15
MORE OPTIONS
Selecting this menu item, will take you to sub-menu to set other, less frequently used settings. (See
next section: OTHER OPTIONS, below)
OTHER OPTIONS Menu
This menu is accessed via the MRI-3000's OPTIONS menu. It allows the setting of some of the less
frequently used settings. Please note, in single port models, the RE-Enable Sweep option does not
appear here.
RLC MODEL
This sets the circuit configuration to use when calculating the equivalent inductance or capacitance of the
circuit under test. When the complex impedance of a single-ended device is measured, this can be
expressed as a combination of resistance and reactance (R + jX). The value of X in terms of equivalent
capacitance or inductance will depend on whether that reactance (X) is in parallel or in series with the
resistance (R). For the equivalent L or C to be calculated correctly, the user must specify which circuit
model to use.
SYSTEM Z
0
Allows the setting of the MRI-3000's reference impedance (Z
0
) to something other
than 50Ω (which is the
default). This to be used on systems that do not use a Z
0
of 50Ω. While it is possible to set this
parameter to ANY value, reasonable values
will range from 15Ω to 300Ω.
RE-ENABLE SWEEP
Press ENTER to re-enable the sweep. When the sweep is running, the LED above the SWEEP/CW
button will flash. This option is available as the MRI PC Vision software may, during normal operation,
turn the MRI-3000's sweep OFF (This is especially true when using PC-Vision). If the sweep LED is not
blinking, use this option to turn the Sweep back ON before starting calibration or testing.
MEMORY OPERATIONS
The Memory menu is for saving and recalling test results and settings to/from the MRI-
3000’s internal
memory. Pressing the MEMORY key brings up this menu:
DATA SAVE
Press ENTER to open a screen to enter the test result file name, then save it in memory.
