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A/D Converter Board INT7, 1 channel
Description
INT7 is an internal 24-bit A/D converter board for measurement of voltages of chromatographic and electrochemical detectors. The board is designed for the PCI bus and equipped with a Plug-and-Play system. It contains one to four fully independent sigma delta integrating A/D converters for processing positive and negative voltages. INT7 is a direct successor to the classical ISA board INT5, with which it shares identical design of the analog channels and, accordingly, identical basic electric parameters.
The fundamental advantages include the following:
- designed for the PCI slot of modern PCs
- Plug-and-Play technology for facile installation under the latest Windows versions
- four-channel version directly on the board - the board thus occupies a single slot
- more compact and more reliable owing to the employed SMT
- improved temperature stability.
Compared with INT5 each channel has a single input and the connector wiring is different
(a converting adapter is available upon request to enable direct replacement).
Specification
Technical data
| Converter type | 24 bit integrating, sigma - delta integration |
| Number of channels | 1 |
| Analog inputs | differential, galvanically separated |
| Input range | unipolar and bipolar, each channel separately: 156 mV - 10 V |
| Conversion time | 10 - 100 ms |
| Non-linearity | < 0.0015 % |
| Temperature dependence | < 10 ppm/°C |
| Auxiliary inputs | 4 TTL, the first two can be controlled through the built-in opto-electronic unit (2-5 mA current) |
| Auxiliary outputs | 8 TTL (maximum current load 10 mA), the first four control relays (100 V/0.5 A) |
Resolution for various acquisition speeds and input ranges:
| Speed | 10 V...1250 mV..156 mV |
| 10 Hz | 20 bit...19 bit...16 bit |
| 50 Hz | 18 bit...17 bit...15 bit |
| 100 Hz | 17 bit...15 bit...14 bit |
Possible combinations:
| MS-DOS | x |
| Win 3.1 | x |
| Win 95/98/ME | CSW32, CSW17 |
| Win NT/2000 | CSW32 |
| Win XP | CSW32 |
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