Using Hardwired
Telemetry
In addition to the standard off-line analysis, real-time analysis by
hardwired
telemetry
is possible with Insight software when used with an intermittent or
periodic furnace (a batch process).
Thus, with thermocouples trailing from the furnace and attached to the logger
outside the furnace, data being gathered by the logger is transmitted via the
communications lead directly to the PC, and the temperature profile can be
watched developing in the Insight software as data is received, i.e. in real time.
Telemetry is not available with Insight Lite software.
For processes requiring more than the 12 data channels available with a single
XDL12 logger, Insight has the capability to gather and analyze data by
hardwired telemetry from up to three XDL12 loggers simultaneously (see
below).
Running a Temperature Profile Using
Hardwired Telemetry
A typical use of the XDL12 logger is in carrying out a
temperature uniformity
survey
of a furnace to ensure compliance with the AMS 2750D or other
standards. in this case, temperature profiles
(
using telemetry or not
)
will be run
with
Insight Furnace Surveying
software using the Temperature Uniformity
Survey Wizard, and not as described below. To use the wizard, run Insight Furnace
Surveying and click – or select Tools > Wizards, or File > New > Temperature
Uniformity Survey, or Furnace Surveying > Temperature Uniformity Survey.
With Insight Furnace Surveying,
two or three XDL12 loggers can be used
together
in order to gather data from up to 36 data channels simultaneously.
This is also done using the Temperature Uniformity Survey Wizard.
For details, see the
Furnace Surveying User Manual
and the software’s
Help system
.
The remainder of this chapter covers use of the logger with Insight Furnace
Tracker (not with Furnace Surveying). By following the procedure in this
chapter, you will use the Logger Reset and Logger Download dialogs to run a
temperature profile using hardwired telemetry.
DATAPAQ XDL12
Using Telemetry
29