Description
Details
The AEMC 6503 (2126.52) Hand-Cranked Megohmmeter is a compact, self-contained, hand-cranked True Megohmmeter. This practical and dependable instrument is designed for a broad range of plant and field service applications, such as acceptance testing and preventive maintenance of wiring, cables, switchgear and motors. The easy hand-cranked operation provides a steady, DC voltage output across the entire range for consistently reliable readings. The Model 6503 has three test voltages for insulation resistance testing: 250V, 500V and 1000V. Test voltages are generated in full across the entire measurement range.
Specifications
| AC Voltage Measurement | |
| Range | 0 to 600VAC |
| Accuracy | ±3% of Scale |
| Frequency Range | 45 to 450Hz |
| Input Impedance | 100kΩ (approx) |
| Insulation Measurement | |
| Test Voltage / Resistance Range | 250V: 1 to 11MΩ; 11 to 500MΩ 500V: 1 to 11MΩ; 11 to 500MΩ 1000V: 10 to 110MΩ; 110 to 5000MΩ |
| Measurement Accuracy | 2.5% of Scale Length |
| Short Circuit Current | 5mA (max) |
| Auto Discharge | 8s/µF |
| Features | |
| Power Supply | Hand-cranked, test voltage reached at approx 140rpm |
| Dimensions | 4.7 x 4.4 x 5.3” (120 x 111 x 135mm) with lid |
| Weight | 2.5 lb (1.1kg) |
| Operating Temperature | 14° to +113°F (-10° to +45°C); 75% RH |
| Storage Temperature | -4° to +176°F (-20° to +80°C); 90% |
| IP Rating | IP 54 with lid; IP 52 without lid |
| Safety Compliance | EN 61010-1, 600V CAT II, 300V CAT III, Pollution Degree 2![]() |
Product Features
- Test voltage of 250V, 500V, and 1000V
- Insulation measurements to 5000MΩ
- LED indicates constant voltage output and proper cranked speed
- Automatic discharge when measurement is finished
- Auto-ranging with dual scale operation for better sensitivity and easier readings
- Compact self-contained package with folded crank
- Large direct reading scale
- EN 61010-1, 600V CAT II, 300V CAT III







