The Megohmmeter Model 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. Compact self-contained package; folded crank. Large direct reading scale. Acceptance testing and preventive maintenance. Test motors, cables, switchgears and electrical wiring installations. Continuity checks. Check domestic and industrial wiring. Insulation tests: test voltage (250V, 500V, 1000V): 1 to 11 Mohm; 11 to 500 Mohm, 1 to 11 Mohm; 11 to 500 Mohm, 10 to 110 Mohm; 110 to 5000 Mohm; Short circuit current: 5mA (max); accuracy: 2.5 percent of scale length; automatic discharge: 8 s/micro F; charging time (250V, 500V, 1000V): 0.2 s/, 0.5 s/, 0.5 s/. Resistance tests discharging time (auto): 8 s/. Voltage tests/safety check: voltage range: 0 to 600Vac, frequency: 45 to 450Hz, accuracy: 3 percent of full scale length. Black case, lid painted safety-yellow, with heavy duty gray polycarbonate front panel; O-ring sealed against water and dust; folding crank. Degree of protection: IP54 with cover and IP52 without (IEC 60529 Ed. 92). Domaine of reference: 23 degree C +/- 3 degree C. Terminals: guard + line (red); – earth (black); accepts standard 4mm banana plugs. EN 61010-1, 300V CAT III; 600V CAT II, Pollution Degree 2. Double Insulation. CE Mark; EN 61326-1: 2006. Measures with lid 4-89/128 width by 5-19/64 height by 4-51/128 depth. True Megohmmeter; includes test leads, clips, test probe (in detachable soft carrying case) and user manual, the case attaches to the carrying strap Test voltages of 250V, 500V and 1000V LED indicates constant voltage output and proper cranked speed Automatic discharge when measurement is finished Auto-ranging - dual scale operation for better sensitivity and easier readings UPC 685338150216 Color Black Model 6503 Brand Name AEMC Style Name Standard Unit Count 1.0 Count Item Weight 4.5 Pounds Manufacturer AEMC Power Source Manual Winding Item Dimensions 11.1 x 6.9 x 6.5 inches Measurement Type Megohmeter Specification Met En 61010-1, En 61326-1: 2006, Ce Included Components 6503 Minimum Operating Voltage 250 Volts Global Trade Identification Number 00685338150216