The Megohmmeter Model 6550 is a high-end portable measuring instrument intended for the measurement of a wide varity of electrical insulation resistance values on cables and devices operating at high voltage. It is the only fully automated 10,000V graphical insulation tester. The Model 6550 is packaged in a rugged case that is IP54 when closed. Test results and configuration information is provided on a graphical LCD screen as well as exportable through the use of DataView® software provided. This megohmmeter can operate on battery or AC power while testing.
The Model 6550 also offers the ability to program up to three step voltage profiles (from 40 to 10,000), each containing up to ten steps. There are also ramp profiles and three programmable test voltages in addition to the standard fixed voltages of 500, 1000, 2500, 5000 and 10,000V.
Specifications
AC/DC Voltage Measurement
Range - 1 to 4000V
Accuracy - 1 to 99.9V: ±(1% R + 5ct)
100 to 4000V: ±(1% R + 1ct)
Resolution - 1 to 99.9V: 0.1V
100 to 999V: 1V
1000 to 4000V: 2V
Frequency Range - 1 to 2500V: DC or 15 to 500Hz
2501 to 4000V: DC
Input Impedance - 3MΩ
Insulation Measurement
Test Voltage / Resistance Range - 500V: 10kΩ to 2TΩ
1000V: 10kΩ to 4TΩ
2500V: 10kΩ to 10TΩ
5000V: 10kΩ to 15TΩ
10,000V: 10kΩ to 25TΩ
Measurement Accuracy - 10kΩ to 39.99GΩ: ±(5% R + 3ct)
40.0GΩ to 10.00TΩ: ±(15% R + 10ct)
400GΩ to 3.999TΩ: ±(15% R + 10ct) @ 500 and 1000V only
4.00 to 10.00TΩ: ±(20% R + 10ct) @ 2500V
4.00 to 15.00TΩ: ±(20% R + 10ct) @ 5000V
4.00 to 25.00TΩ: ±(20% R + 10ct) @ 10000V
Variable Voltage - 40 to 10,000V
Auto Discharge - Discharge time < 27s/µF from Vtest to 25V @ 10,000V