ADM-880C 07/20/09
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Press ALT / STORE / ALT / STORE. The meter will briefly display [CHANGE MEM], and then will display [CHG GROUPs].
Press the READ/SELECT key. The meter will display the current memory group letter. Press
=
SCAN repeatedly to show
prior memory letters or SCAN
<
to show the following group letters. Press the READ/SELECT key while the letter for a new
memory group is being displayed. The meter will automatically place the meter in the STORE ALL mode in the new memory
group.
Groups are lettered A to Z in capitals, excluding O to avoid confusion with zero. Group “A” is set to be the default group.
The total combined memory holds up to 2000 readings. The user may save all 2000 readings in Group “A”, or none in “A”
and all in “B”, or store readings as desired throughout the available 25 groups. Readings can not be added to a previous
memory group after a new group has been selected. If a previously used memory group is selected, the meter will display
[GRP IN USE].
5.7.3.2 REPLACE READING IN MEMORY
A questionable reading may be replaced and the related statistics updated. Press STORE and the meter will display
[STORE ALL]. Use the SCAN keys and/or GO TO command to display a particular reading. Press ALT / STORE / ALT
/ STORE. The meter will briefly display the selection loop [CHANGE MEM], and then [CHG GROUPs]. Press STORE
again. Display will read [REPLACE s]. Press READ to take a new measurement that will replace the previous reading,
retaining the same reading sequence and memory group letter. The memory group statistics and associated data will be
automatically updated. When the replacement reading is taken, the user must take care to use the same measurement
mode and same settings for units, density, and TemProbe connection as the original reading. The REPLACE function is
not available when the memory is full.
5.7.3.3 ERASE READING IN MEMORY
A questionable reading may be erased instead of replaced. Press STORE and the meter will display [STORE ALL]. Use
the SCAN keys and/or GO TO command to display a particular reading. Press ALT / STORE / ALT / STORE. The meter
will briefly display the name of the selection loop [CHANGE MEM], and then will display [CHG GROUPs]. Press STORE
twice. The meter will display [ERASE s]. Press the READ/SELECT key to erase the reading from memory and
automatically update the memory group statistics. If there were 10 readings in the memory group, and one is erased, the
new statistics will represent the remaining nine readings. When the erased reading is viewed using a SCAN key, the meter
will display the reading sequence number and memory group letter and the word [ERASED]. The other readings in the
memory group are not affected. The ERASE function is not available when the meter’s memory is full.
5.8 VIEW KEY
The VIEW key is used to display group statistics and associated data for stored readings, and also to download stored
readings to a printer. Readings must have been previously stored in memory as described in Section 5.7.1 STORE MODE.
5.8.1 VIEW GROUP STATISTICS
The displayed statistics include the average, sum, minimum, maximum and standard deviation. The statistics are calculated
for all of the readings within a specific memory group that are of the same measurement mode as the displayed reading.
If memory group “A” contains all possible types of measurements, differential pressure, absolute pressure, temperature,
pitot tube, VelGrid, AirFoil, backpressure compensated air flow and nonbackpressure compensated air flow, and the user
presses either SCAN key until a pitot tube reading in memory group “A” is displayed, then presses the VIEW key, the meter
will display the statistics for only the pitot tube readings in memory group “A”. If the user then scans to a differential
pressure reading in memory group “A” and presses the VIEW key, the statistics displayed are calculated only for the
differential pressure readings in memory group “A”. It may take a few minutes for the meter to calculate the statistics if there
are a very large number of readings in memory.
Store readings in memory as described in Section 5.7.1.1 STORE ALL or Section 5.7.1.2 STORE LAST. Scroll to a
particular reading within a particular group using the SCAN keys as described in Section 5.4
=
SCAN KEY and Section 5.5
SCAN
<
KEY. Scroll through the available statistics by pressing the VIEW key repeatedly. Press any key other than the
VIEW key to exit the statistics display loop at any time.
Note that statistics may be viewed for readings taken in a prior group, while the meter is currently in a STORE mode in a
later group. The following is an example of statistics which may be viewed by pressing the VIEW key repeatedly.
10
0
.2090
10 is the number of readings taken in that measurement mode within that memory group,
0
is
the average (mean) symbol and .2090 is the average of the readings
3
2.0903
3
is the sum symbol and 2.0903 is the sum of the readings
10v .1008
10 is the sequence of the lowest reading, v is the minimum reading symbol and .1008 is the
lowest reading
Summary of Contents for AIRDATA ADM-880C
Page 42: ...ADM 880C 07 20 09 37 FIGURE 6 3 VELGRID ASSEMBLY...
Page 50: ...ADM 880C 07 20 09 45 FIGURE 10 1 FRAME STORAGE FIGURE 10 2 FLOWHOOD IN CASE...
Page 51: ...ADM 880C 07 20 09 46 FIGURE 10 3 FLOWHOOD ASSEMBLY...
Page 53: ...ADM 880C 07 20 09 48 FIGURE 10 7 1X5 FRAME ASSEMBLY FIGURE 10 8 3X3 FRAME ASSEMBLY...