Agilent Technologies Twelfth 4287A RF LCR Operation Manual page 88

Function Overview
Names and Functions of Display Areas on the LCD Display
16. Measurement parameter/measurement value
Displays the measurement parameter/measurement value. The 4287A displays a maximum
of four measurement values for measurement parameters at one time.
NOTE
The four measurement parameters shown on the single point measurement display are
called "measurement parameter 1," "measurement parameter 2," "measurement parameter
3," and "measurement parameter 4" in that order from the top of the display area.
You can directly call up the measurement parameter selection softkey menu by clicking in
the measurement parameter area with the mouse. The measurement parameter need not be
preset on the measurement point setup display; you can change it freely on the
measurement display.
88
Display
(blue display)
ExtRef
(blue display)
Comptr
(blue display)
Svc
Ovld (red display)
Definition
The external frequency reference signal is input as
described in "7. External reference signal input terminal
(Ext Ref In, 10 MHz 0 dBm)" on page 80, and the 4287A
test signal is phase-locked to that reference signal.
Comparator (BIN sort) turned on.
The 4287A is in service mode. The service mode is used
for self-diagnosis and repair of the 4287A. This means that
you cannot obtain a measurement guaranteed by the
specifications. If this indicator is lit during normal use, the
instrument may be malfunctioning.
An overload has occurred in the measurement circuit, and
the measurement value is not correct. This indicator lights
up when the DUT is attached to or detached from the
measurement terminals during measurement.
Chapter 4