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CD Start Page | DATA ACQUISITION ONLINE Page | DATA ACQUISITION PRODUCTS Page |
DAS-TC is an easy-to-use, highly accurate IBM PC and compatible plug-in solution for measuring thermocouple and voltage inputs. The DAS-TC can measure any mix of J, K, T, E, R, S, and B type thermocouples, millivolt and voltage inputs. Up to 16 differential inputs are provided as well as one cold junction compensation (CJC) sensor input. Automatic calibration, gain selection, CJC, thermocouple linearization, conversion to degrees or volts, and averaging are performed by an onboard microprocessor.
A voltage-to-frequency (V/F) converter allows highly accurate and stable thermocouple readings even in noisy environments. Programmable rejection rates can be selected to match the line voltage for best noise immunity. The input and measurement section is also isolated to prevent damage to the computer from high common mode voltages.
A configuration utility is supplied with the DAS-TC that allows each channel to be set up for thermocouple type or voltage input, ░C or ░F, number of readings to average, and the boardÆs rejection rate. This file is downloaded into memory upon initialization of the board. Channels configured as thermocouple inputs are converted to temperature measurements by the on-board microprocessor which adjusts for the CJC reading.
The DAS-TC is calibrated automatically upon initialization and periodically thereafter. A precision voltage reference determines the gain error and offset coefficients. These coefficients are stored in the onboard memory and are used to adjust the measurements of the DAS-TC. The CJC sensor is read at initialization and during calibration and this value is also stored in memory.
The DAS-TC standard software package, which is supplied with the board, includes everything needed to install, configure, test, calibrate, and program the board using a DOS-based BASIC language. The utility and driver software provided with the DAS-TC makes the board easy to use. You can program the DAS-TC in a variety of DOS and Windows-based languages using the high level Function Call Drivers.
ADVANCED SOFTWARE
The ASO-TC extends the DAS-TCÆs
language support to C and Pascal
under DOS and all Windows
programming languages. It includes
a Function Call Driver, which is
supplied in multiple forms to support
the different languages. The
Datalogger and configuration
utilities are also supplied in
Windows versions. The following
DOS languages are supported
Microsoft C/C++, Borland C/C++
and Turbo Pascal. Windows 3.X
languages supported are Borland
C/C++ and Turbo Pascal for
Windows, Microsoft Quick C and
Visual Basic for Windows.
ASO-TC Function Call Driver
provides a complete set of functions
to allow access to all
features and operations of
the DAS-TC. A Microsoft
WindowÆs 3.X Dynamic
Link Library (DLL) is also
provided for programming
in Windows-based
languages. By supplying
the DAS-TC drivers as a
standard DLL, DAS-TC
application programs can take
advantage of all Windows features.
COPY [To Your Hard Drive] DAS-TC DOS Driver Software Now
VIEW an Adobe Acrobat pdf file for more product info (requires Acrobat Reader).
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