The Yokogawa 701933 is a clamp-type current probe delivering DC to 50 MHz bandwidth for AC and DC current measurements up to 30 ARMS. It connects directly to 1 MΩ BNC inputs on Yokogawa DL series instruments without requiring an external amplifier, drawing power from the host instrument or an optional external supply. The probe accommodates conductors up to Ø20 mm and includes a demagnetizing switch and zero adjust dial for precision work.
Technical Specifications
• Bandwidth: DC to 50 MHz (-3 dB typical)
• Maximum Continuous Input Range: 30 ARMS
• Rise Time: 7 ns or less
• Output Voltage Rate: 0.1 V/A
• Amplitude Accuracy: ±1% of reading ±5 mV (0 to 500 ARMS); ±2% of reading (DC and 45 to 66 Hz to 700 A peak)
• Noise: 25 mARMS or less (20 MHz bandwidth measurement instrument)
• Temperature Coefficient: ±2% or less (0 to 40°C, 50 Hz, 500 ARMS)
• Maximum Rated Power: 7.2 VA
• Rated Supply Voltage: ±12 V ±0.5 V
• Input Impedance: 1 MΩ minimum (50 Ω operation not supported)
• Measured Conductor Diameter: Maximum Ø20 mm
– Key Features
• Non-invasive clamp design eliminates circuit interruption
• BNC connectors with integrated power plug
• Sensor cable: approximately 2 m; power supply cable: approximately 1 m
• Sensor dimensions: 176 (W) × 69 (H) × 27 (D) mm
• Terminator dimensions: 27 (W) × 55 (H) × 18 (D) mm
• Weight: approximately 520 g
• Operating temperature: 0 to 40°C, 80% RH or less (no condensation)
• Maximum permitted circuit voltage: 600 V CAT2
• External magnetic field immunity: 800 mA equivalent (DC or 60 Hz, 400 A/m)
– Typical Applications
Power electronics, automotive systems, and industrial environments including inverter currents, switching power supply inrush currents, and motor load currents.
– Compatibility & Integration
Direct integration with Yokogawa DL series oscilloscopes via 1 MΩ BNC inputs. Optional external power supply: Yokogawa 701934.
