HVP 255: Precision USB HV Probe

Available from Computer Power Supply, Inc.

Precision USB 50 high voltage probe

• Excellent accuracy: 0.01% typical from 0 to 50 kV
• Handles DC voltages to 50 kV
• 1,000 MΩ input impedance
• Temperature coefficient under 50 ppm/°C
• Compact profile: only 12 inches in length
• Compatible with all CPS probe tips

Model 255 is a USB 2.0 compatible high voltage probe that measures DC voltage up to 50 kV with very high accuracy. Unlike conventional analog probes, it requires no meter-dependent compensation or divider ratio. Model 255 does not measure AC voltage.

It employs a high resolution digitizer and embedded processor that work together to greatly reduce sensitivity to voltage coefficients and temperature variations, thus largely eliminating the primary sources of error found in purely analog probes. For higher voltage applications, the model 505 100 kV USB probe is also available.

The probe's unusually short length is made possible by our oil-free, state-of-the-art epoxy encapsulation technology. DC calibration data is traceable to NIST primary standards. Its outstanding accuracy and compact size make it ideal for calibrating, monitoring and testing a wide range of high voltage equipment, including power supplies, CRT display systems, microwave systems, and nuclear instrumentation.

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