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| Model | Fluke 1550C | Megger MIT525 |
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| Product | Fluke 1550C Megohmmeter/Insulation Resistance Tester, 5kV, > 2 teraohm | Insulation Tester 5kV IRT, IR, IR(t), DAR, PI, DD, SV, Ramp, USB, Battery and Line... |
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| Rating | (2) | (3) |
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| Price | | |
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| In Stock | | |
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Micro / Milli / Meg Ohmmeters/Megohmmeter / Insulation Resistance Testers |
| IR Test Voltage | 1,000 V, 2,500 V, 250 V, 5,000 V, 500 V | 1,000 V, 2,500 V, 250 V, 5,000 V, 500 V IR Test Voltage 10 V steps 50 V to 1 kV
25 V steps 1 kV to max. test voltage |
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| Maximum Insulation Resistance | 2 G Ohms | 10 T Ohms (10000 G Ohms) |
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| Automated Test Results | Dielectric Absorption Ratio, Other Automated Test Results Polarization Index (PI)
Ramp function for breakdown testing
Timer settings up to 99 minutes for timed tests | Dielectric Absorption Ratio, Dielectric Discharge, Other, Step Voltage Automated Test Results
Preconfigured diagnostic tests include Polarization Index (PI), Dielectric Absorption Ratio (DAR), dielectric discharge (DD), Step Voltage (SV) and ramp test. |
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| Type | Battery | Battery, Line Type Operate from line power when battery fully discharged (charges while operating).
Two and one-half hour full battery charge time (one-half hour charge for one hour testing) significantly increases productivity.
Up to six hours continuous testing (5 kV) on a single battery charge. |
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| Minimum Insulation Resistance | 200 K Ohms (0.0002 G Ohms) | 100 K Ohms (0.0001 G Ohms) |
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| Variable Incremental Voltage | Yes Variable Incremental Voltage Selectable test voltages in 50 V steps from 250 V to 1000 V, and 100 V steps above 1000 V | Yes Variable Incremental Voltage 10 V steps 50 V to 1 kV
25 V steps 1 kV to max. test voltage |
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| Display (Megohmmeter) | Digital | Digital Display (Megohmmeter) Digital display, with a responsive analog pointer emulation for evaluating circuit charge and discharge. |
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| Continuity Test | No | No |
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| Live Circuit Voltage Detection | Yes | Yes Live Circuit Voltage Detection Dedicated voltmeter function (30 V to 660 V) with frequency measurement allows the user to check for induced voltages |
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| Power Supply | Battery | Battery, Line Powered |
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| Timer | Yes | Yes |
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| CAT Rating | IV | IV |
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| CAT Voltage | 1,000 V, 600 V CAT Voltage CAT III 1000 V, CAT IV 600 V | 600 V |
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Test Equipment General Attributes |
| Unique Features | Measurements can be stored in up to 99 memory locations, with each location assigned a unique, user defined, label for easy recall. Long battery life gives the user over 750 tests between charges. Ramp function for breakdown testing. | Rotary switch operation for easy, intuitive field use.
Field replaceable battery.
Smaller size and lighter weight allows easier transport and use without compromising performance.
High measurement range enables installation testing and long-term trending of higher value apparatus.
Unique dual case design allows for fire-retardant
protection while maintaining ruggedness.
High-quality, flexible silicon test leads meet safety
regulations of IEC 61010-31:2008 while ensuring
measurement accuracy
3 mA short circuit current with unique max power
regulations technology ensures maximum transfer
whatever the load until selected voltage is reached.
Interference Rejection
1 mA per 250 V up to a maximum of 3 mA
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| Warranty | 3 YEARS | 2 YEARS Warranty Warranty - Extended warranty over 1 year is conditional on registering the product with Megger within 3 months of purchase. |
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| Warranty Details | | New instruments are covered by a two year warranty from the date of purchase by the user, the second year being conditional on registration of the product on
www.megger.com
.
Any unauthorized prior repair or adjustment will automatically invalidate the warranty. |
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| Safety Approval | CSA | CE |
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| Interfaces I/O | IR, USB | USB |
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| IP Rating | IP40 | IP40, IP65 IP Rating IP65 (lid closed); IP40 (lid open) |
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| Product Weight | 8.2 LBS | 10 LBS |
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| Product Height | 6.3 IN | 12.50 IN |
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| Product Length | 10.6 IN | 17.25 IN |
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| Product Width | 10.9 IN | 14.00 IN |
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| Data Logging | Yes | Yes |
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| HTS/Schedule B Number | | 9030390000 |
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| ECCN Number | | 3A992 |
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| Calibration Included | None | Factory Calibration |
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| Battery Type | Other Battery Type 12 V lead-acid rechargeable battery | Li-ion |
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| Power Supply Voltage | 120V/220V Universal, Battery Powered | 120V/220V Universal |
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| Country of Origin | United States | United Kingdom |
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| Other Information | Display: 75 mm x 105 mm Power: 12 V lead-acid rechargeable battery, Yuasa NP2.8-12 Charger Input (AC): 85 V ac 50/60 Hz 20 VA | |