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Section 4
To view Datalogger contents press
To return to Datalogger Control press
4.4.2 OUTPUT DATALOGGER
This menu cell allows you to send the Datalogger contents to an external device (usually a
computer or printer) via the meter’s RS-232 Serial I/O port. This command is effective only
after a successful install. In addition, you have to enable datalogging and select data items in
the Datalogger Setup menu. Note: This command sends the data collected by both channels of
a dual-channel system. Therefore, you should include [Site ID] (current site setup name),
[Date] and [Time] in your report so that you can identify the source of each report.
The meter interfaces with most serial printers or personal computers. Controlotron offers
the model 996P portable serial printer. You must use the proper cabling between the flow
computer and the external device. In addition, you must configure the RS-232 Setup correctly.
You should turn off the Datalogger function before you transmit an extensive printout. This
will avoid contaminating the printout with new Datalogger data. Datalogger reports are se-
quential ASCII text files.
To send Datalogger contents to the RS-232 Serial Port:
Check the flow computer-to-external device connections and your RS-232 Setup
parameters (see RS-232 Setup).
To access the [Output Datalogger] option list press
Scroll the cursor to [Yes] by pressing
To transmit Datalogger contents to external device via the serial port press
To stop printout press
4.4.3 CIRCULAR MEMORY
In its default mode, the Datalogger collects data until its memory becomes full. At that time
the flowmeter suspends data logging and cannot resume until the datalogger memory is cleared
(see Clear Datalogger command). Multi-Channel systems include Circular Memory and Single
Channel systems do not. Circular Memory allows the Datalogger to ”‘write over” its oldest
records when memory reaches full capacity. If you enable Circular Memory, you are assured
of always collecting the most recent data. But, also remember that you will lose the oldest
Datalogger reports. Note further that invoking Circular Memory deletes the current contents
of the Datalogger.
NOTE: To avoid potential data loss, the flowmeter prevents you from altering the Cir-
cular Memory setting when a channel is active.
To setup and enable Circular Memory:
The Datalogger Mode menu must have the [Memory] menu cell selected.
Datalogger items must be selected (e.g., Site ID, Date, Time, etc.).
All active channels in the Channel Setup menu must be disabled. To disable active
channels, select the [Channel Enable] menu cell and then [No].
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