Emerson MicroCEM manual 27

Model MicroCEM

Instruction Manual

748467-A January 2002

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

Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-13