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Section 6
6.8.1 DATALOGGER MODE
The [Datalogger Mode] option list allows you to disable the Datalogger, transmit reports to an external
target via RS-232 port, or store selected data for later display. The default setting is [Off]. After enabling
the Datalogger, select a data format before generating a report.
To select a Datalogger Mode:
To access the [Datalogger Mode] option list press the <Right Arrow>.
Move the cursor to the desired mode by pressing the <Up/Down Arrows>.
To store the selection press <ENTER>
6.8.2 DATALOGGER DATA
Set the Datalogger to record any or all of the data offered on the [Datalogger Data] option list shown
below. However, recording unneeded data wastes valuable system RAM. We recommend that you
always select [Site ID] (name) and [Time] to identify each line of data.
None
Default – Datalogging is disabled.
Site ID
You entered this site name when you created the site.
Date
The report date according to the meter's real time clock. (Format: MM.DD.YYYY)
Time
The report time according to the meter's real time clock. (Format: HH.MM)*
Flow
The instantaneous flow measured at the time of the report.
Average Flow
The average flow rate measured since the last report.
Raw Flow
The uncompensated flow rate in in/sec2 (only zeroed - no Reynolds number curve applied).
Total
The total flow accumulation measured at the time of the report.
Vs
The average liquid sonic velocity since the last report.
Valc
The signal strength measured at the time of the report.
Aeration
The aeration percentage recorded at the time of the report.
Alarms
The letter codes of any alarms active at the time of the report (see below).
Delta T (uSecs)
The Up to Down transit-time difference measured at the time of the report.
*The Time field expands to HH.MM.SS when you select a logging interval of more than once per minute.
If you select Alarms, the Datalogger logs the state of each alarm function upon generating a report. A
dash [-] represents an inactive alarm.
A letter code represents an active alarm (see below).
Alarm Letter Codes and Descriptions
S ........ Spacing .......... Transducer spacing may need re-adjustment
E ........ Empty ............ Pipe is empty
R ....... Rate ............... Flow above High setting or below Low setting
F ........ Fault .............. Three continuous seconds without new data update
A ........ Aeration ......... Current aeration percentage exceeds the alarm setpoint
M ....... Memory .......... Last valid reading for a selected interval during Fault condition
K ........ Makeup .......... In-Process Makeup occurred
I ......... Interface ......... Liquid Vs exceeds interface alarm setpoint
P ........ Pig ................. Pig passage detected (optional)
Z ........ ZeroMatic ....... ZeroMatic signal fault (optional)
6-48
1020NFM-1D
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