Cadar ISA LVDT Interface Card



	ISA LVDT Interface Card

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Overview The CADAR ISA LVDT Interface Card is a complete, 16 channel, LVDT and Half-Bridge probe interface, including all analog drive and signal conditioning circuitry, on a single full length ISA format interface card. Also included is a 8 bit digital I/O port - 8 bits in and 8 bits out - for control and monitoring applications. The card is packaged with a Windows NT/2000/XP device driver, sample software in Visual BASIC and Visual C++, and a COM/ActiveX module for use with many other software packages, including Microsoft Excel. Full technical documentation is included.
Specifications
Channels:	16 (all continuously driven)
Resolution:	13bits (ą4095 counts) 10:1 gain adjustment for probe optimization.
Linearity:	ą2 bits
Crosstalk:	ą2 bits (typ ą1 bit - all channels in range)
Conversion time:	~16ms (~60 conversions per second)
Excitation:	5Vpk, 7.9kHz (quartz controlled for stability) - referenced at probes for true ratiometric operation.
Digital I/O:	Data entry input (volt-free closure). Secondary input (volt-free closure). 8b in, 8b out, for additional control functions (5V logic levels)
DC Operation:	configurable by jumper settings (ą4V dc input range)
Power requirements:	ą12Vdc@300mA, +5Vdc@200mA, -5V@50mA (from ISA Bus)
Dimensions:	overall: 352x125mm, pcb: 335x107mm
All that you need to connect most types of LVDT or Half Bridge probe to the card is a 16 way probe adapter. You can build this as part of your system (only cable and connectors are needed) or order ready made adaptors from CADAR for most of the common probe pin configurations. A range of suitable LVDT probes is available from Cadar - click here for details.
For more information about this product please email or call 08453 708 709

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