Digitize - Fluke 8588A Operator's Manual

Example:
If Rd = 100 Ω, Rg = 1 Ω, Ra = Rb = 10 kΩ, then the value of E is given by:
E = (100 x 1) / (10 k x 10 k) = 10
The value of Rx is thus given by:
Rx = 100 x (1 + 10
= 100.0001 Ohms
Internal Guard Connections
External Guard
terminals on the front and rear panels are isolated from each other and from any
internal connection. The internal guard shields and tracks are connected directly
to the internal 0 V.
External Guard
External Guard provides an Ohms Guard function. The internal guard shields,
tracks, and the selected front or rear GUARD terminal are connected to the
internal 0 V. See Figure 10. See Input Terminal Selection for more information.

Digitize

The Digitize function captures a continuous analog signal in a sequence of
discrete time intervals. One way to view the data is to use the Product's Analyze
Frequency Domain Charting feature. With other post-processing using an
external program, the captured data can be turned into even more useful
information. An example is to transform the captured data by Fourier transform,
to determine the relative phase angle and magnitude of harmonically related
components in a signal. The Product has extensive triggering and timing
capabilities to allow precise capture of the data for the Fourier transform. See
Triggering Measurements.
All aspects of triggering a data acquisition in the Digitize function are controlled
by the Product Trigger subsystem. See Triggering Measurements first to use
Digitize to its maximum capability. There is a significant difference in the Trigger
subsystem between Digitize and the other functions. The free-run trigger state,
Initiate Continuous ON, is not supported in Digitize. When you push , the
Product Trigger subsystem is set to the idle state, Initiate Continuous OFF, and
any current trigger cycle is aborted.
-6
(1 ppm of readings)
-6 ) Ohms,
not selected (OFF): In the Ohms or PRT functions, the GUARD
selected (ON): In the Ohms or PRT functions, selecting the
Figure 10. Internal Guard Connections
Reference Multimeter and 8 ½ Digit Multimeter
Functions
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