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16 of 50 Operating Information - 3650 Portable O2 Analyzer
Operator Manual
ORBISPHERE
2.3 Storing Measurements In the Instrument
The analyzer will store up to 500 gas measurement values, labeled by numbers 0
through 499, along with the current date and time of each measurement. You have the
choice of acquiring this information manually or automatically, as described below.
Before storing measurements, you should verify the date and time settings of the
instrument's internal clock, as described in “Clock Settings” on page 39.
2.3.1 Automatic Data Acquisition
Note:
When the instrument is used to automatically store measurement data, all buttons
except the POWER key are disabled. If enough time elapses to store all 500 values, the
instrument will return to normal measurement mode and the buttons re-enabled.
Before starting automatic measurement storage, first select the sampling rate desired
using the Sampling Rate menu of the WinLog97 program (see “Automatic Data
Acquisition - Setting Sampling Intervals” on page 26).
Note:
If you have not cleared previously stored values, the storage sequence automatically
overwrites the older values, as they are stored.
To end automatic storage, switch the instrument OFF (by pressing the POWER key)
while it is in normal measurement mode and not while it is in the process of automatically
storing data.
1) Switch the instrument OFF (by pressing the
POWER key)
2) Then hold down the STO button while
switching the instrument back ON. The LCD
displays the message Sto for about one
second
3) Normal gas concentration measurements are
displayed for about two minutes
4) After two minutes the instrument displays the
sample number (starting at 000), then the gas
concentration measurement value followed by
[---] to indicate the measurement is being
stored.
5) This storage sequence repeats automatically,
at the rate specified by the WinLog97 program
Sampling Rate menu. Values are stored
sequentially in sample numbers 000 through
499.