Delmhorst Instrument RDM-3P - Manual (Page 24)

Copyright  2005, Delmhorst Instrument Co.
Page 21 of 28
delays built in to allow the other link components to come online in any
sequence.
Troubleshooting The I/R Link:
Most problems tend to occur due to the positioning of the meter relative to the
Base Unit. There are a few error messages that may appear on the meter’s
screen:
a. Timeout: This error message occurs when too much time has passed
between data sent by the meter and the response that should have been
received from the Base Unit. Possible causes:
o Meter misalignment with the Base Unit (make sure the
communication windows are facing each other, within the distance
indicated).
o No connection to the PC. The Base Unit must be connected to the
PC through a USB cable. Check connection.
b. KBD: This message occurs when the user presses a key during
communications. The meter interprets this as a request to escape this activity
and returns to the Main Menu. The Base Unit should return to a green LED
status in a few seconds. A message should appear on the PC screen as well,
indicating lost communications.
c. Sync: This message occurs when data framing is lost during data
transmission. This would only happen if the wireless link becomes unreliable.
Ensure the meter and Base Unit are aligned and restart the session.
d. Data E: This message occurs when the content of a correctly framed data
packet is invalid. Again, this is an unreliable wireless link problem.
NOTE: Individual records cannot be downloaded to the PC. The entire storage
content is delivered to the PC during a link session.