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Instruction Manual
748467-A
January 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-13
Model MicroCEM
g. 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 trigger/control lines
Counter/Timers
A/D Pacer clock..................... 32-bit down counter
(2 82C54 counters cascaded)
Clock source.......................... 10MHz on-board clock or external signal
General purpose.................... 16-bit down counter (1 82C54 counter)
General
Power supply ......................... +5VD±10%@200mA typ
Operating temperature .......... -25 to +85°C
Weight.................................... 3.4oz/96g