AEMC JM861 (2110.90) Oscilloscopes & BNC Terminated Probes

The Model JM861 is designed for oscilloscopes, waveform displaying instruments and other instruments able to benefit from its frequency response. The Model JM861 encompasses a special circuit and three ranges to maximize frequency response performance. Accurately measures AC current waveforms and has proportional mV output for direct readings on oscilloscopes. Three-position slide switch on the handle selects ranges. Large jaw window enables use on cables and bus bars.

• Nominal range: 30A, 300A, 3000A
• Output: 10mA/AAC, 1mV/AAC, 0.1mA/AAC
• Oscilloscope current probe for applications in industrial and power environments
• Analyze, measure and accurately display distorted current waveforms and harmonics
• Current range from 1 to 2400Arms
• Large jaw window for use on cables and bus bars
• Direct BNC connection to scope

•  Electrical utility
• HVAC
• Industrial maintenance
• Laboratory
• Plant maintenance
• Power quality

• Nominal Range : 30A, 300A, 3000A
• Measurement Range : 90A, 900A, 9000A Peak
• Transformation Ratio : Voltage output
• Output Signal  : 10mVAC/AAC (0.3V @ 30A)
•                            : 1mVAC/AAC (0.3V @ 300A)
•                            : 0.1mVAC/AAC (0.3V @ 3000A)
• Accuracy (30A Range):
• 1.5A   : 2% of Reading ± 1mV
• 6A      : 2% of Reading ± 1mV
• 30A    : 2% of Reading ± 1mV
• Phase Shift (30A Range):
• 1.5A    : 20°
• 6A       : 10°
• 30A     :  5°
• Accuracy (300A Range):
• 15A     : 2% of Reading ± 0.5mV
• 60A     : 2% of Reading ± 0.5mV
• 300A   : 2% of Reading ± 0.5mV
• Phase Shift (300 A Range):
• 15A      : 3°
• 60A      : 1.5°
• 300A    : 1°
• Accuracy (3000A Range):
• 150A    : 2% of Reading ± 0.2mV
• 600A    : 2% of Reading ± 0.2mV
• 3000A   : 2% of Reading ± 0.2mV
• Phase Shift (3000A Range):
• 150A   : 3°
• 600A   : 1.5°
• 3000A : 1°
• Overload –
• Frequency Range : 10 to 50kHz; current derating above 5kHz for continuous use
• Load Impedance : 1MΩ, 47pF
• Working/Common
• Mode Voltage       : 600VAC
• Output Termination : 6.5 ft coaxial cable

• AEMC JM861 Data Sheet.pdf