Data Translation DT9871, User Manual

Page: 105 / 134

Troubleshooting
105
Data appears to
be invalid. An open connection exists. Check your wiring and fix any open connections; see the
instructions in
Chapter 4 .
A transducer is not connected
to the channel being read. Check the transducer connections; see the instructions in
Chapter 4 .
The thermocouple, RTD, or
voltage input that you
connected to the channel does
not match the software
configuration for that channel. Check your wiring and ensure that what you specify in
software matches your hardware configuration; see the
instructions in
Chapter 4 .
Your instrument may need
recalibration. The instrument is calibrated at the factory. Thereafter,
yearly calibration is recommended. Use the Measurement
Calibration Utility, described on
page 16 , or return your
instrument to Data Translation for recalibration.
For information on factory recalibration, contact Data
Translation at 508-946-5100 (if you are in the USA) of call
your local distributor (if you are located outside the USA);
see our web site (www.mccdaq.com) for the name and
telephone number of your nearest distributor.
USB 2.0 is not
recognized. Your operating system does not
have the appropriate Service
Pack installed. Ensure that you load the appropriate Windows Service
Pack (version 2 for Windows XP). If you are unsure of
whether you are using USB 2.0 or USB 1.1, run the Open
Layers Control Panel applet, described in
Chapter 3 .
Standby mode is enabled on
your PC. For some PCs, you may need to disable standby mode on
your system for proper USB 2.0 operation. Consult
Microsoft for more information.
Table 6: Troubleshooting Problems (cont.)
Symptom Possible Cause Possible Solution