Xylem FM500 ULTRASONIC FLOW METERS - Manual (Page 64)

Page 64
9.2.2
Serial & USB
Connection
If connecting via RS-232, you must select a
SERIAL COM PORT number.
First connect the USB cable to the SPU.
Once connected, the new COM PORT
number should automatically appear in the
pull-down menu and can now be selected. (It
If connecting via USB, you must select also
select a COM PORT number. This is
because the USB connection utilizes a
USB/SERIAL conversion method.
will most likely be the largest number port shown.)
NOTE: On some computers, an adjustment will be need to be made to the “latency timer”
setting on the USB COM port to enable proper communications. Go to Control Panel /
Systems and maintenance / Device Manager. Select PORTS. Double click USB
CONVERTER. Select the PORT SETTINGS tab. Click ADVANCED. Set LATENCY
TIMER to a value of 1. Save the settings.
When the software is connected to the SPU and activated, ALL log data that is stored in
the SPU buffer is automatically downloaded to a folder
on the computer’s C: drive. Log data is stored in a .TXT file.
The SPU can store approximately 10,000 logs. New logs will replace old logs on a first in -
first out protocol.
Each individual log file consists of Date, Time, Flow Rate value, and Flow Total value.
2008/07/15 07:18:27 Rate: 3.241483 Total: 147.137275 Code:
Note that log files stored on the SD memory card are not affected by the SPU buffer.
named “Ultrasonic Flowmeter”
and placed
9.3
Retrieving Log
Data
Ultrasonic Flowmeter