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1.5 Overview of the Time Averaging Feature
The DG-700 has a choice of 4 time averaging periods which are applied to both measurement channels.
When the gauge is turned on, the default time averaging period is 1 second average. To change the
selected time averaging period, press the TIME AVG button. The currently selected time averaging
period is shown in the TIME AVG portion of the gauge display.
1.5.a Description of Time Averaging Periods:
-
1 Second Average (1) – Both measurement channels are updated once per second with the average of the
readings from the previous 1 second. The 1 Second Average is the default time averaging period when turning
on the gauge, and is the period most commonly used.
-
5 Second Average (5) – Both measurement channels are updated once every 5 seconds with the average of the
readings from the previous 5 second period. When first activated, the display shows "---" until the first 5 second
measurement buffer has been recorded. The 5 Second Average should be used when the 1 Second Average
reading is fluctuating more than desired.
-
10 Second Average (10) – Both measurement channels are updated once every 10 seconds with the average of
the readings from the previous 10 second period. When first activated, the display will show
"---" until the first 10 second measurement buffer has been recorded. The 10 Second Average mode should be
used when the 5 Second Average reading is fluctuating more than desired.
-
Long Term Average (L) – Both measurement channels are updated once per second with the running average of
all readings taken after the Long Term Average period is activated. When using Long Term Average, the gauge
continuously adds the current measurements to the measurement buffer and displays the average value of all
recorded measurements. The gauge will operate for approximately 2 hours when using Long Term Average
before the measurement buffer is overloaded. When the buffer is overloaded, both channel readings will re-start
a new long-term average period.
1.5.b Illustration of Time-Averaging Operation (First 10 seconds of operation):
1 Second Average:
Seconds: 1 2 3 4 5 6 7 8
Pressure 12 5 10 2 6 15 8 12 2
Signal:
Display: 12 5 10 2 6 15 8 12 2
10 Second Average:
Seconds: 1 2 3 4 5 6 7 8
Pressure 12 5 10 2 6 15 8 12 2
Signal:
Display: -- -- -- -- -- -- -- -- -- 8
1.5.c Resetting the Time Averaging Measurement Buffer:
When using the 5 second, 10 second or Long Term averages, it is sometimes desirable to reset and
restart the time averaging measurement buffer when an unwanted signal has been recorded during a time
averaging period (e.g. someone steps on the tubing during a Long Term Average measurement). To reset
and restart the time averaging measurement buffer for both channels, press the START button.
5 Second Average:
9 10
Seconds: 1 2 3 4 5 6 7 8
6
Pressure 12 5 10 2 6 15 8 12 2
Signal:
6
Display: -- -- -- -- 7
Long Term Average:
9 10
Seconds: 1 2 3 4 5 6 7 8
6
Pressure 12 5 10 2 6 15 8 12 2
Signal:
Display: 12 9 9 7 7 8
5
Chapter 1
Feature Summary
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Operating Instructions
for the DG700
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