The AEMC 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 AEMC 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.

Applications:

• Test insulation on cables, transformers, motors, generators, insulators and wiring installations
• High resistance or absorption tests
• Spot reading tests
• Timed resistance measurements
• Dielectric Absorption Ratio (DAR) and Polarization Index (PI) tests
• Multi-layer insulation testing (DD)
• Test old or water damaged installations over long time runs
• Motor insulation resistance measurements
• Computer controlled production line testing
• Predictive maintenance by storing results in PC for trend analysis
• User selectable voltage testing to provide application specific testing

Features / Specs:

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 < 7s/µF from Vtest to 25V @ 5000V
Live Circuit Indicator	Test inhibition if terminal voltage > 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
Battery Life	≥ 1500  tests at 5000V into 5MΩ with a duty cycle of 5 seconds on and 25 seconds off
Charging Time	6 hours approximately (charging allowed during tests)
Dimensions	10.63 x 9.84 x 7.09” (270 x 250 x 180mm)
Weight	9.5 lbs (4.3kg)
Altitude Operating	6562′ (2000m)
Operating Temperature	14° to +131°F (-10° to +55°C) ≤80% RH
Storage Temperature	-40° to +158°F (-40° to +70°C) ≤90% RH
IP Rating	IP 53
Safety Compliance	EN 61010-1, EN 61557, 1000V CAT III, Pollution Degree 2

Documentation:

Equipment Specifications