The AEMC Instruments 5050 is a digital/analogue insulation tester with large dual display in rugged dual wall weatherproof field case. It includes automatic calculation and presentation of the dielectric absorption ratio (DAR), polarization index (PI) and dielectric discharge (DD).
Features:
Specifications:
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Features:
- True megohmmeter with adjustable and programmable test voltage (40 to 5100V)
- Automatic calculation and presentation of DAR, PI and DD
- Large dual display for easy viewing
- Rugged weatherproof field case
- Built-in safety features
- 4KB memory for storing test data
- Programmable test run times and PI ratio times
- Smooth and alarm functions
- Automatic test inhibition if live sample is greater than 25V
Specifications:
| AC/DC Voltage Measurement | |
| Range | (1 to 4000) V |
| Accuracy | (1 to 99.9) V: ±(1 % R + 5ct) (100 to 4000) V: ±(1 % R + 3ct) |
| Resolution | (1 to 99.9) V: 0.1 V (100 to 999) V: 1 V (1000 to 4000) V: 2 V |
| Frequency Range | (1 to 2500) V: DC or (15 to 500) Hz (2501 to 4000) V: DC |
| Input Impedance | 750 kΩ or 3M Ω (range dependent) |
| Insulation Measurement | |
| Test Voltage / Resistance Range | 500 V: 10 kΩ to 2 TΩ (2000 GΩ) 1000 V: 10 kΩ to 4 TΩ (4000 GΩ) 2500 V: 10 kΩ to 10 TΩ (10,000 GΩ) 5000 V: 10 kΩ to 10 TΩ (10,000 GΩ) |
| Measurement Accuracy | 30 kΩ to 39.99 GΩ: ±(5 % R + 3ct) 40.0 GΩ 10 TΩ: ±(15 % R + 10ct) |
| Variable Voltage | (50 to 5000) V : 10 kΩ to 160 GΩ to 10 TΩ |
| Auto Discharge | Discharge time < 7 s/µF from Vtest to 25 V @ 5000 V |
| Live Circuit Indicator | Test inhibition if terminal voltage > (3, 10, 20) % (selectable by user) of test voltage |
| Key Features | |
| Programmable Alarm | Yes |
| DAR – PI – DD | Yes |
| Ramp Mode | No |
| Step Mode | No |
| Capacitance Measurement | (0.005 to 49.99) µf |
| Leakage Current Measurement | (0 to 3) mA |
| Open Circuit Voltage | ≤ 1.1 x Vn ±2 V (Vn ± 2% in variable mode) |
| Memory | 4 kB Memory / Stores 20 test results |
| Power Supply | Rechargeable NIMH battery pack; external (85 to 256) V, 50/60Hz |
| Battery Life | ≥ 1500  tests at 5000 V into 5 MΩ with a duty cycle of 5 seconds on and 25 seconds off |
| Charging Time | 6 h approximately (charging allowed during tests) |
| Dimensions | (10.63 x 9.84 x 7.09) in (270 x 250 x 180) mm |
| Weight | 9.5 lbs (4.3 kg) |
| Altitude Operating | 6562 ft (2000 m) |
| Operating Temperature | (14 to +131) °F (-10 to +55°C) °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, 1000 V CAT III, Pollution Degree 2 |
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