Multimeter Inputs; Input; Using The Input Key - Fluke 8508A User Manual

8508A
Users Manual

Multimeter Inputs

Input

The
the input to the Multimeter: The scan softkey gives access to dual-channel measurement
and processing selection which produces a single result.

Using the INPUT Key

Press the
Front
Rear
Scan
ExGd
Zero Rng
Zero Fnc
cleared by the user from the CLEAR menu, accessed by pressing the CLEAR
key.
3-28
key and its menu allow you to select either the Front or Rear panel terminals as

Input

key to see the
Input
Selects Front Input terminals only.
Select Rear Input
Total Isolation State -You can put the Multimeter in a
state of total isolation by deselecting all the selections
on the
Multimeter has no input.
This state is useful in a remote control system, to
isolate the Multimeter from the system's analog bus.
Readings are taken alternately from each channel, then measurements are
combined as per the selection.
Selecting Front or Rear cancels any Scan selection.
When On, the internal guards are decoupled from
terminal. Operation of Guard in the resistance function is modified,
Guard
and includes Ohms Guard. Refer to the 'making measurements' section for
each function for more details.
Initiates a series of measurements to determine and correct for the Input
Zero and save the result in volatile memory. An indication of the
application of an input zero will appear on the left-hand display.
Independent zero corrections are provided for Front and Rear terminals
and, when in Ohms functions, 2 wire and four wire connections and normal
and low current operation.
Initiates a series of measurements on each range in the function starting
with the highest range, to determine and correct for the Input Zero for each
range.
Input Zeros - Input zero stores are cleared on power up, and may alo be
menu:
INPUT
INPUT key
Menu
only.
terminals
Note
and menus. In this state, the
INPUT SCAN
Note
Note
adj113f.eps
and connected to the
Lo