Input; Guard - Fluke 8508A User Manual

Input

The following commands are used to select an input; or combined usage of the two inputs to
calculate the Ratio, Difference and Deviation measurement modes. The selections are mutually
exclusive.
FRONT
This selects the front terminals.
REAR
This selects the rear terminals. NOTE – the DCI/ACI signals that can be applied to the
rear terminals are restricted to 2A max. and scan operations for these function are not
available. Also 4 wire sense for voltage is not available.
OFF
This isolates all the terminals and deselects the scanning measurements.
DIV_REAR
This selects the measurement at the front terminals followed by a measurement at the rear
terminals and computes the ratio of the signals (Front / Rear).
SUB_REAR
This selects the measurement at the front terminals followed by a measurement at the rear
terminals and computes the difference of the signals (Front - Rear).
DEVTN
This selects the measurement at the front terminals followed by a measurement at the rear
terminals and computes the deviation of the signals (Front – Rear / Rear).
Power On and Reset Conditions
FRONT
Exit from a Scanning Mode
Achieved by selecting one of the two inputs or OFF.

Guard

Selection of guarding for all functions.
phs

INPUT

Input and Ratio Configurations
GUA RD phs
Remote Guard
Remote Operations Using the IEEE 488 Interface
Syntax Diagrams of Major 8508A Functions
FRONT
REAR
DIV_REAR
SUB_REAR
DEV TN
OFF
INT
EXT
4
adj217f.eps
adj218f.eps
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