Define Instruments PRO-CTR200 Manual page 21

D _ _ _ TIME PERIOD FOR RATE DISPLAY scrolls across the display, and the
current selection appears. Use the
MINS or HOURS, and then press
This parameter allows you to view the eff ective rate over diff erent time periods. For example, if
the measurement units are metres, then rate can be viewed in m/sec, m/min or m/hr.
The controller will automatically calculate the required scaling factors based on the input chan-
nel setup, so you must complete 'Counter Setup' (8.2) fi rst.
E _ _ _ RATE MULTIPLIER scrolls across the display, and the current multiplication
factor appears. This option adds a scale factor, to display the rate in the required
units. Use the
X10, X100 or X1000. (To disable this feature select 'X1'.) Then press
F _ _ _ LOW CUT scrolls across the display, and the current low cut value appears.
When the rate drops below the low cut value, it displays as zero. Use the
and buttons to adjust this value (or set the low cut value to '0' to disable this
feature). Then press
G _ _ _ DISPLAY ZERO TIME scrolls across the display, and the current display zero
time appears. This controls how quickly the rate display changes to zero. Use
the and
faster inputs with more than 2 pulses/second). Then press
H _ _ _ AVE SAMPLES scrolls across the display, and the current averaging ap-
pears. Using the
controller will average, and then press
Your controller has input signal averag-
ing, optimising stable measurement.
If the change in input exceeds the averag-
ing window value it will not average, en-
suring fast response when there are large
diff erences between readings.
Increasing the number of AVE SAMPLES
will stabilise measurement, but it will also
slow down response rates.
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and buttons to select: X0.0001, X0.001, X0.01, X0.1, X1,
.
buttons to select either: 100SEC (for slow inputs), or 0.5SEC (for
and buttons, alter the number of rate samples that the
and buttons to select: SECS,
.
.
Input exceeds
averaging window
Number
of samples
.
.
Averaging window
in displayed counts
Sampling
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