Chapter 4 – Measuring
Erasing Bad Data
4–2
Brüel & Kjær2238 Mediator
User Manual
4.1 Erasing Bad Data
The back-erase function allows you to delete up to the last
15 seconds of the current measurement. This is particularly
useful for deleting a non-typical noise occurrence during a
measurement.
1. Pause Mediator with the Measurement Window open.
2. Press the
key to show the Back-erase
Window
.
3. Use the cursor keys to set the desired time span
to be erased. Normally you can select 5, 10 or 15 seconds
erase time, 15 seconds being the default value. However,
for short measurement times (< 15 s) the maximum pos-
sible erase time is displayed.
4. Press the <Ok> softkey to back-erase. The selected
time span is erased and the Elapsed Time counter value
is decreased with the selected time.
4.2 Setting a Measurement to Start
Automatically
Mediator can manage up to four auto starts. Auto Starts are
shared among the application modules that support them.
Each Auto Start has a number (1 through 4) and is set to
start a specific application at a specified time (up to one
Fig.4.1 The Back Erase Window
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