- Amplifier-per-channel multiplexed system
- Automatic calibration
- 256 analog inputs; expandable to 2048
- Throughput rates to 50kHz
- Differential inputs
- Complete line of Analog and Digital function cards
- 10 Mohm input impedance
- 16-bit resolution including sign
- Full scale inputs from +/-5mV to +/-10.24V
- Voltage insertion calibration automatic, built in
- SCSI or IEEE-488 interface
here for System 472
The NEFF System 472 (S472) DAS is a complete moderate-speed DAS
for use in computer-based applications. The S472 is designed primarily
for computer automated data acquisition in test facilities, laboratories
and industrial plants or wherever a moderate-speed DAS is required.
The S472 is designed to accept analog inputs ranging from +/-5mV
to +/-10.24V full scale in 12 programmable steps. Sensors such as
potentiometers and thermocouples can be input directly to the S472
function cards thus eliminating any need for external signal conditioning.
S472 consists of a 7-inch high, 19-inch wide enclosure with power
supply, backplane wiring, I/O Control Logic printed circuit card,
Analog Subassembly printed circuit card, and 16 I/O card slots that
accept any combination of S472 function cards. Expansion assemblies
are available to extend function card capacity to 128. The maximum
number of channels or data points to be serviced depends on the
type of function cards used.
A built-in calibration supply provides automatic end-to-end calibration
of all channels and the post amplifier. Software initiation commands
a sequence which calibrates all channels and stores correction constants
in non-volatile memory, providing an accuracy of (0.02% F.S. + 2
uV) at a throughput rate of 50,000 measurements per second.