Emerson MicroCEM Specifiche Scaricare il pdf (Pagina 100)

MAINTENANCE and SERVICE

can be disabled at slow sample rates, so there is no lag time between sampling and data

availability. The 16-bit interface further reduces software overhead by enabling all 16

A/D bits to be read in a single instruction, instead of requiring 2 8-bit read operations.

The net result of this streamlined design is that the ADIO board supports gap-free A/D

sampling at rates up to 200,000 samples per second, twice as fast as our previous

boards.

5.6.2.7 Specifications

Analog Inputs

Number of inputs

32 single-ended, 16 differential, or

16 SE + 8 DI; user selectable

A/D resolution 16 bits (1/65,536 of full scale)

Bipolar ranges ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V

Unipolar ranges

0-10V, 0-5V, 0-2.5V, 0-1.25V, 0-

.625V,

Input bias current 100pA max

Overvoltage

protection

±35V on any analog input without

damage

Nonlinearity ±3LSB, no missing codes

Conversion rate 200,000 samples/sec.max

On-board FIFO 1K x 8(512 16-bit samples)

Calibration Automatic;values stored in EEPROM

Analog Outputs

Number of outputs 4

D/A resolution 12 bits (1/4096 of full scale)

Output ranges ±5, ±10, 0-5, 0-10

Output current ±5mA max per channel

Settling time 6µS max to 0.01%

Relative accuracy ±1 LSB

Nonlinearity ±1 LSB, monotonic

Reset All channels reset to OV

Calibration

Automatic; values stored in

EEPROM

Digital I/O

Main I/O 24 programmable I/O

Input current ±1µA max

Output current

Logic 0

64mA max per line

Logic 1

-15mA max per line

Auxilary I/O 4 inputs, 4 outputs, optional use as

Rosemount Analytical µCEM Continuous Analyzer Transmitter 5-12

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 118 119

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Emerson MicroCEM Specifiche Pagina 100

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