The Yokogawa 701927 Differential Probe acquires high-voltage differential signals across DC to 150 MHz with a maximum differential voltage of ±1400 V (DC + ACpeak) at 500:1 attenuation. Built for power electronics, motor drives, inverters, and power supply measurement, this probe delivers low noise, exceptional common-mode rejection, and automatic recognition on compatible Yokogawa oscilloscopes. Its compact design—50% smaller than predecessor models—and stackable form factor optimize laboratory space without compromising measurement fidelity.
Technical Specifications
Electrical Performance
• Bandwidth: DC to 150 MHz (-3 dB); 100 MHz (-3 dB) with 1-meter extension lead
• Attenuation Ratio: Selectable 50:1 or 500:1
• Maximum Differential Voltage: ±1400 V (DC + ACpeak) at 500:1 attenuation; ±140 V at 50:1 attenuation
• Maximum Common Mode Voltage: ±1400 V (DC + ACpeak) or 1000 Vrms CAT II
• Input Impedance: ~4 MΩ
• Output Voltage: ±2.8 V into 1 MΩ oscilloscope input
• Common Mode Rejection Ratio: -80 dB at 60 Hz; -50 dB at 1 MHz
• Input-Referred Noise: 50 mVrms (50:1 attenuation); 300 mVrms (500:1 attenuation)
• Propagation Delay: 13 ns (50:1 attenuation); 12 ns (500:1 attenuation)
• DC Gain Accuracy: ±2% at ±400 V common mode; ±3% at ±1000 V common mode
• Offset Voltage: User-adjustable
Power and Interface
• Probe Power: Supplied via dedicated Yokogawa probe interface with automatic power and recognition on compatible instruments
Physical
• Dimensions: 174 mm × 58 mm × 27 mm
• Total Length: ~2.4 m
• Weight: ~500 grams
• Stackable design; 50% reduced volume versus 700924 model
– Key Features
• Dual attenuation ratio selection reduces measurement error and adapts to signal magnitude
• Switchable gain achieves ±1400 V measurement capability while maintaining noise floor below 50 mVrms at 50:1
• Integral probe connector eliminates external power cables
• Automatic attenuation detection on DLM2000/3000/4000/5000, DL6000/6000, DL9000, SB5000 series
• 1-meter extension lead pair and standard pincher tips included
– Typical Applications
• Power electronics circuit characterization
• Motor drive and inverter testing
• High-voltage power supply analysis
• Mechatronic system measurement
– Compatibility & Integration
Fully compatible with Yokogawa DLM2000, DLM3000, DLM4000, DLM5000, DL6000, DLM6000, DL9000, and SB5000 series oscilloscopes supporting probe interfaces.
