Introduction - Teledyne HVD3000 Operating Manual

Introduction

The HVD3000 and HVD3000A high-voltage active differential probes are safe, easy-to-use,
and ideally suited for power electronics applications where the reference potential is
elevated from ground. The probes feature:
Differential voltage measurement capability in high common-mode environments
•
(up to 6kVrms)
Exceptional common-mode rejection ratio (CMRR) across a broad frequency range
•
Wide differential voltage range
•
High offset voltage capability
•
1% DC and low frequency gain accuracy
•
AC or DC coupling
•
ProBus interface with automatic scaling
•
• Auto Zero capabilities
The CMRR for the probes is exceptional out to very high frequencies. This greatly assists in
measuring signals in the noisy, high common-mode environments of power electronics.
High CMRR combined with low probe noise and high offset capability makes the probes
capable of measuring very small control signals floating on high common-mode voltages.
The maximum rated differential voltage specifications are provided for using each probe
within a wide differential voltage range. The probes will even display signals above the
maximum rated differential voltage, up to the maximum measurable differential voltage
before saturation limit, although the specifications cannot be guaranteed. Within this range,
the probe is operating below the saturation point of the amplifier, and very reasonable
results can be expected.
Note: HVD3000A probes are fitted with detection circuits that will indicate when the
differential or common mode voltages are beyond the operating ranges of the probe. A
warning will be displayed in the oscilloscope message bar.
The probes are calibrated for high-precision measurements to within 1% at DC to low
frequency (~10 kHz). This provides for high accuracy of top and base voltage levels of
pulse-width modulated signals. The Auto Zero capability permits further measurement
precision by allowing small offset drifts to be calibrated out of the measurement.
Operator's Manual
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