Auto And Manual Modes; Measurement Results - AEMC 6470 User Manual

4.5.2

AUTO and MANUAL Modes

The principal difference of the behavior of the instrument during a measure-
ment between AUTO or MANUAL mode is:
• In AUTO mode, in case of a detected disturbance, the instrument selects
a measurement frequency that reduces the influence of a disturbance to
a minimum and stops the measurement by itself after a stable result. If no
suitable frequency is found, the instrument signalizes NOISE and stores the
corresponding voltage with its basic frequency.
• In MANUAL mode, the instrument keeps on measuring with a fixed selected
frequency no matter how big the influence of an external disturbance volt-
age is (assumption: the external voltage does not exceed the maximum
input voltage).
If the instrument detects a voltage that exceeds 60V peak the measurement is
cancelled and the disturbance voltage will be displayed.
4.5.3

Measurement Results

This section shows the different possible selections and the different screens
which are reachable with the DISPLAY button depending of the configuration and
the state (1, 2 or 3) of the instrument.
State 1 and State 3: Hz
AUTO-MANUAL Mode
When pushing the Hz
the parameter that is configurable will blink.
The Hz
/OPTIONS
a parameter is made:
• By pushing the Hz
• By starting a measurement pushing the START button
(short push or long (>2s) push - see § 4.5.1)
• By turning the rotary switch
• By pushing DISPLAY
For measurement frequency selection in MANUAL mode, the SELECT
enables the modification of the numerical value (blinking number).
The CHANGE button ► only modifies the user defined frequencies using the table
contained in the instrument.
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36
/OPTIONS
(before and after functional measurement)
button, the display shows the CONFIG symbol and
/OPTION
button selects the parameter, that can be modified. Validation of
/OPTIONS
www.
and SELECT
button to the next step
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