The Digital/Analog Megohmmeter Model 5050 is the latest design in 5000V insulation testers. Features include automatic calculation and presentation of the Dielectric Absorption Ratio (DAR), Polarization Index (PI) and Dielectric Discharge (DD). The Model 5050 displays the test voltage, insulation resistance ad the leakage current during the test. Capacitance of the sample and discharge voltage present at the test leads is displayed at the conclusion of the test. This meter is designed with the highest level of built-in safety features. The Model 5050 can be operated from an internal rechargeable battery system or from an AC line power.
Specifications
AC/DC Voltage Measurement
Range - 1 to 4000V
Accuracy - 1 to 99.9V: ±(1% R + 5ct)
100 to 4000V: ±(1% R + 3ct)
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 - 750kΩ or 3MΩ (range dependent)
Insulation Measurement
Test Voltage / Resistance Range - 500V: 30kΩ to 2TΩ
1000V: 100kΩ to 4TΩ
2500V: 100kΩ to 10TΩ
5000V: 300kΩ to 10TΩ
Measurement Accuracy - 30kΩ to 39.99GΩ: ±(5% R + 3ct)
40.0GΩ 10TΩ: ±(15% R + 10ct)
Variable Voltage - 40 to 5,100V
Auto Discharge - Discharge time 3, 10, 20% (selectable by user) of test voltage
General Features
Programmable Alarm - Yes
DAR – PI – DD - Yes
Ramp Mode - No
Step Mode - No
Capacitance Measurement - 0.005 to 49.99µf
Leakage Current Measurement - 0 to 3mA
Open Circuit Voltage - ≤ 1.1 x Vn ±2V (Vn ±2% in variable mode)
Memory - 4kB Memory / Stores 20 test results
Power Supply - Rechargeable NIMH battery pack;
external 85-256V, 50/60Hz