701978 Differential Probe 1500 V / 150 MHz
The 701978 Differential Probe delivers high-voltage differential measurement up to 1.5 kV with 150 MHz bandwidth for accurate, floating signal capture in power electronics and other high-energy applications
This probe works universally with any oscilloscope featuring standard probe interfaces and requires a compatible probe power supply (Yokogawa 701934) for operation.
The 701978 is well suited for inverter and PV evaluation, EV/HEV battery testing, and 400 Vrms commercial power line measurements.
What is a High Voltage Differential Probe?
The 701978 High Voltage Differential Probe is for a wide range of floating signal measurement with oscilloscopes in the power electronics and mechatronics fields.
//Comparison Table for High Voltage Differential Probes
Specifications
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 701978 |
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| Bandwidth | DC to 400 MHz | DC to 150 MHz | DC to 150 MHz | DC to 50 MHz | |||
| Attenuation ratio | 50:1 / 500:1 | 100:1 / 1000:1 | 50:1 / 500:1 | 100:1 / 1000:1 | 50:1 / 500:1 | 100:1 / 1000:1 | |
| DC gain accuracy | ±0.7% | ±2 to ±3% | |||||
| Differential voltage | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1400 V (DC + ACpeak) | ±1500 V (DC + ACpeak) | ±7000 V (DC + ACpeak) 5000 Vrms |
| Maximum input voltage | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1400 V (DC + ACpeak) or 1000 Vrms |
±1500 V (DC + ACpeak) | ±7000 V (DC + ACpeak) or 5000 Vrms |
| CMRR (typical) | 80 dB (60 Hz) 50 dB (10 MHz) 30 dB (100 MHz) 20 dB (400 MHz) |
80 dB (60 Hz) 50 dB (1 MHz) |
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| Noise (typical) | 250 mVrms | 500 mVrms | 250 mVrms | 500 mVrms | 300 mVrms | 700 mVrms | |
| Impedance (typical) | 6 MΩ | 5 pF (to ground) 12 MΩ | 2.5 pF (between +/- terminals) |
4 MΩ | 5 pF (to ground) | 4.1 MΩ | 5 pF (to ground) | 52 MΩ | 10 pF (to ground) | |||
| Measurement category | CAT II 1000 V CAT III 600 V |
CAT II 1000 V | CAT III 1000 V | CAT III 1000 V CAT O 5000 Vrms |
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| Interface | Yokogawa DLM Series | BNC | Yokogawa DLM Series | BNC | |||
Brochures
- 701977, 701978 High Voltage Differential Probe (396.6 KB)
- Probes and accessories for Oscilloscopes (2.2 MB)
- For ScopeCorder, Differential Probe Conversion Cable 701905 (319.4 KB)
Instruction Manuals
- Model 701978 Differential Probe (1.1 MB)
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