Select Synchronization Source; Set Trigger Level - Fluke NORMA 4000 Operator's Manual

The measuring time is entered in seconds. For exponential powers, use the following
keys on the numerical keypad:
micro [10–6]
milli [10–3]
kilo [103]
mega [106]

Select Synchronization Source

The synchronization source determines the frequency on which the analysis is based. In
factory configuration 1:W3, the synchronization source is U1, as this signal tends to be
reliable in most cases.
The following options are available:
Value in column Src is highlighted.

Set Trigger Level

The trigger level is in percentages of the measuring range, and measured from the end
value of the range. In factory configuration 1:W3, the trigger level is set to 0 %.
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Exponential Power
1. Enter the exponential power and confirm with Enter.
2. Move the cursor to the return field of the calculator and press Enter.
The average time is shown in column Tavg[s].
3. Save the configuration settings by pressing the SAVE function key.
•
Input at device (channel 1 through 6), current or voltage respectively (U1 through
U6, I1 through I6).
•
Ext for external synchronization signal (connection to port for external
synchronization signal).
•
OFF, if no synchronization source is used (such as measuring of direct current).
To measure the start up of a machine, you might opt for an external
synchronization signal (0.2 Hz to sample rate, max. 50 V), as there is
otherwise no signal at the beginning of the measuring procedure, and thus
no measured values.
1. Press Enter.
2. Select a source or OFF and confirm by pressing Enter.
The selected source or OFF is shown in column Src.
3. Save the configuration settings by pressing the SAVE function key.
By increasing the trigger level, the level of the average is also increased. If
there are several positive slopes in the zero crossing, a higher modulated
signal can be triggered.
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Configure Average Time and Synchronization
μ
m
k
M
Note
Note
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