Extech Instruments 380801 User Manual page 11

LOGGING INFORMATION Window
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Write Counts: For every download, the Write Counts field is incremented by one.
•
Memory Size: Size of the data block in the datalogger's memory
•
Memory: Indicates if there was a 'write failure' during recording. 0: None. If 'FAIL'
appears, run a diagnostic test to check the memory (see the 'Diagnostic' section
later in this manual).
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Last Record: Details on last data record in a data block.
•
Status: Status of datalogger ('idle' or 'recording').
DATA LOGGER SETUP Window
ID: Used to identify individual dataloggers; enter a number from 0 to 65535.
Date and Time: The datalogger does not have a real-time clock, therefore the user must
enter a date and time for the 1
recording). The program will then distribute a date and time for all other readings based
on the date/time entered by the user and the sample rate selected. The date and time
formats are MM-DD and HH:MM:SS. Press ENTER after setting the time and date.
Sampling: Set the datalogger sample rate (interval of time between recorded readings).
Range is 0.4 seconds to 13106.8 seconds.
Recording Mode: The menu items under Recording Mode are as follows:
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Normal mode: Datalogger records data at the programmed sample interval.
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Max mode: Datalogger records the maximum value during each interval.
•
Min mode: Datalogger records the minimum value during each interval.
Baud Rate: Select 9600, 4800, 2400, or 1200.
COMMAND: It is recommended that this function be used only by those very familiar
with the commands of the power analyzer and datalogger. Request a copy of the
380803 Protocol Manual from Extech that includes the commands format.
FILE: The File menu heading includes the following selections:
• CONVERT: Convert coded data file into an ASCII data file. A coded data file
RAW_DATA.DMM is generated when the Read/Save button is selected.
• DATA DUMP: Select DATA DUMP to retrieve all of the data stored in the
datalogger. The data will be converted to ASCII format and saved in a file.
ASCII Output to RS-232: The Datalogger can be configured to output data in ASCII
format rather than coded format in order to accommodate a serial printer for
example. Ensure that the RS-232 configuration is setup as specified in the
'Hardware Setup' section earlier in this manual. In the Datalogger window, the
MODE selection under 'ASCII out to RS-232' has three options as follows:
•
Disable: Disable ASCII format data output.
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One Shot Mode (Manual): When the REC button is pressed once, one data
record (W, A, V, PF + CR + LF) will output to the RS-232 port in ASCII format.
•
Continuous Mode (Auto): With this option selected, the user must specify an
output interval. Once configured, the user must turn datalogger power off and
on to enable this function. In this mode, the datalogger outputs data (W, A, V,
PF + CR + LF) in ASCII format at the specified interval continuously.
Stopping the ASCII Output Stream
If the datalogger receives any character from the RS-232 port, or if the user presses
and holds the REC button for 2 seconds to enable datalogging in AUTO MODE, the
ASCII output stream will stop. To restart it, turn power off and on again.
st
reading (make note of the time and date at the time of
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