0% per G 2 digits 4.0% per G 2 digits 2.0% per 100 M 2 digits 2.0% per 100 M Short circuit current: 2 mA +0% -50% Open circuit terminal voltage: -0% + 20% 1 V Test current on load: 1 mA at min. pass value of insulation specified in BS7671, HD384 and IEC364, 2 mA max. EN61557 Operating range: 0,10 M to 1,00 G Leakage current range 10 A 2000 A Live circuit warning at 25 V 3 Testing inhibit at 50 V 3 Leakage current: 10% 3 digits IEC61010 compliant 3 Voltage display: Installation Category IV 600 V to ground 3 3% 3 digits 0.5% of rated voltage Polarisation Index (PI): 10 min / 1 minute ratio Features 3 Dielectric Absorption Ratio (DAR): 60 sec / 30 sec ratio Backlight 3 Timer: Battery condition display Insulation Timed - PI - DAR Tests 3 Notes: (1) All ranges measure from 0,00 M upwards. Test button plus lock button 3 Auto power down 3 (2) Above specifications only apply when high quality silicone leads are being used. Remote switch probe (SP5) 3 Calibration certificate with product 3 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 minute countdown in seconds Continuity Measurement: Accuracy: Open circuit voltage: Test current: 0,01 to 99,9 (0 to 100 on analogue scale) 2% 2 digits (0 to 100 ) 5V1V 200 mA (1 mA) (0.01 to 9.99 ) 20 mA (1 mA ) (10.0 to 99.9 ) Zero offset at probe tips: 0,10 typical MIT415 Insulation Tester Lead resistance zeroing: Up to 9.00 Buzzer: Variable limit 1 , 2 , 5 , 10 , 20 Resistance Measurement: Accuracy: Open circuit voltage: Short circuit current: Dimensions Instrument: 0.01 k to 1000 k (0 to 1 M on analogue scale) 3% 2 digits 5 V 1 V 20 A 5 A Voltage range 0 to 600 V d.c. 2% 2 digits 10 mV to 600 V TRMS sinusoidal (40 to 400 Hz) 2% 1 digit 0 to 1000 V on analogue scale Unspecified input level 0 - 10 mV (40 to 400 Hz) For non-sinusoidal waveforms additional specification apply: 3% 2 digits 101 mV to 600 V TRMS and 8% 2 digits 10 mV to 100 mV TRMS Default Voltmeter: Operates at >25 V a.c. or d.c. on any range except OFF Frequency: 40-450 Hz (40 Hz - 99.9 Hz) 0.5% 1 digit (100 Hz to 450 Hz) Power Supply: 5 x 1,5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline NiMH rechargeable cells may be used. Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55 sec OFF @ 1000 V into 1 M 220 x 92 x 50 mm (8.66 in. x 3.63 in. x 1.97 in.) Instrument + case: 456 x 178 x 89 mm (18 in. x 7 in. x 3.5 in.) Weight Instrument only: 590 gms, 775 gms with boot (20.73 oz. 27.22 oz.) Instrument plus case: 1.75kg (3.86 lb) Fuse Use only a 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of high breaking capacity HBC 50 kA minimum. Glass fuses MUST NOT be fitted. Safety Protection The instruments meet IEC 61010-1 to 600 V phase to earth, Category IV. Refer to safety warnings supplied. E.M.C. In accordance with IEC 61326-1 Temperature effects Temperature coefficient: <0,1% per C up to 1 G <0,1% per C above 1 G Environmental Operating range: -10 to +55 C Operating humidity: 90% RH at 40 C max. Storage temperature range: -25 C to +70 C Calibration Temperature: +20 C Maximum altitude: 2000 m Dust and water protection: IP54 Protected against dust and splashing water ORDERING INFORMATION Order No. Item (Qty) MIT415-EN Insulation and continuity tester Included accessories Red/Black silicone test leads with probes and clips SP5 remote switch probe Rubber boot with stand Owners information CD Batteries Hard carry case UK Archcliffe Road Dover CT17 9EN England T +44 (0) 1304 502101 F +44 (0) 1304 207342 UKsales@megger.com UNITED STATES 4271 Bronze Way Dallas TX 75237-1088 USA T 800 723 2861 (USA only) T +1 214 333 3201 F +1 214 331 7399 USsales@megger.com Order No. Item (Qty) Optional accessories Replacement lead set SP5 remote switch probe Rubber boot with stand Hard case OTHER TECHNICAL SALES OFFICES Norristown USA, Sydney AUSTRALIA, Toronto CANADA, Trappes FRANCE, Kingdom of BAHRAIN, Mumbai INDIA, Johannesburg SOUTH AFRICA and Conjure THAILAND. 6220-813 6220-812 6231-802 5410-420 Registered to ISO 9001:2000 Cert. no. Q 09290 Registered to ISO 14001-1996 Cert. no. EMS 61597 MIT415_DS_en_V01 www.megger.com Megger is a registered trademark