MEGGER MTR105 ROTATING MACHINE TESTER

The MTR105 is a dedicated static motor tester with Megger’s proven and reliable Insulation Resistance (IR) tester, plus all the traditional features and reliability of a Megger tester. The MTR105 utilizes the testing capabilities of Megger’s proven infrared testers by adding DLRO four-wire Kelvin low resistance, inductance, and capacitance testing to provide a versatile motor tester. , all wrapped up in a rugged handset, something that has not been available so far.

In addition, the MTR105 incorporates temperature measurement and compensation (for infrared testing), motor rotation direction, and power phase rotation testing. These new test capabilities make the MTR105 a versatile, portable, real-world engine test tool. The MTR105 features a prefabricated outer shell, enhancing protection and ruggedness, achieving an IP54 weatherproof rating.

MTR-105 megger motor tester

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MEGGER MTR 105 ROTATING MACHINE TESTER SPECIFICATIONS

All quoted accuracies are at 20 °C (68 °F).

Insulation resistance

• Volts Accuracy :

• 50 V 10 GΩ ±2% ±2 digits ±4.0% per GΩ
• 100 V 20 GΩ ±2% ±2 digits ±2.0% per GΩ
• 250 V 50 GΩ ±2% ±2 digits ±0.8% per GΩ
• 500 V 100 GΩ ±2% ±2 digits ±0.4% per GΩ
• 1000 V 200 GΩ ±2% ±2 digits ±0.2% per GΩ

• Polarization index (PI): 10 min / 1-minute ratio
• Dielectric absorption ratio (DAR): User configurable 15 s or 30 s t1 start time with t2 fixed at 60 s
• Guard terminal performance <5% error at 500 kΩ parallel circuit resistance with 100 MΩ load
• Resolution: 0.1 kΩ
• Short circuit/charge current: 2 mA +0% -50% (IEC61557-2)
• Terminal voltage accuracy : -0% +2% ±2 V
• Test current: 1 mA at min. pass the value of insulation to a max. of 2 mA