Probe Hold - DATATEC EDU34450A Guia Del Usuario

Probe Hold

The Probe Hold feature allows you to capture and hold a reading on the front panel display. This is useful in
situations when you want to take a reading, remove the test probes, and have the reading remain on the display.
– When a stable reading is detected, the instrument beeps once (if the beeper is enabled), and holds the reading on
the primary display. The preset variation is 10% of the full scale.
– A new reading value is captured when the variation of the measured value exceeds the preset variation. The
instrument beeps once (if the beeper is enabled) when a captured reading is updated.
– If the reading value is unable to reach a stable state (when exceeding the preset variation), the reading value will
not be updated.
When enabled, the instrument begins evaluating readings using the rules described below:
Primary Display = Reading IF Max() – Min() ≤ 0.1% × Reading
N N
The decision to update a new reading value in the primary display is based upon the box-car moving statistics of the
present reading and the three previous readings:
Max (Reading Reading Reading Reading )
N N–1 N–2 N–3
Min (Reading Reading Reading Reading )
N N–1 N–2 N–3
Front Panel Operation
Press [Shift] > [Acquire] | Probe Hold.
The captured reading is shown on the bottom of the display. The live reading is shown at the top left of the display.
– Press [ – ] or [ + ] to decrease or increase the measurement range manually. Press [Range] to enable autoranging.
– Press Resolution to toggle the resolution between Slow or Medium.
– Press Remove Last to remove the last captured reading.
82 Keysight EDU34450A User's Guide